Chapter6 Troubleshooting
168
Fault
display
Name of
protection
Possible reasons of fault Actions
HE
Hall current
detection fault
●The inverter’s current
detection circuit is
faulty
●The current sensor is
damaged
●Replace the inverter
●Seek for tech support
dE
Pulse coder
fault
●Pulses per revolution or
lower frequency are too
small.
●Terminal
(3004GB/35R5PB and
below: X4, X5,
35R5GB/37R5PB and
above: X7, X8) setting
is inconsistent with the
wiring
●Encoder wiring error
motor stall
●The encoder is
damaged
●Set correct pulse detection
method
●Check the pulse input
wiring (Double phases
detected, for
3004GB/35R5PB and
below: A-X4, B-X5, for
35R5GB/37R5PB and
above: A-X7, B-X8)
●Make sure that the motor
is running smoothly
●Replace encoder
●Check the input terminals,
seek for technical support
Attention:
①For mid-power/mini-watt inverters (3022G/3030P and the below models), there
aren’t fault Uu2 (Control circuit under voltage) and Uu3 (Bad charge circuit).
②Only LCD keyboard has parameter-copying function, a standard LED keyboard
doesn’t has this function.
③ S2R4GB~3004GB/35R5PB have no short-circuit protection/output grounding
protection (SC).
6.2 Warning Display and Explanation
After action of warning function, warning code is flickered display, but the inverter is
not in fault-protecting state: PWM output will not be closed off, fault relay will not act.
In addition, the inverter would automatically return to prevenient operation state
after the warning signal disappeared.
The following table lists different kinds of Warnings.
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