Trips, Sub-Trip Numbers - Emerson Unidrive M400 Series User Manual
Variable speed ac drive for induction motors
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Also See for Unidrive M400 Series:
- User manual (198 pages) ,
- Quick start quide (36 pages) ,
- Quick start manual (16 pages)
Table of Contents
Safety
Product
Mechanical
information
information
installation
12.4
Trips, Sub-trip numbers
Table 12-2 Trip indications
Trip
Diagnosis
An Input 1 Loss
Analog input 1 current loss
The An Input 1 Loss trip indicates that a current loss was detected in current mode on Analog input 1 (Terminal 2). In
4-20 mA and 20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommended actions:
•
Check control wiring is correct
28
•
Check control wiring is undamaged
•
Check the Analog Input 1 Mode (07.007)
•
Current signal is present and greater than 3 mA
An Input 1 OI
Analog input 1 over-current
189
Current input on analog input 1 exceeds 24mA.
Analog input 2 current loss
An Input 2 Loss
The An Input 2 Loss trip indicates that a current loss was detected in current mode on Analog input 2 (Terminal 5). In
4-20 mA and 20-4 mA modes loss of input is detected if the current falls below 3 mA.
Recommend actions:
29
•
Check control wiring is correct
•
Check control wiring is undamaged
•
Check the Analog Input 2 Mode (07.011)
•
Current signal is present and greater than 3 mA
Analog input 2 over-current
An Input 2 OI
190
Current input on analog input 2 exceeds 24 mA.
Autotune 1
Required speed could not be reached
The drive has tripped during an autotune. The cause of the trip can be identified from the sub-trip number.
Sub-trip
11
Recommended actions:
•
Ensure the motor is free to turn i.e. mechanical brake is released
•
Ensure Mechanical Load Test Level (05.021) is set correctly
Autotune 3
Measured inertia has exceeded the parameter range (RFC-A mode only)
The drive has tripped during a rotating autotune or mechanical load measurement test. The cause of the trip can be
identified from the associated sub-trip number.
Sub-trip
13
Recommended actions:
•
Check motor cable wiring is correct
Autotune Stopped
Autotune test stopped before completion
The drive was prevented from completing an autotune test, because either the drive enable or the drive run were removed.
Recommended actions:
18
•
Check the drive enable signal (Terminal 31 & 34 on size 1 to 4, or terminal 31 & 35 on size 5 to 9) were active during the
autotune.
•
Check the run command was active in Digital input 3 or 4 state (Pr 08.003 or Pr 08.004) during the autotune.
Brake R Too Hot
Braking resistor overload timed out (I
The Brake R Too Hot trip indicates that braking resistor overload has timed out. The value in Braking Resistor Thermal
Accumulator (10.039) is calculated using Braking Resistor Rated Power (10.030), Braking Resistor Thermal Time Constant
(10.031) and Braking Resistor Resistance (10.061). The Brake R too Hot trip is initiated when the Braking Resistor Thermal
Accumulator (10.039) reaches 100 %.
19
Recommended actions:
•
Ensure the values entered in Pr 10.030, Pr 10.031 and Pr 10.061 are correct.
•
Check resistor value and power rating
•
If an external thermal protection device is being used and the braking resistor software overload protection is not
required, set Pr 10.030, Pr 10.031 or Pr 10.061 to 0 to disable the trip.
Unidrive M400 Control User Guide
Issue Number: 1
Electrical
Getting
Basic
installation
started
parameters
2
The motor did not reach the required speed during rotating autotune or mechanical load measurement
1
Measured inertia has exceeded the parameter range during a mechanical load measurement
3
The mechanical load test has been unable to identify the motor inertia
Running
NV Media Card
Optimization
the motor
Operation
Reason
Reason
2
t)
Onboard
Advanced
Diagnostics
PLC
parameters
UL
information
139
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