LG SV-iC5 Series Instruction Manual

Lg inverter instructions manual

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User manual (17 pages)

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SAFETY INSTRUCTIONS

Improper operation may result in serious personal injury or death.

Improper operation may result in slight to medium personal injury

or property damage.

WARNING

Important User Information

SV-iC5

Table of Contents

Summary of Contents for LG SV-iC5 Series

Page 1: Safety Instructions
Particular attention should be directed because dangerous voltage may be present. Keep operating instructions handy for quick reference. Read this manual carefully to maximize the performance of SV-iC5 series inverter and ensure its safe use. Do not remove the cover while power is applied or the unit is in operation.
Page 2: Operating Precautions
Important User Information pinching. Otherwise, you may get an electric shock. Install the inverter on a non-flammable surface. Do not place flammable material nearby. Otherwise, fire could occur. Disconnect the input power if the inverter gets damaged. Otherwise, it could result in a secondary accident and fire. After the input power is applied or removed, the inverter will remain hot for a couple of minutes.
Page 3 Reversing the polarity (+/-) of the terminals could damage the inverter. Only authorized personnel familiar with LG inverter should perform wiring and inspections. Always install the inverter before wiring. Otherwise, you may get an electric shock or have bodily injury.
Page 4: Important User Information
Specifications Description Provides general information and precautions for safe and optimum use of the SV-iC5 series inverter. Provides instructions on how to install the SV-iC5 inverter. Provides instructions on how to wire the SV-iC5 inverter. Describes how to connect the optional peripheral devices to the inverter.
Page 5: Table Of Contents
Basic information and precautions... 1-1 Important precautions... 1-1 Product Details... 1-2 Removal and reinstallation ... 1-3 Installation ... 2-1 Installation precautions ... 2-1 Dimensions... 2-3 Wiring ... 3-1 Terminal wiring ... 3-1 Specifications for power terminal block wiring ... 3-2 I/O terminal block specification...
Page 6 Table of Contents Control block diagram ...8-1 Frequency and Drive mode setting... 8-2 Accel/Decel setting and V/F control... 8-3 Basic Functions ...9-1 Frequency mode ... 9-1 Multi-Step frequency setting ... 9-6 Run Command setting ... 9-7 Accel/Decel time and unit setting... 9-10 V/F control ...
Page 7 Protective functions ... 12-1 12.1 Electronic Thermal ...12-1 12.2 Overload Warning and trip...12-2 12.3 Stall prevention ...12-3 12.4 Output phase loss protection ...12-5 12.5 External trip signal ...12-5 12.6 Inverter Overload ...12-6 12.7 Frequency command loss ...12-7 Troubleshooting & Maintenance ... 13-1 13.1 Protective functions...13-1 13.2...
Page 8 Table of Contents SV-iC5 viii...
Page 9: Basic Information And Precautions
(Refer to 2. Installation, P 2-1). Wiring Connect the power supply, motor and operation signals (control signals) to the terminal block. Note that incorrect connection may damage the inverter and peripheral devices (Refer to 3. Wiring, P 3-1).
Page 10: Product Details
Product Details 1.2.1 Appearance Status LED Display Window Front Cover: Remove when wiring and changing parameter setting. Bottom Cover: Remove when wiring input power and motor. 1.2.2 View without the front cover Refer to Page 1-3 for front cover removal. RUN Button NPN/PNP Select Switch...
Page 11: Removal And Reinstallation
Removal and reinstallation 1.3.1 Removal of the front cover To change parameter setting: Press the pattern with a finger slightly as 1) and push it downward as 2). Then 4-way button will appear. Use this button for parameter setting and changing the value. Removal for wiring: The method is the same as shown in 1.
Page 12 Removal for wiring input power and terminals: After removing the front cover, lift the bottom cover up to disconnect. To access control terminals: after finishing power terminal wiring, reinstall the bottom cover and then start wiring control terminals. ☞Note : Use the recommended size of the cable as indicated in this manual ONLY. Using larger size cable may lead to mis-wiring or damage the insulation.
Page 13: Installation
2. Installation Installation precautions Handle the inverter with care to prevent damage to the plastic components. Do not hold the inverter by the front cover. It may fall off. Install the inverter in a place where it is immune to vibration (5.9 m/s of ambient temperature.
Page 14 When two or more inverters are installed or a ventilation fan is mounted in inverter panel, the inverters and ventilation fan must be installed in proper positions with extreme care taken to keep the ambient temperature of the inverters below the permissible value. If they are installed in improper positions, the ambient temperature of the inverters will rise and ventilation effect will be reduced.
Page 15: Dimensions
Dimensions 0.4, 0.75 kW (1/2~1 HP) Dimension Weight (Kg) 004iC5-1 004iC5-1F 0.87 0.95 2. Installation 008iC5-1 008iC5-1F 0.89 0.97 SV-iC5...
Page 16 1.5, 2.2 kW (2~3HP) Dimension 015iC5-1 Weight 1.79 (Kg) 015iC5-1F 022iC5-1 1.94 1.85 022iC5-1F SV-iC5...
Page 17: Wiring
JOG : Jog operation RST : Fault reset 24V power for P1-P5 12V power supply for potentiometer 0-10V Analog Input terminal 0-20mA Analog Input terminal Common Terminal for P1-P5, AM, P24 Multi-function Analog output terminal ( 0 ~ 10V)
Page 18: Specifications For Power Terminal Block Wiring
DC circuitry is all exhausted. Applying input power supply to the output terminals U, V and W causes internal inverter damage. Use ring terminals with insulated caps when wiring the input power and motor wiring.
Page 19 Use the Type 3 grounding method (Ground impedance: Below 100ohm). Use the dedicated ground terminal to ground the inverter. Do not use the screw in the case or chassis, etc for grounding. Dedicated Ground Terminal ☞ Note : Remove front and bottom cover before starting grounding. ☞...
Page 20: I/O Terminal Block Specification
☞Note: Tie the control wires more than 15cm away from the control terminals. Otherwise, it interferes front cover reinstallation. ☞Note: When you use external power supply for multi-function input terminal (P1~P5), apply voltage more than 12V to activate. Wire size Torque (Nm) 22 AWG, 0.3 mm...
Page 21: Pnp/Npn Selection And Connector For Communication Option
PNP/NPN selection and connector for communication option 2. Communication Option Card Connector: Install Communication option card here. ☞Note: MODBUS RTU option card is available for SV-iC5. Refer to MODBUS RTU option card manual for more details. 1. When using P24 [NPN] 2.
Page 22 3. Wiring Notes: SV-iC5...
Page 23: Basic Configuration
The reactors must be used when the power factor is to be improved or the inverter is installed near a AC/DC Reactors large power supply system (1000kVA or more and wiring distance within 10m) To operate the inverter with high performance for...
Page 24: Recommended Mccb, Earth Leakage Circuit Breaker (Elb) And Magnetic Contactor Specification
004iC5-1, 1F 008iC5-1, 1F 015iC5-1, 1F 022iC5-1, 1F Recommendable AC/DC Reactor Model AC input fuse 004iC5-1, 1F 008iC5-1, 1F 015iC5-1, 1F 022iC5-1, 1F MCCB/ ELB(LG) ABS33b, EBS333 ABS33b, EBS333 ABS33b, EBS333 ABS33b, EBS333 Magnetic Contactor GMC-12 GMC-18 GMC-25 GMC-32 AC reactor DC reactor 2.13mH, 5.7A...
Page 25: Programming Keypad
5. Programming Keypad Keypad features Display Lit during forward run Lit during reverse run 7-Segment Displays operation status and parameter information (LED Display) Keys Used to give a run command STOP/RST STOP : Stop the operation RST : Reset faults 4-WAY BUTTON Programming keys (UP/Down/Left/Right arrow and Prog/Ent keys) Used to scroll through codes or increase parameter value...
Page 26: Alpha-Numeric View On The Led Keypad
Alpha-numeric view on the LED keypad SV-iC5...
Page 27: Moving To Other Groups
Moving to other groups There are 4 different parameter groups in SV-iC5 series as shown below. Drive group Drive group Function group 1 Function group 2 I/O (Input/Output) group Moving to other parameter groups is only available in the first code of each group as the figure shown below.
Page 28 How to move to other groups at the 1 -. The 1 -. Press the right arrow ( ) key once to go to Function group 1. -. The 1 -. Press the right arrow ( ) key once to go to Function group 2. -.
Page 29: How To Change The Codes In A Group
How to change the codes in a group Code change in Drive group Drive group Code change in Function group 1 When moving from the “F 0” to the “F 15” directly Function group 1 -. In the 1 Up ( ) key once. -.
Page 30 For changing code from any codes other than F 0 ♣ Note: Some codes will be skipped in the middle of increment ( )/decrement ( ) for code change. That is because it is programmed that some codes are intentionally left blank for future use or the codes user does not use are invisible.
Page 31: Parameter Setting Method
Parameter setting method Changing parameter value in Drive group When changing ACC time from 5.0 sec to 16.0 Drive group -. In the first code “0.0”, press the Up ( ) key once to go to the second code. -. ACC [Accel time] is displayed. -.
Page 32 -. Press the Prog/Ent ( ) key once. -. Run frequency is set to 30.0 when the blinking stops. ♣ Three digit LED display is provided in SV-iC5 Series. However, digit expansion is available using the Left( )/Right( ) key for parameter setting and monitoring. ♣...
Page 33 Changing parameter values in Function 1, 2 and I/O group When changing the parameter value of F 27 from 2 to 5 Function group 1 -. In F0, press the Prog/Ent ( ) key once. -. Check the present code number. -.
Page 34: Monitoring Of Operation Status
Monitoring of operation status Monitoring output current in Drive group -. In [0.0], continue pressing the Up ( ) or Down ( ) key until [Cur] is displayed. -. Monitoring output current is provided in this parameter. -. Press the Prog/Ent ( ) key once to check the current. -.
Page 35 How to monitor Motor rpm in Drive group when the motor is rotating in 1730 rpm. Drive group -. Present run frequency can be monitored in the first code of Function group 1. The preset frequency is 57.6Hz. -. Continue pressing the Up ( ) /Down ( ) key until rPM is displayed. -.
Page 36 How to monitor fault condition in Drive group Drive group -. This message appears when an Overcurrent fault occurs. -. Press the Prog/Ent ( ) key once. -. The run frequency at the time of fault (30.0) is displayed. -. Press the Up ( ) key once. -.
Page 37 Parameter initialize How to initialize parameters of all four groups in H93 Function group 2 -. In H0, press the Prog/Ent ( ) key once. -. Code number of H0 is displayed. -. Increase the value to 3 by pressing the Up ( ) key. -.
Page 38 5. Programming keypad Notes: SV-iC5 5-14...
Page 39: Basic Operation
6. Basic operation Frequency Setting and Basic Operation Caution : ☞ The following instructions are given based on the fact that all parameters are set to factory defaults. Results could be different if parameter values are changed. In this case, initialize parameter values (see page 10-17) back to factory defaults and follow the instructions below.
Page 40 6. Basic operation Frequency Setting via potentiometer & operating via terminals -. Apply AC input power to the inverter. -. When 0.0 appears Press the Up ( ) key four times. -. Frq is displayed. Frequency setting mode is selectable. -.
Page 41 Frequency setting via potentiometer & operating via the Run key -. Apply AC input power to the inverter. -. When 0.0 is displayed, press the Up ( ) key three times. -. drv is displayed. Operating method is selectable. -. Press the Prog/Ent ( ) key. -.
Page 42 6. Basic operation Notes: SV-iC5...
Page 43: Function List
7. Function list Parameter Min/Max display name range [Frequency 0/400 command] [Hz] [Accel time] 0/6000 [sec] [Decel time] [Drive mode] (Run/Stop mode) [Frequency mode] [Multi-Step 0/400 frequency 1] [Hz] [Multi-Step frequency 2] [Multi-Step frequency 3] Description This parameter sets the frequency that the inverter is commanded to output.
Page 44 7. Function list Parameter Min/Max display name range [Output current] [Motor RPM] [Inverter link voltage] [User display select] [Fault Display] [Direction motor rotation select] Description This parameter displays the output current to the motor. This parameter displays the number of Motor RPM.
Page 45 Parameter Min/Max display name range [Jump code] 0/60 [Forward/ Reverse run disable] [Accel pattern] [Decel pattern] [Stop mode select] [DC Brake 0/60 [Hz] start frequency] [DC Brake 0/60 [sec] wait time] [DC Brake 0/200 voltage] [DC Brake 0/60 [sec] time] [DC Brake 0/200 start voltage]...
Page 46 7. Function list Parameter Min/Max display name range [Jog 0/400 frequency] [Hz] [Max 40/400 * frequency] [Hz] [Base 30/400 frequency] [Hz] [Start 0/10 frequency] [Hz] [Frequency high/low limit select] [Frequency 0/400 high limit] [Hz] [Frequency low 0/400 limit] [Hz] [Torque Boost select] [Torque boost 0/15 [%]...
Page 47 Parameter Min/Max display name range [Torque boost in reverse direction] [V/F pattern] [User V/F 0/400 [Hz] frequency 1] [User V/F 0/100 [%] voltage 1] [User V/F 0/400 [Hz] frequency 2] [User V/F 0/100 [%] voltage 2] [User V/F 0/400 [Hz] frequency 3] [User V/F 0/100 [%]...
Page 48 7. Function list Parameter Min/Max display name range [Electronic 50/200 thermal level for 1 minute] [Electronic 50/150 thermal level for continuous] [Motor cooling method] [Overload 30/150 warning level] [Overload 0/30 [sec] warning time] [Overload trip select] [Overload trip 30/200 level] [Overload trip 0/60 [sec] time]...
Page 49 Parameter Min/Max display name range [Stall prevention select] [Stall 30/150 prevention level] Description This parameter stops accelerating during acceleration, decelerating during constant speed run and stops decelerating during deceleration. During During Deceleration constant speed Bit 2 Bit 1 This parameter sets the amount of current to activate stall prevention function during Accel, constant or Decel run.
Page 50 7. Function list Parameter Min/Max display name range [Jump code] 1/95 [Fault history 1] [Fault history 2] [Fault history 3] [Fault history 4] [Fault history 5] [Reset fault history] [Dwell F23/400 frequency] [Hz] [Dwell time] 0/10 [sec] [Skip frequency select] [Skip 0/400 frequency low...
Page 51 Parameter Min/Max display name range [Skip frequency high limit 3] S-Curve 1/100 [%] accel/decel start side S-Curve 1/100 [%] accel/decel end side [Output phase loss protection select] [Power On Start select] [Restart after fault reset] 1) Set H10 to 1 to be displayed. # H17, 18 is used when F2, F3 is set to 1 S-Curve.
Page 52 7. Function list Parameter Min/Max display name range [Speed 0/15 Search Select] [Current level 80/200 during Speed search] [P gain during 0/9999 Speed search] [I gain during 0/9999 speed search] #4.Normal acceleration has first priority. Even though #4 is selected along with other bits, Inverter starts Speed search #4. Description This parameter is active to prevent any possible fault when the inverter outputs its...
Page 53 Parameter Min/Max display Name Range [Number of 0/10 Auto Restart try] [Auto Restart 0/60 [sec] time] [Motor type 0.2/2.2 select] [Number of 2/12 motor poles] [Rated slip 0/10 frequency] [Hz] [Motor rated 1.0/20 current] [No Load 0.1/12 Motor Current] [Motor 50/100 efficiency] Description...
Page 54 7. Function list Parameter Min/Max display Name Range [Load inertia rate] [Carrier 1/15 frequency [kHz] select] [Control mode select] [Auto tuning] [Stator 0/5.0[Ω] resistance (Rs)] [Leakage 0/300.0 inductance [mH] (Lσ)] Sensorless P 0/32767 gain Sensorless I gain [PID Feedback select] 1) : Set H40 to 2 (PID control) or 3(Sensorless vector control) to display these parameters.
Page 55 Parameter Min/Max display Name Range [P gain for PID 0/999.9 controller] [Integral time 0.1/32.0 for PID [sec] controller (I gain)] Differential 0.0 /30.0 time for PID [sec] controller (D gain) F gain for PID 0/999.9 controller [PID output 0/400 frequency [Hz] limit] [Frequency...
Page 56 7. Function list Parameter Min/Max display Name Range [Monitoring item select] [Gain for 1/1000 Motor rpm display] [Software 0/10.0 version] motor 0/6000 Accel time] [sec] motor Decel time] motor 30/400 base [Hz] frequency] motor V/F pattern] motor 0/15 [%] forward torque boost] Description Multi-Step frequency 1...
Page 57 Parameter Min/Max display Name Range motor reverse torque boost] motor stall 30/150 prevention level] motor 50/200 Electronic thermal level for 1 min] motor Electronic thermal level for continuous] motor 0.1/20 rated current] [Parameter initialize] [Password 0/FFF register] [Parameter 0/FFF lock] Description This parameter is used to initialize parameters back to the factory default values.
Page 58 7. Function list Parameter Min/Max display name range [Jump code] 0/63 [Filter time 0/9999 constant for V0 input] [V0 input Min 0/10 voltage] [Frequency 0/400 corresponding [Hz] to I 2 ] [V0 input Max 0/10 voltage] [Frequency 0/400 corresponding [Hz] to I 4] [Filter time 0/9999...
Page 59 Parameter Min/Max display name range [Frequency 0/400 corresponding [Hz] to I 12] [I input max 0/20 current] [mA] [Frequency 0/400 corresponding [Hz] to I 14] [Criteria for Analog Input Signal loss] [Multi-function 0/24 input terminal P1 define] [Multi-function input terminal P2 define] [Multi-function input terminal...
Page 60 7. Function list Parameter Min/Max display name range [Input terminal status display] [Output terminal status display] [Filtering time 2/50 constant Multi-function Input terminal] [Multi-Step 0/400 frequency 4] [Hz] [Multi-Step frequency 5] [Multi-Step frequency 6] [Multi-Step frequency 7] [Multi-Accel 0/6000 time 1] [sec] [Multi-Decel time 1]...
Page 61 Parameter Min/Max display name range [Multi-Accel time 2] [Multi-Decel time 2] [Multi-Accel time 3] [Multi-Decel time 3] [Multi-Accel time 4] [Multi-Decel time 4] [Multi-Accel time 5] [Multi-Decel time 5] [Multi-Accel time 6] [Multi-Decel time 6] [Multi-Accel time 7] [Multi-Decel time 7] [Analog output item select] [Analog output...
Page 62 7. Function list Parameter Min/Max display name range [Frequency 0/400 detection [Hz] level] [Frequency detection bandwidth] [Multi-function 0/17 output terminal select] [Multi-function relay select] [Fault relay output] Description This parameter is used when I54 – [Multi- function output terminal select] or I55 – [Multi- function relay select] are set to 0-4.
Page 63 Parameter Min/Max display name range [Inverter 1/32 station number] [Baud rate] [Drive mode select after loss frequency command] [Wait time 0.1/12 after loss of [sec] frequency command] Description This parameter is set when the inverter uses RS485 communication. Select the Baud rate of the RS485 1200 bps 2400 bps 4800 bps...
Page 65: Control Block Diagram
8. Control block diagram 8. Control block diagram SV-iC5...
Page 66: Frequency And Drive Mode Setting
8. Control block diagram Frequency and Drive mode setting SV-iC5...
Page 67: Accel/Decel Setting And V/F Control
8. Control block diagram Accel/Decel setting and V/F control SV-iC5...
Page 69: Basic Functions
9. Basic Functions Frequency mode Digital Frequency setting via Keypad 1 Group LED Display Drive group Run frequency is settable in 0.0 - [Frequency Command]. Set Frq – [Frequency mode] to 0 {Frequency setting via Keypad 1}. Set the desired frequency in 0.0 and press the Prog/Ent ( ) key to enter the value into memory. The value is settable not greater than F21 –...
Page 70 Analog Frequency setting via Potentiometer (V0) on the Keypad Used to prevent fluctuations in analog input signals caused by noise Group LED Display Drive group I/O group Set Frq – [Frequency Mode] to 2. The set frequency can be monitored in 0.0- [Frequency Command]. I 1 : [Filtering time constant for V0 input] Effective for eliminating noise in the frequency setting circuit.
Page 71 Analog Frequency setting via Voltage analog input (0-10V) or potentiometer on the VR terminal Group LED Display Drive [Frequency command] group [Frequency mode] I/O group [Filtering time constant for V1 input] [V1 input minimum voltage] [Frequency corresponding to I 7] [V1 input max voltage] [Frequency corresponding to I 9] Select Frq -[Frequency Mode] to 3 {Frequency setting via V1 terminal}.
Page 72 Frequency setting via Potentiometer on the keypad + Current Analog input (0-20mA) Group LED Display Drive [Frequency Command] group [Frequency Mode] Select Frq – [Frequency Mode] to 5 {Potentiometer on the keypad and Current Analog input (0-20mA)}. Override function is provided via Main speed and Auxiliary speed adjustment. Related code: I 1 - I 5, I 11- I 15 When main speed is set via potentiometer and Auxiliary speed via 0-20mA analog input, the override function is set as below.
Page 73 Frequency setting via Potentiometer on the keypad + 0-10V input Group LED Display Drive [Frequency Command] group [Frequency Mode] Set Frq – [Frequency Mode] to 7 {Potentiometer on the keypad + 0-10V input}. Relative code: I 1 - I 5, I6 - I10 Refer to P 9-4 Frequency setting via potentiometer on the Keypad + 0-20mA input for the setting.
Page 74: Multi-Step Frequency Setting
Multi-Step frequency setting Group LED Display Drive group I/O group Select a terminal to give Multi-step frequency command among P1-P5 terminals. If terminals P3-P5 are selected for this setting, set I22-I24 to 5-7 to give Multi-step frequency command. Multi-step frequency 0 is settable using Frq – [Frequency mode] and 0.0 – [Frequency command]. Multi-step frequency 1-3 are set at St1-St3 in Drive group, while Step frequency 4-7 are set at I30-I33 in I/O group.
Page 75: Run Command Setting
Run Command setting Run via the Run and STOP/RST key Group LED Display Drive group Set drv – [Drive mode] to 0. Motor starts to accelerate by pressing the Run key while run frequency is set. Motor decelerates to stop by pressing the STOP/RST key.
Page 76 Run command setting 2 at FX and RX terminals Group LED Display Drive [Drive mode] group (Run/Stop mode) I/O group [Multi-function input terminal P1 define] [Multi-function input terminal P2 define] Set the drv to 2. Set I20 and I21 to 0 and 1 to use P1 and P2 as FX and RX terminals. FX: Run command setting.
Page 77 Power On Start select Group LED Display [Drive mode] Drive group (Run/Stop mode) Function [Power On Start select] group 2 Set H20 to 1. When AC input power is applied to the inverter with drv set to 1 or 2 {Run via control terminal} ON, motor starts acceleration.
Page 78: Accel/Decel Time And Unit Setting
Frequency Reset command Accel/Decel time and unit setting Accel/Decel time setting based on Max frequency Group LED Display Drive group Function group 1 Function group 2 Set the desired Accel/Decel time at ACC/dEC in Drive group. If H70 is set to 0 {Max frequency}, Accel/Decel time is the time that takes to reach the max freq from 0 Hz. Desired Accel/Decel time unit is settable at the H71.
Page 79 More precise time unit can be set corresponding to load characteristics as shown below. Code Parameter Name [Accel/Decel Time setting unit] Accel/Decel time based on Run frequency Group LED display Drive [Accel time] group [Decel time] Function [Frequency reference for group 2 Accel/Decel] Accel/Decel time is set at the ACC/dEC.
Page 80 Multi-Accel/Decel time setting via Multi-function terminals Group LED Display Drive group I/O group Set I22, I23, I24 to 8, 9, 10 if you want to set Multi - Accel/Decel time via P3-P5 terminals. Multi-Accel/Decel time 0 is settable at ACC and dEC. Multi-Accel/Decel time 1-7 is settable at I34-I47.
Page 81 Accel/Decel pattern setting Group LED display Function [Accel pattern] group 1 [Decel pattern] S-Curve accel/decel start side S-Curve accel/decel end side Accel/Decel pattern is settable at F2 and F3. Linear : This is a general pattern for constant torque applications S-curve : This curve allows the motor to accelerate and decelerate smoothly.
Page 82 Note that setting Frequency Ref for Accel/decel (H70) is set to Max Freq and target freq is set below Max freq. the shape of S-curve may be distorted. Accel/decel Ref Freq (H70) Target Freq Freq Accel/Decel Disable Group LED display I/O group [Multi-function input terminal P1 define]...
Page 83: V/F Control
V/F control Linear V/F operation Group LED Display Function group 1 Set F30 to 0 {Linear}. This pattern maintains a linear Volts/frequency ratio from F23 - [Start frequency] to F22- [Base frequency]. This is appropriate for constant torque applications. F22 – [Base frequency] : Inverter outputs its rated voltage at this level. Enter the motor nameplate frequency.
Page 84 User V/F pattern Group display Function [V/F pattern] group 1 [User V/F frequency 1] [User V/F voltage 4] Select F30 to 2 {User V/F}. User can adjust the Volt/Frequency ratio according to V/F pattern of specialized motors and load characteristics. In case of using a standard induction motor, if this value is set much higher than linear V/F pattern, it could result in torque shortage or motor overheating due to over-energizing.
Page 85 Manual Torque Boost Group LED display Function [Torque boost select] group 1 [Torque boost in forward direction] [Torque boost in reverse direction] Set F27 to 0 {Manual torque boost}. The values of [Torque boost in forward/reverse direction] are set separately in F28 and F29. If the boost value is set much higher than required, it may cause motor overheating due to over- energizing.
Page 86: Stop Mode Select
Stop mode select Decel to stop Group LED Display Function group 1 Set F30 to 0 {Decel to stop}. The inverter decelerates to 0Hz for the preset time. Freq. command DC brake to stop Group LED Display Function group 1 Set F30 to 1 {DC brake to stop} (See page 10-1 for more).
Page 87: Frequency Limit Setting
Frequency limit setting Frequency limit setting based on Max and start frequency Group LED display Function group 1 Max frequency: Frequency high limit except for F22 [Base frequency]. Any frequency cannot be set above [Max frequency]. Start frequency: Frequency low limit. If a frequency is set lower than this, 0.00 is automatically set. Run frequency limit based on frequency High/Low limit Group LED Display...
Page 88 Skip frequency Group LED display Function [Skip frequency select] group 2 [Skip frequency low limit 1] [Skip frequency high limit 3] Set H10 to 1. Run frequency setting is not available within the skip frequency range of H11-H16. Skip frequency is settable within the range of F21 – [Max frequency] and F23 – [Start frequency]. command When it is desired to avoid resonance attributable to the natural frequency of a mechanical system, these parameters allow resonant frequencies to be skipped.
Page 89: Advanced Functions
Advanced functions 10.1 DC brake Stop mode via DC brake Group LED Display Function group 1 Set F4 - [Stop mode select] to 1. F 8 : The frequency at which the DC brake will become active. F 9 : Inverter will wait for this time after F8 - [DC Brake start frequency] before applying F10 - [DC Brake voltage].
Page 90 Starting DC brake Group LED Display Function [DC Brake start voltage] group 1 [DC Brake start time] F12 : It sets the level as a percent of H33 – [Motor rated current]. F13 : Motor accelerates after DC voltage is applied for the set time. ☞...
Page 91: Jog Operation
10.2 Jog operation Group LED display Function group 1 I/O group Set the desired jog frequency in F20. Select the terminal among the Multi-function input terminal P1 thru P5 to use for this setting. If P3 is set for Jog operation, set I22 to 4 {Jog}. Jog frequency can be set within the range of F21 - [Max frequency] and F22 –...
Page 92: Up-Down Operation
10.3 Up-Down operation Group LED display I/O group Select terminals for Up-Down operation among P1 thru P5. If P4 and P5 are selected, set I23 and I24 to 15 {Frequency Up command} and 16 {Frequency Down command}, respectively. Frequency P4 (UP) P5(DOWN) command(FX) 10.4...
Page 93: Dwell Operation
Frequency P5 (3-Wire) If both 3-Wire and Up-Down operation are selected, the former will be ignored. The bandwidth of pulse (t) should be above 50msec. Speed search operation is valid even in the case of LVT (low voltage trip) following instant power failure. 10.5 Dwell operation Group...
Page 94 Example Rated frequency = 60Hz Rated RPM = 1740rpm Number of motor poles= 4  1740 −   10.6 Slip compensation Group LED Display Function group 2 Set H40 – [Control mode select] to 1 {Slip compensation}. This function enables the motor to run in constant speed by compensating inherent slip in an induction motor. If motor shaft speed decreases significantly under heavy loads then this value should be increased.
Page 95: Slip Compensation
H32 : Enter the slip frequency based on the following formula and motor nameplate. ×   −     Where, = Rated slip frequency = Rated frequency = Motor nameplate RPM = Number of Motor poles Example Rated frequency= 60Hz Rated motor RPM= 1740rpm Motor pole number= 4...
Page 96: Pid Control
10.7 PID Control Group LED Display Function group 2 I20~24 Set H40 to 2 {PID Feedback control}. Output frequency of the inverter is controlled by PID control for use as constant control of flow, pressure or temperature. H50 : Select the feedback type of PID controller . [PID feedback H51 : Set the percentage of output to error.
Page 97 10. Advanced functions PID control block diagram SV-iC5 10-9...
Page 98: Auto Tuning
10.8 Auto tuning Group LED Display Function group 2 Automatic measuring of the motor parameters is provided. The measured motor parameters in H41 can be used in Auto Torque Boost and Sensorless Vector Control. ☞ Caution : Auto tuning should be executed after stopping the motor. Motor shaft must not run by the load during H41 – [Auto tuning].
Page 99: Sensorless Vector Control
10.9 Sensorless vector control Group LED Display Function group 2 If H40 – [Control mode select] is set to 3, Sensorless vector control will become active. ☞ Caution : Motor parameters should be measured for high performance. It is highly recommended H41 – [Auto tuning] be done prior to proceeding operation via Sensorless vector control.
Page 100: Energy-Saving Operation
Factory default of motor parameters (Function group 2) H30-Motor H32-Rated slip rating freq [kW] [Hz] 0.75 10.10 Energy-saving operation Group LED Display Function group 1 Set the amount of output voltage to be reduced in F40. Set as the percent of Max output voltage. For fan or pump applications, energy consumption can be dramatically reduced by decreasing the output voltage when light or no load is connected.
Page 101 The following table shows 4 types of Speed search selection. [Speed search select] H23 : It limits the current during Speed search. Set as the percent of H33 – [Motor rated current]. H24, H25 : Speed search is activated via PI control. Adjust P gain and I gain corresponding to the load characteristics.
Page 102 EX) Speed search during Instant Power Failure restart Input voltage Frequency Voltage Current Multi-function output or Relay When the input power is cut off due to instant power failure, the inverter outputs Low voltage trip (LV) to hold the output. When the power is restored, the inverter outputs the frequency before the low voltage trip and the voltage is increased due to PI control.
Page 103: Auto Restart Try
10.12 Auto restart try Group LED Display Function group 2 This parameter sets the number of times auto restart is activated in H26. It is used to prevent the system down caused by internal protection function activated by the causes such as noise.
Page 104: Second Motor Operation
Carrier frequency select Group LED Display Function group 2 This parameter affects the sound of the inverter during operation. If carrier frequency set higher 10.13 Second motor operation Group LED Display Function group 2 I/O group Select the terminal among Multi-function input P1 thru P5 for second motor operation. If using the terminal P5 for second motor operation, set I24 to 12.
Page 105: Parameter Initialize & Lock
Used when an inverter operates 2 motors connected to two different types of the loads. motor operation does not run 2 motors at the same time. As the figure below, when using two motors with an inverter by exchanging them, different values can be set for the 2 Multi-function input terminal and parameters set in H81-H90.
Page 106 Password Register Group LED Display Function [Password Register] group 2 [Parameter lock] This parameter creates password for H95 – [Parameter lock]. Valid password is Hex decimal value (0-9, A, B, C, D, E, F). ☞ Caution: Do not forget the registered password. It is also used when unlocking the parameters. Factory default password is 0.
Page 107 Parameter Lock Group LED Display Function [Parameter lock] group 2 [Password Register] This parameter is used to lock the user-set parameters using the password. See the table below to lock the user-set parameter via the H94 – [Password Register]. Step Go to H95 –...
Page 108 10. Advanced functions Notes: SV-iC5 10-20...
Page 109: Monitoring
Monitoring 11.1 Operating status monitoring Output current Group LED Display Drive group Inverter output current can be monitored in Cur. Motor RPM Group LED Display Drive group Function group 2 Motor rpm can be monitored in rPM. When H40 is set to 0 {V/F control} or 1 {PID control}, the Inverter output frequency (f) is displayed in RPM using the formula below.
Page 110 User display select Group LED Display Drive group [User display select] Function [Monitoring item select] group 2 The selected item in H73- [Monitoring item select] can be monitored in vOL- [User display select]. H73 : Select one of the desired item numbers. [Monitoring item Enter motor efficiency indicated on motor nameplate to H36 to display correct torque Power on display...
Page 111: Monitoring The I/O Terminal
11.2 Monitoring the I/O terminal Input terminal status monitoring Group LED Display I/O group Active input terminal status (ON/OFF) can be monitored in I25. The following is displayed when P1, P3, P4 are ON and P2, P5 are OFF. Output terminal status monitoring Group LED Display I/O group...
Page 112: Monitoring Fault Condition
11.3 Monitoring fault condition Monitoring fault display Group LED Display Drive group The kind of fault occurred during operation is displayed in nOn. Up to 3 kinds of faults can be monitored. This parameter gives information on fault types and the operating status at the time of the fault. Refer to 1.6 How to monitor operation.
Page 113: Analog Output
11.4 Analog Output Group LED Display I/O group Output item and the level from the AM terminal are selectable and adjustable. I50 : The selected item will be output to Analog output terminal (AM). Analog output item select I51 : If you want to use Analog output value as a gauge input , the value can be adjustable corresponding to various gauge specifications.
Page 114: Multi-Function Output Terminal (Mo) And Relay (30Ac)
11.5 Multi-function output terminal (MO) and Relay (30AC) Group Parameter Name display I/O group [Fault relay output] Select the desired item to be output via MO terminal and relay (30AC). [Multi-function FDT-1 output terminal select] FDT-2 FDT-3 [Multi-function relay select] FDT-4 FDT-5 Overload {OL}...
Page 115 I56: When 17 {Fault display} is selected in I54 and I55, Multi-function output terminal and relay will be activated with the value set in I56. 0 : FDT-1 Check whether the output frequency of the inverter matches the user-setting frequency. Active condition: Absolute value (preset frequency - output frequency) <= Frequency Detection Bandwidth/2 Group...
Page 116 2 : FDT-3 It activates when run frequency meets the following condition. Active condition: Absolute value (FDT level - run frequency) <= FDT Bandwidth/2 Group LED Display I/O group It cannot be set above F21- [Max frequency]. When setting I52 and I53 to 30.0Hz and 10.0 Hz, respectively 3 : FDT-4 Become active when run frequency meets the following condition.
Page 117 4 : FDT-5 Activated as B contact contrast to FDT-4. Active condition Group LED Display I/O group It cannot be set above F21- [Max Frequency]. When setting I52, I53 to 30.0 Hz and 10.0Hz, respectively 5 : Overload{OL} Refer to Page 12-2 Overload Warning and trip 6 : Inverter Overload{IOL} Refer to Page 12-6 Inverter Overload 7 : Motor Stall {STALL}...
Page 118 11: Command Loss Become active when frequency command is lost. 12: During run Become active when run command is given and the inverter generates output voltage. 13: During stop Activated during stop. 14: During constant run Activated during nominal operation. 15: During speed searching Refer to Page 10-12 Speed search operation.
Page 119: Protective Functions
Protective functions 12.1 Electronic Thermal Group LED display Function group Select F50 – [Electronic thermal select] to 1. It activates when the motor is overheated (time-inverse). If current greater than set in F51 flows, inverter output is turned off for the preset time in F51- [Electronic thermal level for 1 minute]. F51: Enter the value of max current that is capable of flowing to the motor continuously for one minute.
Page 120: Overload Warning And Trip
Current [%] 12.2 Overload Warning and trip Overload warning Group LED Display Function group 1 I/O group Select one output terminal for this function between MO and 30AC. If selecting MO as output terminal, set I54 to 5 {Overload : OL}. F54 : Set the value as a percent of motor rated current.
Page 121: Stall Prevention
Overload trip Group LED Display Function group 1 Set F56 to 1. Inverter output is turned off when motor is overloaded. Inverter output is turned off when excessive current flows to the motor for F58 – [Overload trip time]. 12.3 Stall prevention Group LED Display Function...
Page 122 For example, set F59 to 3 to make stall prevention active during Acceleration and constant run. When stall prevention is executed during acceleration or deceleration, Accel/Decel time may take longer than the user-setting time. When stall prevention is activated during constant run, t1, t2 executed in accordance with the value set in ACC - [Accel time] and dEC - [Decel time].
Page 123: Output Phase Loss Protection
12.4 Output phase loss protection Group LED display Function group 2 Set H19 value to 1. This function turns off the inverter output in the event of more than one phase loss among U, V and W output. ☞ Caution : Set H33- [Motor rated current] correctly.
Page 124: Inverter Overload
Frequency P4(A contact) P5(B contact) command 12.6 Inverter Overload Inverter overload prevention function is activated when the current above inverter rated current flows. Multi-function output terminal (MO) or Multi-function relay (30AC) is used as the alarm signal output during inverter overload trip. Group LED display I/O group...
Page 125: Frequency Command Loss
12.7 Frequency command loss Group LED display I/O group Select the Drive mode when frequency reference set via V1 and I or (V1+I) input terminal or communication option is lost. I16 : This is to set the criteria for analog input signal loss when frequency reference is given by V1, I, V1+I or Communication option.
Page 126 [Drive mode select after frequency command] I54, I55: Multi-function output terminal (MO) or Multi-function relay output (30AC) is used to output information on loss of frequency command to external sequence. For example, when I62 is set to 2, I63 to 5.0 sec and I54 to 11, respectively, freq Freq command...
Page 127: Troubleshooting & Maintenance
Over voltage 400 V when the motor decelerates. This fault can also occur due to a surge voltage generated at the power supply system. The inverter turns off its output if the DC voltage is below 180V because insufficient Low voltage torque or overheating of the motor can occur when the input voltage of the inverter drops.
Page 128 Keypad Protective display functions Inverter This fault message is displayed when an error occurs in the control circuitry of the hardware fault inverter. Communication This fault message is displayed when the inverter cannot communicate with the keypad. Error Cooling This fault message is displayed when a fault condition occurs in the inverter cooling fan. fault Used for the emergency stop of the inverter.
Page 129: Protective Functions
13.2 Fault Remedy Protective functions Caution: ☞ When an overcurrent fault occurs, operation must be started after the cause is removed to avoid damage to IGBT inside the inverter. Overcurrent Accel/Decel time is too short compared to the GD of the load. Load is greater than the inverter rating Inverter output is issued when the motor is free running.
Page 130 Protective functions The terminal which is set to “18 (External fault-A)” or “19 (External fault-B)” in I20-I24 in I/O group is ON. External fault A contact input External fault B contact input No frequency command is applied to V1 and Operating method when the frequency...
Page 131: Precautions For Maintenance And Inspection
Check the voltage between terminal P or P1 and N using a tester before proceeding. SV-iC5 series inverter has ESD (Electrostatic Discharge) sensitive components. Take protective measures against ESD before touching them for inspection or installation.
Page 132 13. Troubleshooting & Maintenance Notes: SV-iC5 13-6...
Page 133: Specifications
Output collector terminal Indicates the maximum applicable motor capacity when using a 4-pole LG Standard motor. Rated capacity is based on 220V. Max settable freq is 300Hz when H30 is set to 3 “Sensorless Vector Control”. Max output voltage will not be greater than the input voltage. Output voltage less than the input voltage can be programmed.
Page 134 Multi-function relay terminal Analog output Protective functions Over-voltage, Under-voltage, Over-current, Ground fault current detection, Over-temperature of inverter Inverter Trip and motor, Output phase open, Overload, Communication error, Loss of frequency command, H/W fault Alarm Stall prevention, Overload Conditions Momentary Less than 15 msec : Continuous operation power loss More than 15 msec : Auto Restart enable Environment...
Page 135: Temperature Derating Information
14.2 Temperature Derating Information Load current VS Carrier frequency ▶ For 0.4kW, 0.8kW, 1.5kW inverter Load Current 100% 1kHz Carrier freq. ☞ Note : 1. The above graph is applied when inverter is in use within the permissible ambient temp. If the unit is installed in a panel, install it where heat dissipation is properly done to keep the panel ambient temp within permissible range.
Page 137: Declaration Of Conformity
EN 61000-4-5:1995 ENV 50141:1993(EN 61000-4-6:1996) EN 61000-4-8:1993 EN 61000-4-11:1994 Inverter (Power Conversion Equipment) SV - iC5 Series LG Industrial Systems Co., Ltd. LG International (Deutschland) GmbH Lyoner Strasse 15, 60528, Frankfurt am Main, Germany LG Industrial Systems Co., Ltd. 181, Samsung-Ri, Mokchon-Eup,...
Page 138 TECHNICAL STANDARDS APPLIED The standards applied in order to comply with the essential requirements of the Directives 73/23/EEC "Electrical material intended to be used with certain limits of voltage" and 89/336/EEC "Electromagnetic Compatibility" are the following ones: • EN 50178:1998 •...
Page 139 EMC INSTALLATION GUIDE LG inverters are tested to meet Electromagnetic Compatibility (EMC) Directive 89/336/EEC and Low Voltage (LV) Directive 73/23/EEC using a technical construction file. However, Conformity of the inverter with CE EMC requirements does not guarantee an entire machine installation complies with CE EMC requirements. Many factors can influence total machine installation compliance.
Page 140 Revision History Revision First Edition S/W version update Date Remarks 2002. 12 S/W Version: 1.3 2003. 10 S/W Version: 1.5...
Page 141 LG Industrial Systems Co., Ltd. LGIS constantly endeavors to improve its product so that information in this manual is subject to change without notice. Visit Our Website: http://www.lgis.com/ June, 2003 Publication #: 10310000387...

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