Monarch nice3000 - Page 282

NICE3000
new
User Manual 9 Troubleshooting
- 281 -
9
Fault
Code
Name Possible Causes Solution
Level
Err51
CAN
communication
abnormal
Subcode 101: Feedback data
of CANbus communication
with the CTB remains
incorrect.
1. Handling at inspection-speed
commissioning:
This fault does not affect inspection-speed
commissioning and you can hide the fault
directly on the operation panel.
2. Handling at normal-speed commissioning
and running:
Subcode 101:
● Check the communication cable
connection.
● Check the power supply of the CTB.
● Check whether the 24 V power supply of
the controller is normal.
● Check whether there is strong-power
interference on communication.
1A
Err52
HCB
communication
abnormal
Subcode 101: Feedback data
of Modbus communication with
the HCB remains incorrect.
1. Handling at inspection-speed
commissioning:
This fault does not affect inspection-speed
commissioning and you can hide the fault
directly on the operation panel.
2. Handling at normal-speed commissioning
and running:
Subcode 101:
● Check the communication cable
connection.
● Check whether the 24 V power supply of
the controller is normal.
● Check whether the HCB addresses are
repeated.
● Check whether there is strong-power
interference on communication.
1A