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MITSUBISHI
ELECTRIC
20033C SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-3
Note 1
Note 2
Note 3
LCD Failure Code Status Guidance Buzzer
External send-
out contact
Failure LED
53 Transfer circuit abnormal Call service engineer [1] Minor Flicker
54 Control circuit error Call service engineer [2] Major Lit up
55 Control circuit error Call service engineer [2] Major Lit up
56 Control circuit error Call service engineer [2] Major Lit up
57 Control circuit error Call service engineer [2] Major Lit up
58 Control circuit error Call service engineer [1] Minor Flicker
59 Control circuit error Call service engineer [2] Major Lit up
71 Overload Reduce load [1] Alarm Flicker
72 kW overload Reduce load [1] Alarm Flicker
73 Instantaneous overload Reduce load [1] Alarm Flicker
74 Load abnormal Check load [1] Alarm Flicker
76 Overload Reduce load [1] Alarm Flicker
81 Emergency stop activated - [1] Alarm Flicker
82 Fin temperature abnormal Call service engineer [2] Major Lit up
96 Control circuit error Call service engineer [2] Major Lit up
97 Restart after battery depleted - - Alarm -
98 Control circuit error Call service engineer [2] Major Lit up
99 Start up Press Clear button - Alarm -
MITSUBISHI ELECTRIC 2033C SERIES UPS