Goodrive350-19 series VFD Troubleshooting
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The encoder speed signal is
contrary to the motor running
direction
Encoder Z pulse
offline fault
Z signal wires are
disconnected
Check the wiring of Z signal
Motor
over-temperature
fault
Motor over-temperature
input terminal is valid;
Exception occurred to t
temperature detection
Exception occurred to
resistor;
Long-time overload running
or exception occurred
Check the wiring of motor
over-temperature input terminal
(terminal function 57);
Check whether temperature
sensor is proper;
Check the motor and perform
maintenance on the motor
Safe torque off function is
enabled by external forces
Exception occurred
to safe circuit of
channel H1
The wiring of STO is
improper;
Fault occurred to external
switch of STO;
Hardware fault occurred to
safety circuit of channel H1
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Exception occurred
to channel H2 safe
circuit
The wiring of STO is
improper;
Fault occurred to external
switch of STO;
Hardware fault occurred to
safety circuit of channel H2
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Exception occurred
to channel H1 and
channel H2
Hardware fault occurred to
STO circuit
Replace the control board