300
15.3.12 Power supply module
(1) The LIFE OUT terminal has turned off (opened)
If the LIFE OUT terminal turns off at power-on or during operation of the programmable controller, check the LED
status of the power supply module.
• LED indication and module status during operation ( Page 219, Section 7.2.5)
• Troubleshooting ( Page 277, Section 15.1)
(2) The ERR. terminal has turned off (opened)
If the ERR. terminal turns off at power-on or during operation of the programmable controller, check the following
items.
If the ERR. terminal turns off after taking the above actions, the possible cause is a hardware failure.
Check the system operation in the order of size, the smallest system first. For the module that does not operate,
please consult your local Mitsubishi representative.
If a CPU module stop error occurs during use of two redundant power supply modules, the error is output from the ERR.
terminals of the two redundant power supply modules.
For details on the ERR.
terminals, refer to the following.
• Power supply module specifications (
Page 196, Section 7.2)
• Wiring to power supply module (
Page 103, Section 4.8.1)
Check item Corrective action
The ERR. LED of the CPU module flickers.
Remove the error cause. (
Page 282, Section 15.2)
Power of proper voltage is not supplied. Supply power of proper voltage.
The POWER LED does not turn on in green even after the
power supply module are removed and mounted to the
normal base unit.
(Do not mount any modules other than the power supply
module.)
The power supply module is failed.
Replace the power supply module with a normal one.
The internal current consumption for the entire system
exceeds the rated output current of the power supply
module.
Reexamine the system configuration so that the internal
current consumption does not exceed the rated output
current.
(
Page 674, Appendix 10)
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