LS Industrial Systems iG5A - Error; External Fault a Contact Input; External Fault B Contact Input

2. Troubleshooting
26
LCD Display
Type
Description
External fault
A contact
input
Latch
Normal open contact input. When a P7 terminal set to “Ext
trip-A” is ON (Closed), inverter displays the fault and turns
off its output.
External fault
B contact
input
Latch
Normal close contact input. When a P8 terminal set to “Ext
trip-B” is OFF (Open), inverter displays the fault and turns
off its output.
Cause
Remedy
The terminal 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.
LCD Display
Type
Description
No frequency
command
Level
When inverter operation is set via Analog input (0-10V or
0-20mA input) or option (RS485) and no signal is applied,
operation is done according to the method set in I62
(Operating method when the frequency reference is lost).
Cause
Remedy
No frequency command is
applied to V1 and I.
Check the wiring of V1 and I and frequency reference level.
LCD Display
Type
Description
Remote
keypad
communicatio
n error
Latch
Displayed when inverter and remote keypad does not
communicate each other. It does not stop Inverter
operation.
Cause
Remedy
Communication error between
inverter keypad and remote
keypad.
Check for connection of communication line and connector.