Vertiv™ NetSure™ 7100 Series -48 VDC Power System User Manual
5.6.12 Circuit Card Replacement Procedures
WARNING! Circuit cards used in this power system contain static-sensitive devices. Read the Static Warning at the front of
this document before performing any of the following procedures.
General
The following circuit card replacement procedures can be performed with the system operating.
Refer to Figure 3.1 for circuit card locations.
CAUTION! When performing any step in these procedures that requires removal or installation of hardware, use caution to
ensure no hardware is dropped and left inside the cabinet; otherwise service interruption or equipment damage may occur.
NOTE!
When performing any step in these procedures that requires removal of existing hardware, retain all hardware for use
in subsequent steps.
System Interface Circuit Card Replacement
Procedure
1. Performing this procedure may activate external alarms. Do one of the following. If possible, disable these alarms. If these
alarms cannot be easily disabled, notify the appropriate personnel to disregard any future alarms associated with this system
while the procedure is being performed.
DANGER! Performing the next steps exposes service personnel to battery potential. Exercise extreme caution not to
inadvertently contact or have any tool inadvertently contact any energized electrical termination.
2. Open the distribution cabinet’s front door by turning the latch in the counterclockwise position (system’s in a relay rack) or
open the system’s enclosure door.
WARNING! Damage to the circuit card may result if the next step is not followed.
3. Connect an approved grounding strap to your wrist. Attach the other end to a suitable ground.
4. Remove the top and front panels to access the circuit cards at the bottom of the distribution cabinet.
5. Carefully label any wires connected to the customer connection terminal block on the circuit card. These wires must be
connected to the same terminals on the replacement circuit card. Refer to Figure 5.14.
6. Carefully label the connectors plugged into the circuit card. These connectors must be plugged into the same connectors on
the replacement circuit card. Refer to Figure 5.14.
DANGER! In the next step, external wiring may be energized from an external source. DO NOT allow bare wire ends to
contact any grounded or energized object.
7. Remove the external wiring from the customer connection terminal block. DO NOT allow the bare wire end to contact any
grounded or energized object. Isolate the wire end with electrical tape. Repeat for each wire to be removed.
8. Unplug all connectors plugged into the circuit card.
9. Remove the screws securing the circuit card and remove the circuit card from the distribution cabinet.
10. In this step, ensure you do not intermix the old and replacement circuit cards. Set the shorting jumpers on the replacement
circuit card to match the locations on the old circuit card. Jumper settings are documented in the “Setting Jumpers and
Switch Options” section of the Power System Installation Instructions (IM582127000).
To Next Page
Loading...
Need help?
General
