3–6 Disassembly and Access Procedures
Publication 1336 IMPACT-6.2 – March 1998
Removal
!
ATTENTION: Disconnect and lock out power from
the drive before disassembling the drive. Failure to
disconnect power may result in death or serious injury.
Verify bus voltage by measuring the voltage between
+DC and –DC on terminal block TB1. Do not attempt
to service the drive until the bus voltage has discharged
to zero volts.
!
ATTENTION: Wear a wrist-type grounding strap
when servicing 1336 IMPACT drives. Failure to
protect drive components against ESD may damage
drive components. Refer to Electrostatic Discharge
Precautions at the beginning of this chapter.
1. Remove power from the drive.
2. Loosen the captive thumb screw fastening the Enclosure cover to
the bottom of the Enclosure frame.
3. Pull the bottom of the Enclosure cover outward to clear the frame
and then lift the cover upward to remove the cover.
4. Check for zero volts at TB1 terminals +DC and –DC.
5. Check for absence of control voltage at:
• TB10
• TB11
• L Option Board (if used)
6. Remove the customer-supplied wiring from the drive.
7. Remove the screws from the Enclosure top panel. Note the tab
slots in the top panel holding the side panels into place.
8. Lift the Enclosure side panels out of the Enclosure bottom-panel
tab slots to remove the side panels.
Installation
Install the Enclosure in reverse order of removal.
!
ATTENTION: Replace all guards and insulators
before applying power to the drive. Failure to replace
guards may result in death or serious injury.
AB Spares
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