User`s manual

Directions for use
7-29
7
(5) Check flow 5
This flow shows the checking procedure in the event of abnormality of output signal not detected by
the self-diagnosis of the JW-32CUM1.
Example of the error
- This flow shows the checking procedure in the event of abnormality of output signal not
detected by the self-diagnosis of the control module.
- Specific output fails to be turned ON (OFF).
- Among output signals of a same output module, operation of a certain output signal affects
other output signal.
Countermeasure: Error output signal
1 Connect hand-held programmer, and check ON/OFF by monitoring the data memory (output
relay) corresponding to the abnormal output.
2 Check the state of LED of output module.
3 Measure the voltage between the corresponding output terminal of the output module and the
common terminal using a tester.
When the inter-terminal voltage is output ON voltage (about 1 V or less): ON
When the inter-terminal voltage is load supply voltage: OFF
Note: When the load power source is OFF and wiring to the load is disconnected, it is abnormal
if the output is normal.
In case of 1=2=3 Connecting load is error
In case of 1=2≠3 Check the external wiring
(power supply) Exchange the output module.
In case of the others Exchange the output module.
The flow of output signal
3
JW-32CUM1 Output module
Memory
I/F
circuit
1
1
2
LED
Fuse
Power
supply
Hand-held programmer
Common terminal
Output terminal
Load