Trouble Shooting
True Online 6-20k UPS User Manual
32
Seq.
Items
0
1
Solution
56 8
Bypass SCR or
relay fault
OK
Fault
UPS requires service.
57 9
Reserved
58 10
Reserved
59 11
BYP frequency
over track range
OK Fault
Check if bypass input
frequency is abnormal
60 12
Reserved
61 13
Reserved
62 14
Over load time
out
OK Fault
63 15
Reserved
64 16
Reserved
65
A4
1 Manual
shutdown normal
shutdo
wn
66 2
INV
protect OK
Fault
67 3
Transfer times
limit in one hour
OK Fault
Transfer times between
inverter and bypass is over 5
times in one hour
68 4
Reserved
69 5
Reserved
70 6
Reserved
71 7
Reserved
72 8
INV over
temperature Fault
OK Fault
Check if environmental temp is
over 40
°
C, or fans are
abnormal
73 9
Reserved
74 10
Reserved
75 11
Over
load OK
Over
load
Check load level indicator and
remove non-essential load.
Recalculate the load and
remove number of loads
connected to UPS.
76
12 INV
relay
or
fuse OK
Fault Check if inverter relay is