Kruger Ecowatt K320 Series Operation Manual page 263

Ecowatt Drive K320 series
®
Fault
Fault type
code
Encoder Z
ENC1Z pulse offline
fault
Motor
OT over-tempera
ture fault
Safe torque
STO
off
Exception
occurred to
STL1
safe circuit of
channel H1
Exception
occurred to
STL2
channel H2
safe circuit
Exception
occurred to
channel H1
STL3
and channel
H2
Safety code
FLASH CRC
CrCE
check fault
Repetitive
expansion
E-Err
card type
Encoder
ENCU
UVW loss
V
fault
Possible cause
Z signal wires are disconnected
Motor over-temperature input
terminal is valid;
Exception occurred to t
temperature detection Exception
occurred to resistor;
Long-time overload running or
exception occurred
Safe torque off function is enabled
by external forces
The wiring of STO is improper;
Fault occurred to external switch
of STO;
Hardware fault occurred to safety
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 H2
Hardware fault occurred to STO
circuit
Control board is faulty
The two inserted expansion cards
are of the same type
No electric level variation occurred
to UVW signal
Check the wiring of Z signal
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
/
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Check whether terminal wiring
of STO is proper and firm
enough;
Check whether external switch
of STO can work properly;
Replace the control board
Replace the control board
Replace the control board
Users should not insert two
cards with the same type; check
the type of expansion card, and
remove one card after power
down
Check the wiring of UVW;
Encoder is damaged
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Troubleshooting
Solution