172
Digital
tube
indication
on master
unit
Failure code definition
Failure description
Remarks
108
Module rectifier side
software transient
overcurrent
-
-1: compressor
module 1;
-2: compressor
module 2;
-4: fan module
1;
-5: fan module
2;
Four fault
confirmation
for one hour
,
Once
confirmation
un-resumable
109
Module rectifier side
current detection circuit
anomaly
-
110
Module hardware
overcurrent
-
111
Compressor out of step
In the process of starting or running, the rotor position can not
be detected for 6 times in a row, and the INV control board is
automatically restored after stopping 5S
112
High temperature of
module radiator
The temperature more than 94
℃
fault alarm.
Automatic recovery of INV control board when temperature is
94
℃
113
Module overload
-
114
Inverter input power
abnormal
P/N voltage<420V, alarm
P/N voltage≥420V, auto recovery
P/N voltage>642V, alarm
P/N voltage≤642V, auto recovery
Inverter input power voltage sags and brief interruptions
117
Modular software
overcurrent
-
118
Module boot failure
Compressor 5 consecutive start failure
119
Module current
detection circuit error
Abnormality of current detection sensor, no connection or
connection error
120
Module power supply
error
Inverter controller power supply instantaneous interrupt
121
Module control board
power supply abnormal
Inverter controller board power supply instantaneous interrupt
122
Module radiator
temperature sensor
abnormal
Temperature sensor resistance is abnormal or not connected
123
Module rectifier side
hardware transient
overcurrent
-
124
Three phase power
supply failure
-
125-0/1 Compressor frequency
mismatch
(the current frequency is greater than or equal to INV or +3Hz
target frequency (frequency) target actual frequency >0 & &
=0) for 5 minutes
resumable
125-4/5 Fan speed mismatch
(locked rotor)
20rpm run below the 30s, or the target value of 70% to run for
up to 2 minutes after the shutdown, automatic recovery after 2
minutes of 50 seconds, one hour and four fault confirmation.
Once
confirmation
un-resumable
127
MCU reset fault
If the host detects sub machine MCU reset, and the machine
is in operation, the host MCU reset the fault, the whole system
down; if in the heating mode, then restart the 4WV power, the
system re 4WV reversing operation. Four fault confirmation for
one hour
Once
confirmation
un-resumable
Summary of Contents for MRV 5-RC VP1-112B
Page 1: ...MRV 5 RC Service Manual SYJS 03 2019REV A Edition 2019 03 ...
Page 3: ......
Page 55: ...52 AV08 10 12 14IMVURA 4 Center of gravity x X 347 9587 y 471 5454 z 725 6683 y z ...
Page 56: ...53 AV16 18 20 22IMVURA x X 650 5962 y 380 7255 z 706 5342 y z ...
Page 106: ...103 2 Dimension 4 19 200 60 25 25 25 249 108 232 84 69 388 73 82 65 103 177 4 44 4 35 277 ...
Page 116: ...113 2 Preparation before installation ...
Page 162: ...159 One by one valve box PCB code 0151800186A 2 Valve box PCB photo and dip switch setting ...
Page 165: ...162 One by four valve box PCB code 0151800466 ...