Tripp Lite SmartOnline S3MX Owner's Manual page 31

4. Operation
4.4.11 Operation in Fault Mode
1) When the Fault LED illuminates and the alarm sounds continuously, there is a fatal error in the UPS. Users can view the fault code from
the LCD panel. Refer to the table in section 6. Troubleshooting for more information.
2) Check the loads, wiring, ventilation, utility, battery, etc. after a fault occurs. Do not attempt to turn on the UPS again until the problem
is resolved. If the problem cannot be fixed, please contact Tripp Lite Tech Support.
3) In the event of an emergency, immediately cut off the utility connection, external battery, and output to avoid further risk or danger.
4.4.12 Transfer Critical Load from Line Mode to Maintenance Bypass
WARNING:
This operation should only be performed by maintenance personnel or qualified technicians. When the
UPS needs to be repaired or serviced and the load cannot be shut off, the UPS should be put in Maintenance Mode
(repairs limited; some repairs may require the unit to be shutdown and power disconnected).
1) Remove the cover of the Maintenance Bypass Switch.
2) Confirm the UPS is operating in Bypass Mode.
3) Turn the Maintenance Bypass Switch to the "BYPASS" position.
4) Turn off the UPS Input Breaker/Switch (for dual input models turn off both the UPS Input Breaker/Switch and the Input 2 Breaker/
Switch).
5) The UPS will enter Shutdown Mode and will slowly de-energise. After the UPS powers off, turn off the battery breaker (external battery
cabinet).
6) The critical load is now supported in Maintenance Bypass Mode.
4.4.13 Transfer Critical Load from Maintenance Bypass to Line Mode
WARNING:
This operation should only be performed by maintenance personnel or qualified technicians.
1) Turn on the battery breaker (external battery cabinet).
2) Turn on the UPS Input Breaker/Switch (for dual input models turn on both the UPS Input Breaker/Switch and the Input 2 Breaker/
Switch).
3) Confirm the UPS is operating in Bypass Mode.
4) Turn the Maintenance Bypass Switch to the "UPS" position.
5) Install the cover of the Maintenance Bypass Switch.
6) Press Power ON/OFF button for 2 seconds until a beep is heard, then release to start the inverter.
7) The critical load is now supported in Line Mode.
31