Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 37
Uninterruptible Power Supply
4.5.2 Transfer from Maintenance Bypass
Step 1
: After the maintenance is completed, make sure all Modules have been installed properly.
Step 2:
Please enter LCD SETUP MENU then choose “SYSTEM” to ensure that the “Static Bypass mode” is en-
abled. If the “Static Bypass mode” is disabled, you have to enable it. Then, exit the SETUP menu and ensure that
the UPS operates in static bypass mode.
Step 3:
Switch OFF the Maintenance Bypass Breaker as shown below:
Step 4
: re-insert the 2 screws on the MBS breaker cover. For the four and six slot chassis re-install the LCD display
panel housing.
2 Slot Chassis
4 and 6 Slot Chassis
Step 5:
Turn on the UPS inverter