Chapter 7 Alarm
140
Err27 (Phase loss alarm)
Potential cause Check Handle
Phase loss of power supply Check the wiring of L1, L2,L3 Connect wire correctly
Power supply undervoltage Check supply power voltage Ensure correct voltage input
Phase loss checking return
circuit error
Check optocoupler, power on
again
If error still exists, please replace drive
Err29 (Over-torque alarm)
Potential cause Check Handle
Unexpected big load occurs Check load condition Correctly readjust the load.
Parameter P070、P071、P072
setting is not reasonable
Check the parameters Correctly readjust parameters.
Err35 (Connection path error between boards)
Potential cause Check Handle
Connection wire error between
boards
Check wire and connectors
Please change drive if error does not
disappear.
Connection route error Check optocouplers
Please change drive if error does not
disappear.
Err36 (Fan alarm)
Potential cause Check Handle
Cooling fan fault Check fan Replace fan
Fan detection circuit fault Check wiring Please wire rightly
Fan detection circuit fault Check optocouplers
Please change drive if error does not
disappear.
Err40 (Encoder communication error) ☆
Potential cause Check Handle
Encoder connection wiring
error
Check encoder connection
wiring
Connect wiring correctly
Encoder cable and connector
unsteady
Check cable and connector Replace cable and connector
Encoder damage Check encoder Replace encoder
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