Fault Codes - Mitsubishi Electric M9950 Series Technical Manual

MITSUBISHI
ELECTRIC

6.0 FAULT CODES

This section covers fault codes, their description and required action.
At time of error :
A) Verify and record the occurrence of the alarm. Note details of alarm message
displayed on the LCD display panel.
B) If a circuit breaker (MCCB) has tripped, depress the toggle to reset the breaker
before closing it again.
(Conditions of MCCB）
M9950 SERIES UPS
OWNERS / TECHNICAL MANUAL
（Left sight view）
MITSUBISHI ELECTRIC M9950 SERIES UPS
CLOSE
TRIP
OPEN
Page Number:
6-1