Unipower Guardian Access 3U - Chapter 7 Replacing Modules; Controller Replacement; Rectifier Replacement; Figure 7-1 Unlocking and Removing the Controller

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POWERING TECHNOLOGY
Manual No. MS0027-MAN rev. 4
guardian_access_3u_ms27-man-rev4-0817.indd
Chapter 7 Replacing Modules
7.1 Controller Replacement
A faulty Controller can be easily replaced with a new one:
1. Loosen the front screw in the top left corner of the controller front panel using a at
screwdriver, Figure 7-1 (1).
1
1
2
Figure 7-1 Unlocking and Removing the Controller
2. Pull the controller out of the shelf, Figure 7-1 (2).
3. Reverse the process to insert the new controller into the empty slot and fasten the screw.
CAUTION After controller start-up, verify if the appropriate conguration le is uploaded
to the controller. If necessary refer to the PowCom™ User Guide.
7.2 Rectier Replacement
NOTE Rectiers can be hot-swapped.
This section describes how to replace a faulty rectier in an active system.
1. Release the rectier handles and remove the faulty rectier.
2. Insert the new rectier into the slot and fasten it with the handles. Refer to section 4.12
of this manual for details.
3. Ignore the module alarm caused by current sharing.
4. After 1 minute the yellow LED starts blinking. Wait for a maximum of 4 minutes for the
indicator to stop blinking.