GE Grid Solutions
D25
User's Manual
GE Information
994-0081-3.00-21
117
Module Replacement,
Continued
Disassembling
the D25
You will need to disassemble the unit if it has sustained damage through
physical or environmental factors, or if a module or option has to be
interchanged to change functionality.
•
Always disconnect the power source before servicing and removing components.
•
Use the puller (located inside of D25 front cover, on the edge of the Indicator
Switch Card) to remove and replace modules.
Always use the puller provided for removing and replacing all modules.
The high voltage area of the D25 High Current KE Digital Output Module is in close
proximity to the D25 chassis. Ensure that relay contacts are de-energized before
removing the D25 HCKE Digital Output Module.
Background on
Connectors
•
Connectors for field wiring the Digital Input, DC Analog input cards, and Digital
output cards that use compression type connectors are permanently installed into
the rear panel of the D25.
•
Some Digital output modules have DB-25 connectors that are permanently
attached to the module, not the rear panel.
•
Connectors on the CT/PT transformers are permanently installed into the rear
panel.
•
CT/PT primaries are connected to the connectors by quick connect type of
connectors.
Procedure:
Disassembly
How to remove the front panel and expose the D25 WESDAC module (Main
Board):
Step
Action
Comment
Lower the Front Panel
1
Loosen the four (4) captive
screws visible on the front
panel
The front panel is hinged on the
metal-formed hinges at the lower
front edge of the D25.
2
Lower the panel
This will expose the inner cavity
of the D25
Disconnect Indicator Switch Card
3
Locate the connectors at
either end of the ribbon cable.
4
Push open the connector clips,
and gently pull to remove the
male connector at the
WESDAC end of the cable
Summary of Contents for D25
Page 170: ......
