Shihlin electric SL3 Series, User Manual

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Appendix 2 Alarm code list
Appendix 191
Note 1: Do not turn on the power repeatedly before removing the cause of the alarm.
Code Screen display Cause Troubleshooting
OPT
RS-485
connector error
1.Communication error , exceeding the
retry limit.
2. External noise interference
3. The logic of the communication control
program is unreasonable
4.Disconnect time exceeding the limit. 1.It is recommended to use twisted-pair
shielded communication lines and the
shielding layer is properly grounded
2.Check the communication program
3.Set the communication parameters
correctly
EEP
Memory error
ROM malfunction
If the alarm repeated, send the unit back to
the dealer or the manufacturer to repair.
Avoid frequent parameters modification and
saving target frequency to EEPROM, please
refer to 07-11 (P.34) and target frequency
address H1002 to prevent damage.
PIDE
PID error
1.The capacity of the inverter or motor is
not enough
2.PID target value or feedback value
doesn’t make sense
3.Peripheral devices malfunction
4. During PID control, the feedback signal
is not connected or dropped
1.Use an inverter or a motor with bigger
capacity.
2.Check PID parameters
3.Check all peripheral feedback devices of
the system (sensors, potentiometer) and
wirings.
CPU
CPU error
Strong electromagnetic interference Reduce peripheral interference.
OLS
Stall prevention
and protection
Over-loaded motor
1.Reduce the load
2.Increase 06-01(P.22) value.
SCP
Short circuit
over-current
1.Short circuit at output-end
2. Inverter false alarm SCP
1.Check if the output circuit is short and
check the wiring
2. Inverter may be interfered by external
electromagnetic noise, please improve the
wiring (Note 1)
NTC
Module overheat
The inverting part of IGBT module
overheated
1.Lower the surrounding temperature and
increase venting
2. Check if the cooling fan is functioning
properly
3. Confirm whether the carrier frequency
00-11 (P.72) is set too large
IPF
Input power error
Input power error(phase loss) Check if the power supply is normal.
OL2
Torque overload
1. Motor overload
2. The value in 06-08 (P.155) and
06-09(P.156) doesn’t make sense. 1.Reduce the load
2.Set 06-08 (P.155) and 06-09(P.156)
properly
CPR
CPU error
CPU error
1.Check the wiring
2.Check the parameter setup
3.Reduce noise interference
AErr
Terminal 3-5 error
The terminal 3-5 analog input disconnect Check parameter 02-24(P.184)
GF
Output short to
ground
Shortage between output and ground
Please check whether the motor short circuit
to ground
HDC
Hardware
self-detect circuit
error
Hardware self-detect circuit error
Send the unit back to the dealer or the
manufacturer to repair