IWAKI PUMPS PDS-H115, Руководство пользователя

Страница: 24 / 28

24
States Possible causes Check items Solutions
No home sen-
sor signal Faulty wiring If the signal and power lines are
connected in place? See page 15. • Correct wiring and resume opera-
tion.
Home sensor failure Use a tester to check the voltage
between GND and signal output
terminals. The result should be:
0V at sensor "ON"
Power voltage at sensor "OFF"
• Replace as necessary*
No pressure
sensor signal Faulty wiring If the signal and power lines are
connected in place? See page 15. • Correct wiring and resume opera-
tion.
Pressure sensor fail-
ure
Use a tester to check the voltage
between GND and signal output
terminals. The result should be:
1V when pump is stopped
Above 1V when pump is running
• Replace as necessary*
No encoder
signal
Faulty wiring If the signal and power lines are
connected in place? See page 15. • Correct wiring and resume opera-
tion.
Encoder failure A counter does not work. • Replace as necessary*
* Solutions marked with * are conducted by us.
Inspection
Perform daily inspection to keep pump performance and safety.
Daily inspection
Check for a leak or any other abnormality during operation. If you notice any abnormal condition, suspend
operation immediately and inspect/solve problems according to "Troubleshooting".
Inspection