18: TROUBLESHOOTING
18-18 USER’S MANUAL
Troubleshooting Diagram 12
Are the pulse input
ON/OFF voltage levels
correct?
Is FUN7 (input hard
filter time selection) set
correctly?
Is the input frequency
higher than the rated
value?
Is the high-speed
counter in the reset
status?
Reset the high-speed counter using hard reset input
I1 or soft reset special internal relay M315.
When hard reset is set to LOW, turn I1 off and on.
When hard reset is set to HIGH, turn I1 on and off.
Turn M315 on and off.
Was the high-speed
counter reset?
YES
Call IDEC for assistance.
NO
High-speed counter
does not work correctly.
END
NO
YES
Make sure of correct input
frequency.
Make sure of correct FUN7 (input
hard filter selection) setting.
See page 5-6.
Make sure of correct input voltage.
ON voltage: 19 to 30V DC
OFF voltage: 5V DC maximum
YES
NO
NO
YES
YES
NO
Turn gate input I2 on.
When hard reset is set to LOW, turn I1 on.
When hard reset is set to HIGH, turn I1 off.
Turn M315 off.
Is gate input I2 on
when using HSC3?
YES
NO
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