24
Wiring
NOTE
• Do not share a power source with a high power device which may generate surge
voltage. Otherwise an electronic circuit may fail. The noise caused by an inverter also
affects the circuit.
•
Energize the pump with a power voltage via a mechanical relay or switch. Do not
fluctuate the voltage, or CPU may malfunction. See page 25 for the precautions for
ON-OFF control by a mechanical relay.
Apply power sharply
Do not apply gradually
Surge voltage
The electronic circuit in this pump may fail due to surge voltage. Do not
place the pump close to a high power device of 200V or more which may
generate large surge voltage. Otherwise, take any of the following meas-
ures.
•
Install a surge absorption element (ex. a varister with capacity of 2000A
or more) via power cable.
Recommended varisters
SUNTAN
TSV14D511K
Panasonic
ERZV14D511
See manufacturer's catalogues for detail.
•
Install a noise cut transformer via power cable.
POWER
ON
OFF
TIME
POWER
ON
OFF
TIME
Surge absorption element
Noise cut transformer
