IDEC MicroSmart Pentra - Manual (Page 142)

13: T ROUBLESHOOTING
13-16 W EB S ERVER CPU M ODULE U SER ’ S M ANUAL FC9Y-B1278
Troubleshooting Diagram 8
Troubleshooting Diagram 9
Is the scan time longer than
400 ms?
Change the watchdog timer value in the
Function Area Settings. For details, see
“Watchdog Timer Setting” on page 5-3.
Watchdog timer error occurs
and the CPU does not run.
Call IDEC for assistance.
YES
NO
Are the input ON/OFF
voltage levels correct?
The interrupt/catch input
cannot receive short pulses.
Make sure of correct input voltage.
ON voltage:
15V DC minimum
OFF voltage: 5V DC maximum
YES
NO
Call IDEC for assistance. END