User Manual

MITSUBISHI
ELECTRIC
9700 SERIES UPS
OWNERS / TECHNICAL MANUAL
Page Number:
6-4
MITSUBISHI ELECTRIC 9700 SERIES UPS
UA812
BYPASS VOLTAGE OUT
OF RANGE
Bypass voltage fell out of +/- 20% range 5 [1] Note 5

231
UA813
BYPASS PHASE
ROTATION ERROR
Phase rotation is inverted when bypass voltage
is normal
5[1]

242
UA814
BYPASS FREQUENCY
OUT OF RANGE
Bypass frequency fell out of inverte
r
synchronization follow-up range
5[1]
Minor
Note 5

243
UA816
EXTENDED BYPASS
OPERATION
Bypass power supply continued for many hours

[1]

244
UA817
EMERGENCY STOP
ACTIVATED
Emergency stop applied 13 [2] Minor Flicker 232
UA819
REMOTE SWITCH
ON(START)
There is an error with the remote start switch. 12 [1]

229
UA820
REMOTE SWITCH
ON(STOP)
There is an error with the remote stop switch. 12 [1]

230
UA821
UPS STOPPED
(TRANSFER INHIBITED -
INVERTER AND BYPASS
ASYNCHRONOUS)
Transfer cannot be permitted because Bypass
voltage abnormal
5[1]

249
UA822
GENERATOR OPERATION
, INHIBITED BYPASS
OPERATION
Transfer cannot be permitted because
Generator operation contact is ON

[1]

246
UA823 CB1 OFF AC input circuit breaker CB1 turned OFF 6 [1]

224
UA824 CB2 OFF
Battery disconnect circuit breaker CB2 turned
OFF
7[1]

225
UA826 CB101 OFF
Control power source breaker CB101 turned
OFF during inverter operation
8[1]

226
UA827 52C NOT PERMITTED "52C PERMISSION" switch turned to OFF 9 [1]

233
UA830
AC INPUT
UNDERVOLTAGE
AC input voltage fell out of - 10% range 3 [1]

234
UA831
EMERGENCY BYPASS
SWITCH ON
Emergency bypass switch turned to
<Emergency>
10 [1]

245
UA832
INTERRUPTED
TRANSFER OCCURRED
WHEN TRANSFERRING
TO BYPASS SOURCE
When transfer to the bypass supply, occurs
interrupted transfer.
5[1]

248
UA834 BATTERY DEPLETED
DC voltage dropped below discharge end
during inverter operation
10 [2] Note 5

255
UA835
UPS STOPPED
(TRANSFER INHIBITED -
BYPASS INPUT
ABNORMAL)
Transfer cannot be permitted because Bypass
voltage is abnormal

[1]

250