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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
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]