LSIS SV008iC5-1F User Manual

8. Troubleshooting and Maintenance
8-4
Protective
functions
Cause Remedy
 Line voltage is too high.  Check whether line voltage
exceeds its rating.
Low
voltage
 Line voltage is low.
 Load larger than line capacity is
connected to line (ex: welding
machine, motor with high starting
current connected to the
commercial line).
 Faulty magnetic switch at the
input side of the inverter.
 Check whether line voltage is
below its rating.
 Check the incoming AC line.
Adjust the line capacity
corresponding to the load.
 Change a magnetic switch.
Electronic
thermal
 Motor has overheated.
 Load is greater than inverter
rating.
 ETH level is set too low.
 Inverter capacity is incorrectly
selected.
 Inverter has been operated at
low speed for too long.
 Reduce load weight and
operating duty.
 Change inverter with higher
capacity.
 Adjust ETH level to an
appropriate level.
 Select correct inverter capacity.
 Install a cooling fan with a
separate power supply.
External
fault A
contact
input
 The terminal which is set to “18
(External fault-A)” or “19 (External
fault-B)” in I20-I24 in I/O group is
ON.
 Eliminate the cause of fault at
circuit connected to external fault
terminal or cause of external
fault input.
External
fault B
contact
input
Operating
method
when the
frequency
command
is lost
 No frequency command is
applied to V1 and I.
 Check the wiring of V1 and I and
frequency reference level.
Parameter save error Hardware fault
Communication Error

Contact your local LSIS sales
representative.

LSIS SV008iC5-1F Specifications

General

Brand	LSIS
Model	SV008iC5-1F
Category	DC Drives
Language	English