26
Wiring
Precautions for ON-OFF control by a mechanical relay
This pump is equipped with CPU. Always start/stop the pump by the STOP
signal for ON-OFF control. Try not to turn on and off the main power. Oth
-
erwise, observe the following points.
•
Do not turn ON/OFF power voltage more than six times per hour.
•
When using a mechanical relay for ON-OFF operation, its contact capac
-
ity should be 5A or more. Contact point may fail if it is less than 5A.
•
If a mechanical relay with the contact capacity of 5A is used, the maxi
-
mum allowable ON/OFF operation is about 150,000 times. The contact
capacity should be 10A or more when making ON-OFF operation over
150,000 times or sharing a power source with a large capacity equip
-
ment. Otherwise a contact point may fail by surge voltage.
•
Use a solid state relay (SSR) as necessary (such as the OMRON G3F).
See manufacturer's catalogues for detail.
Signal wire connection
Points to be checked
•
Check that the main power is turned off.
The pump is still charged right after turning off power. Wait for one min
-
ute before wiring.
Applicable cables
Use our optional connector cables below or purchase DIN 5-pin female
connector cables when using signal input.
Binder connector cables
5-pin : 713 series 99-0436-10-05 Input signal
.
