6 MAINTENANCE
6-13
z
Case 2 -- the count value is abnormal:
Check item
Remedial action
Input pulse signal frequency exceeding its
specification limit
Lower the frequency to 20 kHz or less if
the module used is LWC400 or LWC401.
If it is LWC402, lower it to 100 kHz or
less.
Excessive pulse input due to noise
Take a noise reduction measure.
Relay contact make and break operations not
counted
Replace the relay contact with a transistor
contact.
None of the above
Replace the pulse counter module with a
new one.
z
Case 3 -- no comparison output is produced:
Check item
Remedial action
External power not supplied
Supply power to the external power
source.
External power supply voltage too low
Apply rated voltage (20 to 28 VDC) to the
pulse counter module.
External wiring incorrect
Correct the wiring.
None of the above
Replace the pulse counter module with a
new one.
Содержание HSC-2100
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Страница 24: ...1 GENERAL INFORMATION ...
Страница 38: ...2 SPECIFICATIONS OF INDIVIDUAL MODULES ...
Страница 78: ...3 INSTALLATION AND MODULE MOUNTING ...
Страница 92: ...4 WIRING ...
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Страница 102: ...5 MAKING USE OF MODULES ...
Страница 150: ...6 MAINTENANCE ...
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Страница 164: ...7 APPENDIX ...
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