ABB ACH 400 User Manual page 45

With electronic bypass
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Chapter 4 – Start-up Procedure
4-6
CAUTION: Check motor rotation direction as soon as the motor begins to
move. If motor does not rotate in the correct direction, shut down the drive,
disconnect and lock out power to the drive and wait five minutes. Swap any
two motor output wires at Terminals T1, T2, and T3. Incorrect motor rotation
direction may cause equipment damage.
5. Slowly increase the output frequency by pressing the UP ARROW key.
Verify that motor speed varies as frequency varies.
6. Increase the speed to 60 Hz or the highest safe operating speed.
7. Measure the output current in all three phases. The current should be
balanced, and should not exceed the motor or drive rating.
8. Press the OFF key on the ACH 400 control panel. The motor should
stop.
CAUTION: Check the motor rotation direction in bypass.
Press the OFF key and then the Bypass Select key on the bypass keypad. Press
the Hand key and then quickly press the OFF key to "bump" the motor. If the
motor turns in the wrong direction, swap any two input power leads at the
disconnect switch. Do not swap the motor leads.
If the drive does not operate according to these steps, refer to the ACH 400
User's Manual.
If the drive operates according to these steps, your ACH 400 with Electronic
Bypass is ready to use with preset or modified macro settings. Refer to the
ACH 400 User's Manual for programming instructions.
ACH 400 with Electronic Bypass User's Manual

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