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9. Troubleshooting
Refer to the table below for troubleshooting.
When none of the causes in the troubleshooting can be confirmed, it is presumed that the product is
faulty and normal operation can only be recovered by the replacement of a part.
There is a possibility that this product has been damaged due to the operating conditions (problems
relating to the application), so please contact SMC to discuss appropriate measures.
Refer to the LATC4 series controller operation manual for details.
9. 1 Operation troubles
Error
Problem
Error
Possible
causes
Investigation method and the
location of possible causes
Countermeasures
Power
supply
failure.
Is the green LED in the controller lit?
Check the supplied voltage and current for
power supply to the controller.
→
4. External Wiring Diagram (P.17)
→
5. CN1: Power supply plug (P.19)
External
equipment
failure
PLC connected to the controller operates
properly?
Check the operation of the controller itself
by test operation, which is a function of
the setting software.
Refer to the operation manual of the controller
and take appropriate measures.
→
7.3 The parallel I/O signal (P.24)
Incorrect
wiring
Check if the wiring is correct.
Refer to the operation manual of the
controller to check wiring, for broken wires
and short-circuits.
Correct wiring and check if the input/output of
each signal is correct.
Separate the power supply for the
CN1controller power supply and the CN5 I/O
signal power supply.
→
4. External connection (P.17)
→
7.4 Parallel I/O connector wiring (Example) (P.28)
Alarm
generated
Controller alarm is generated?
Refer to the operation manual of the
controller. Check the type of alarm.
Refer to the operation manual of the controller
and take appropriate measures.
→
14. Alarm Detection (P.66)
Unsuitable
specification
Check that the Basic Parameter Setup
settings in the controller (product number
and mounting orientation of the Card
Motor) correspond to the product number
and mounting orientation of the Card Motor
that is connected to the controller.
Set the product number and mounting
orientation of the connected Card Motor to the
controller.
→
12.2 Basic Parameter Setup window (P.51)
Duplicated
operation
commands
The parallel I/O signals are activated in
"Test Mode" whilst the Controller Setting
Software is being started.
Select "Monitor Mode" in the Monitor/Test
window of the Controller Setting Software, or
terminate the setting software.
→
11.1 Overview of the operation instructions (P.46)
→
12.4 Monitor/Test window (P.57)
Does not
operate at
all.
Signal timing
The parallel I/O signals have been
activated after the power supply has been
turned on and before the ALARM output
has turned ON.
The DRIVE signal is turned OFF during
operation (except when the Card Motor is
performing a pushing operation).
Activate the parallel I/O signals first after that
the ALARM signal has been activated after
the power supplyhas been turned on.
If the DRIVE signal is turned OFF during
operation, the table of the Card Motor stops
on the spot, and holds the position.
If it is required to complete the operation, do
not turn OFF the DRIVE signal until the
operation has been completed.
→
11.2 Parallel I/O operation procedures (P.46)
→
7.3 Parallel I/O signal (P.24)