6
troubleshooting
6-7
Error alarms (external causes)
n
No.
Message
Meaning
Possible Cause
Action
C1
EMERGENCY STOP
Emergency stop was
activated.
External safety circuit functioned and
emergency stop was activated.
Ensure safety and then
cancel the safety circuit.
Emergency stop wiring is incomplete.
Wiring is wrong.
Configure the safety
circuit correctly.
C2
MOTOR POWER
DOWN
Drop in main power
supply voltage.
External safety circuit functioned and
main power supply turned off.
Ensure safety and then
cancel the safety circuit.
Main power was not supplied.
Supply the main power
correctly.
Warning alarms
n
No.
Message
Meaning
Possible Cause
Action
F1
ABS. BATTERY LOW
TS-X
TS-SH
Absolute battery voltage
dropped below the
warning level (3.1V).
Absolute battery has worn out or
failed.
Replace the absolute
battery.
F2
PUSH WARNING
Failed to push a
workpiece.
Push operation was judged as a
"failed to push" error.
Correct the problem to
cancel the "failed to
push" error.
F4
I/O ERROR
I/O module is not
operating correctly.
24V was not correctly supplied to
NPN or PNP circuits.
Supply 24 V power
correctly.
I/O module was not operating
correctly.
Replace the controller.