Table of Contents
3. Operation
3.1 Inspection and Preparation Before Operation
Check the following before operation:
1. Check that the connections are correct.
In particular, check that the power supply is not connected to any of
the U, V, or W output terminals and that the ground terminal is
securely grounded.
2. Check for short circuits and ground faults between the terminals
and sections under power.
3. Check for loose terminals, connectors, or screws.
4. Check that the motor is disconnected from the mechanical
equipment.
5. Turn off switches before turning on power to ensure that the drive
will not start or operate abnormally at power-on.
6. Check the following after power-on:
a. No alarm message is displayed on the keypad panel (see Figure
3-1-2).
b. The fan inside the drive is rotating. (For drives with 2Hp or
more.)
WARNING
Be sure to have the drive cover in place before turning on the power
(closed). Never remove the cover while power is applied to the drive.
To ensure safety, do not operate switches with wet hands. Electric
shock may result.
3.2 Operation Method
There are various methods of operation. Select a method of
operation according to the operating requirements and specifica-
tions; refer to Section 4-2 Operating the Keypad Panel, and
Chapter 5 Function Selection. Table 3-2-1 lists general methods
of operation.
3.3 Trial Run
Once inspection is completed (see Section 3-1), proceed with a
trial run. The motor is initially disconnected and the drive is
operated (factory setting) using the keypad panel.
1. Turn power on and confirm that the LED monitor display 0.00
Hz is blinking.
2. Set the frequency to about 5 Hz using
3. To start the run, press
key (for reverse rotation). To stop, press
frequency increases for zero to the set point.
Connect motor and repeat steps 1-3
4. Check the following items:
a. Is the direction of rotation correct?
b. Is the rotation smooth (no buzzing or abnormal vibration)?
c. Are acceleration and deceleration smooth?
5. If no abnormality is detected, increase the frequency and
check the above items again. If the results of the trial run are
normal, start a formal run.
Data subject to change without notice 7/07. © 2007 GE Drives
key.
key (for forward rotation) or
FWD
key. Verify
STOP
L1/R, L2/S, L3/T,
power
Fig. 3-1-1 Drive connection
Fig. 3-1-2 Display on keypad panel at power-on
Operation
Frequency Setting
Command
Operation
Keys on keypad panel
using keypad
panel
Operation
using external
terminal
signals
Frequency Setting POT(VR),
analog voltage, analog current
Notes: If an error is detected in the drive or
REV
motor's operation, immediately stop and
attempt to determine the cause of error by
referring to Chapter 7 Troubleshooting.
Since voltage is still present at the main circuit
terminals (L1/R, L2/S, L3/T) and auxiliary
control power terminals (R0, T0), even when
the output from the drive is terminated, do not
touch the terminals. The smoothing capacitor
in the drive is charged after the power is
turned off and it is not discharged immedi-
ately. Before touching an electric circuit,
confirm that the charge lamp is off or use a
multimeter to check that the volatge has
decreased below 25 VDC for low voltage at
the DC (P-N) terminals.
3-1
Drive
U, V,
W
motor
Operation
Command
FWD
REV
STOP
Input from
Terminals
FWD-CM and
REV-CM
- Quick Links:
- Alarm Information
- Function Selection List
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