Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 28
Uninterruptible Power Supply
Step 5
: Make sure there is no warning or fault event happening. If there is, please refer to Chapter 6 Troubleshoot-
ing to solve it.
Step 6:
Press Power ON/OFF button for two seconds to enter Line Mode as shown below.
After turned on, UPS will do self-test and start Inverter up. UPS will be transferred to Line mode when all power
modules are ready.