Marco (Customer) asked a question.
Should I directly connect solenoid valves to PLC digital output?
For example, I see this
Should I directly connect solenoid valves to PLC digital output?
Thanks
- Garry (Customer)
Hi Marco,
DC solenoids have surges that can destroy PLC outputs. The information that you specified indicates that the Nitra solenoid valve has a surge suppression diode. This is good.
I would just verify the current ratings for the solenoid and the maximum per common point on the PLC output.
Regards,
Garry
- ThatShouldHaveWorked (Customer)
If there is a short you'll burn up the output. So you'll want to either fuse it or use a relay. I like the RS4N-DE slim card relays for I/O isolation. Just stick to the 4 relay version. The 6 relay modules are worthless.
- ssweber (Customer)
I also like the RS4N-DE for higher amp needs, but also have had good luck using the 8-pt Click digital Sourcing outputs (.3amps) to directly power any of the AVS directional solenoids. I put a 1n4004 diode directly at the solenoid, between the +/-. Haven’t had any fried cards.
If there is a short you'll burn up the output. So you'll want to either fuse it or use a relay. I like the RS4N-DE slim card relays for I/O isolation. Just stick to the 4 relay version. The 6 relay modules are worthless.