168
GE INFORMATION
D400 SUBSTATION GATEWAY INSTRUCTION MANUAL
CHAPTER 13: SERVICING THE D400
If the D400 contains dual power supplies, you can replace one power supply unit without
having to power down the D400, as long as the other power supply unit is operational.
NOTE
The D400 power supplies do not contain user replaceable fuses. The entire power supply
module must be replaced if the fuse has failed.
Figure 69: D400 Power Supply Unit
Before You Remove
the Power Supply…
Note the following items before you begin power supply replacement.
•
Ensure the other power supply unit (if available) is functioning (the green
Power
LED is
illuminated) to ensure that the D400 doesn’t power down during replacement.
•
Make sure that the unit is wired in accordance with “Power connections” on page 82.
Dangerous voltages may be present after the power supply chassis has been removed
from the D400. Wait 10 seconds for stored energy to dissipate.
To replace D400
power supply units
1.
If only a single power supply unit is installed (in Slot 1), power down the D400. If dual
power supplies are installed (in Slot 1 and Slot 2), ensure that the secondary unit is
functioning.
2.
Hand-loosen the two thumb screws on the front panel of the power supply unit.
3.
Pulling on the handle, slide the power supply unit out of the chassis.
4.
Slide the new power supply unit into the chassis.
5.
While pressing the power supply module panel against the chassis frame, hand-
tighten the two thumb screws (applying a torque of no more than 5.8 in-lb [0.66 Nm])
on the front panel.
6.
Verify that the
Power
LED is illuminated on the replaced power supply unit.
ower Supply
Slot 1
Power Supply
Slot 2
Summary of Contents for Multilin D400
Page 12: ...12 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL PRODUCT SUPPORT ...
Page 28: ...28 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL CHAPTER 1 BEFORE YOU START ...
Page 34: ...34 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL CHAPTER 2 INSTALLING THE D400 ...
Page 88: ...88 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL CHAPTER 5 POWERING UP THE D400 ...
Page 174: ...174 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL APPENDIX A STANDARDS PROTECTION ...
Page 184: ...184 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL APPENDIX C LIST OF ACRONYMS ...
Page 192: ...192 GE INFORMATION D400 SUBSTATION GATEWAY INSTRUCTION MANUAL INDEX ...