ABB ACH550 series User Manual page 26

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13. Press the DOWN arrow on the drive control panel until the speed and frequency
indications return to "0.0."
14. Press the OFF key on the drive control panel. Note that the bottom line of the drive
contol panel display indicates "Off."
If the ACH550 Drive and E-Clipse Bypass operate according to these steps, and you
have familiarized yourself with their operation, disconnect and lock out power to
prepare for the next test.
WARNING! Wait at least five minutes after disconnecting power from the drive
before you attempt to service the drive. Bus capacitors in the intermediate DC
circuit must discharge before servicing the drive. Using a meter rated for 1000
VDC, check for zero volts at:
• Terminals BRK+ to GND and BRK- to GND (frame size R1/R2)
• Terminals UC+ and UC- (frame size R3...R8).
If the drive does not operate according to these steps, refer to the ACH550-UH
User's Manual.
Installation
E-Clipse Bypass Configurations for ACH550 Drives