Manual

Instructions
1336 PLUS, PLUS II, FORCE  & IMPACT 
Common Bus Precharge Board Replacement
Frames C - H
This publication will guide you in replacing the Common Bus Precharge Board in
1336 PLUS, PLUS II, FORCE and IMPACT Drives.
Board Removal
Refer to Figure 1 for component locations.
Important: Label all connections and wires going to the Precharge Board to guard
against incorrect wiring during re-assembly.
1. Remove power from the drive and open the enclosure (if equipped).
2. Check for zero volts between the drive +DC and –DC terminals of TB1.
3. Use the following table to verify the absence of control voltage.
4. Disconnect the following from the Precharge Board:
❏ J1 Connector
❏ J2 Connector
❏ J3 Connector
❏ TB1 Connector
!
ATTENTION: This drive contains ESD (Electrostatic Discharge)
sensitive parts and assemblies. Static control precautions are required
when installing, testing, servicing or repairing this assembly.
Component damage may result if ESD control procedures are not
followed. If you are not familiar with static control procedures,
reference A-B publication 8000-4.5.2, “Guarding Against Electrostatic
Damage” or any other applicable ESD protection handbook.
!
ATTENTION: To avoid a shock hazard, assure that all power to the
drive has been removed before proceeding. In addition, verify that the
DC bus has discharged by measuring across the “+DC” and “–DC”
terminals of TB1 with a voltmeter. The voltage should be 0.0VDC.
Drive Option (if applicable) Verify 0.0 Volts at . . .
FORCE PLC Communication Adapter Board
• TB1 on the Precharge Board
• TB10 & TB11 on Main Control Board
• TB20 & TB21 on Adapter Board
Standard Adapter Board
• TB1 on the Pre-charge Board
• TB10 & TB11 on Main Control Board
• TB5, TB6 & TB7 on Adapter Board
• TB3 on L-Option Board
ControlNet Adapter Board
• TB1 on the Pre-charge Board
• TB10 & TB11 on Main Control Board
• TB20 & TB21 on Adapter Board
IMPACT
• TB1 on the Pre-charge Board
• TB10 & TB11 on Main Control Board
• TB3 on L-Option Board
PLUS/
PLUS II
• TB1 on the Pre-charge Board
• TB2 on the Main Control Board
• TB3 on the L-Option Board
1336 FORCE & 1336 IMPACT are trademarks of Rockwell Automation.