Alarm Output - Panasonic FP7 Series User Manual
Cpu unit
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Also See for FP7 Series:
- Command reference manual (1222 pages) ,
- User manual (275 pages) ,
- Additional functions manual (45 pages)
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4.4 Safety Measures
4.4.3 Alarm Output
● A power supply unit has an alarm output contact that can be used for releasing alarm signals
to outside in the event of error.
● The relay contact for alarm output is closed when power supply is ON. If the watchdog timer
is operated due to a hardware error or a program error, the relay contact is turned into an
open status.
● The watchdog timer is a program error and hardware error detection timer.
● When the watchdog timer is operated, the ALARM LED in the front of the controller unit turns
on. In cases where a power supply unit is attached, the ALARM contact of the power supply
unit is operated at the same time. All outputs to the output units are turned off and the unit is
put in halted state. In the meantime, no processing is undertaken at all, and communication
with the programming tool is also halted.
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WUME-FP7CPUH-09
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