7 Troubleshooting
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285
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Fault
Code
Name Possible Causes Solution Level
Err67 AFE fault
Subcode 01: Overcurrent
◆
Check whether the grounding or short circuit
of the AFE or AC drive exists.
◆
Check whether the controller parameters are
set unreasonably.
◆
Check whether the power grid is abnormal
and whether output oscillation exists.
◆
Check any internal fault of the machine.
◆
Contact Inovance.
5A
Subcode 02: AFE overheat
Subcode 04: Bus undervoltage
◆
Check whether the ambient temperature is
too high.
◆
Check whether the fan is faulty and whether
◆
Check whether the module is damaged.
◆
Test the circuit fault. Contact Inovance.
◆
Reduce the load if the load is too heavy.
◆
Check whether the bus voltage test is abnor-
mal. Contact Inovance.
Subcode 06: Bus overvoltage
◆
Install a regen. resistor on the AC drive.
◆
Check whether the power grid voltage and
wiring are normal.
◆
Check model matching and conditions.
◆
Contact Inovance. Check whether the circuit
and the voltage loop are set reasonably.
Subcode 07: AFE overload
◆
Check whether the matching of the machine
power is reasonable.
Subcode 08: Power grid
overvoltage
Subcode 09: undervoltage of
the mains
Subcode 10: overfrequency of
the mains
Subcode 11: underfrequency
of the mains
◆
Check whether the power grid voltage is
normal.
◆
Contact Inovance. Check whether the circuit
is normal.
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