Installing Regulator Board P/N 413338-5Au In 25-50 Hp Drives - Reliance electric GV3000 Installation Instructions Manual

3.0 INSTALLING REGULATOR BOARD P/N 413338-5AU
IN 25-50 HP DRIVES
ONLY QUALIFIED PERSONNEL FAMILIAR WITH THE CONSTRUCTION AND OPERATION OF THIS
EQUIPMENT AND THE HAZARDS INVOLVED SHOULD INSTALL, ADJUST, OPERATE, AND/OR
SERVICE THIS EQUIPMENT. READ AND UNDERSTAND THIS INSTRUCTION MANUALIN ITS
ENTIRETY BEFORE PROCEEDING. FAILURE TO OBSERVETHIS PRECAUTION COULD RESULT IN
SEVERE BODILY INJURY OR LOSSOF LIFE.
THE DRIVEIS AT LINE VOLTAGE WHEN CONNECTED TO INCOMING A-C POWER. DISCONNECT,
TAG, AND LOCKOUT ALL INCOMING POWER TO THE DRIVE BEFORE PERFORMING THE
FOLLOWING PROCEDURE. FAILURE TO OBSERVETHIS PRECAUTION COULD RESULTIN SEVERE
BODILY INJURY OR LOSSOF LIFE.
D-C BUS CAPACITORS RETAIN HAZARDOUS VOLTAGES AFTER INPUT POWER HAS BEEN
DISCONNECTED.AFTER DISCONNECTING INPUT POWER, WAIT FIVE (5) MINUTES FOR THE D-C
BUS CAPACITORS TO DISCHARGE AND THEN CHECK THE VOLTAGE WITH A VOLTMETER TO
ENSURE THE D-C BUS CAPACITORS ARE DISCHARGED BEFORE TOUCHING ANY INTERNAL
COMPONENTS.FAILURE TO OBSERVE THIS PRECAUTION COULD RESULT IN SEVERE BODILY
INJURY OR LOSSOF LIFE.
Usethe following procedure to replace the Regulator board (P/N 413338-5AU, individually, or as part
of Upgrade Kit P/N K-690-AV) in 25 to 50 HP GV3000drives. Refer to figure 2.6 in instruction manual
D2-3324 as you perform the procedure.
Remove the Keypad Support Bracketfrom the Drive
Step 1. Disconnect, tag, and lockout power to the drive.
Step 2. Wait five (5) minutes for the D-C bus capacitors to discharge.
Step 3. Remove the coverfrom the drive by loosening the six (6) cover retaining screws.
Step 4. Using a voltmeter, verify that there is no voltage at the drive's A-C input power terminals
(1L1, 1L2, 1L3).
Step 5. Removethe two (2) screwsfrom the top of the hinged panel on which the keypad support
bracket is mounted. Then tilt the mounting panel forward out of the drive chassis.
Step 6. Check the D-C bus potential (+, — terminals) with a voltmeter as described in section 9.3 of
D2-3324 to ensure that the D-C bus capacitors are discharged.
Caution: The drive contains printed circuit boards that are static-sensitive. An anti-static wrist band should
be worn by any person who touchesthe drive's components, connectors, or leads. Failure to observethis
precaution may result in erratic machine operation and damage to, or destruction of, equipment.
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