Tecnoware EVO DSP PLUS MODULAR - Page 97

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UPS EVO DSP PLUS Modular 91 User’s manual
13.4 Replacement Procedures of Modules
Any repair or maintenance work must be performed exclusively by qualified technical
personnel authorized by TECNOWARE.
Remove the Power Modules, Bypass Module and Battery Modules from top to bottom, so
as to prevent cabinet from toppling due to high center of gravity.
The Static Transfer Switch (STS) Module is NOT hot pluggable. It should be replaced only
when the UPS is in Maintenance Bypass Mode or completely Powered OFF.
13.4.1 Replacement Procedures of Power Module
Confirm UPS is in Line Mode or Bypass Mode.
Confirm at least one Power Module remains in the UPS cabinet after one Power Module
is removed.
If all Power Modules have to be removed, the replacement MUST be under Maintenance
Bypass Operation Mode.
1. Turn Ready Switch to “ ”(Unlock) position
2. The Power Module FAULT Led (RED color) is lit to indicate the Power Module Output is OFF and disconnected
from UPS system.
3. Use a screwdriver to remove the four screws from fixing holes.
4. Two people pull out together and remove the Power Module from its slot.
5. After servicing the module, confirm that the DIP Switch of the module is set correctly and the Ready Switch
is in unready state “ ” (Unlock position).
6. Push the Module into the cabinet and tighten the screws on both sides. If it’s more than one Power Module to
re-install, please wait 30-second before installing another Module.
7. Move the Ready Switch to the “ ”( Lock) position, because the Module is Ready to start.
8. The re-installed Power Module will be turned on automatically when UPS is in Line Mode.
13.4.2 Replacement Procedures of Static Transfer Switch (STS) Module
Confirm the UPS is operating in Maintenance Bypass Mode.
1. Follow chapter 11.4.1 “Transfer to Maintenance Bypass” procedure to transfer UPS into Maintenance Bypass
operation.
2. Remove the fixing screws on both sides of the front panel of the STS Module and pull the Module out from the
cabinet.
3. After servicing the Module, push the Module into the cabinet and tighten the screws on both sides.
4. Follow chapter 11.4.2 “Transfer to UPS Protection” procedure to transfer UPS into Bypass operation.
5. Now it is possible to turn UPS on.