Solenoid Valve Burning Problem

Maybe someone has changed the 0.5A fuse for a 5A one?

I have to ask: Are you using a valve rated for 60 Hz on 50 Hz power?

Also what could affect is the orientation of the solenoid itself, placing them vertical generally is what it is designed for, so if it is at an angle it should not cause this problem but could affect it enough that it does not seat properly and keeps drawing too much current causing the burnout.

It is extremely rare but it has happened.

To expand on redfred's great comment:

If the solenoid is of the removable type and is encased in a housing, you need to insure that this housing is correct for the valve core/solenoid combination and in the correct position. If it is out of alignment enough it will not pull the core into the field far enough and will cause over current and blow your fuse (or burn up the coil if held too long).

Dear All,

Thanks for your feedback.

There are 11 solenoid in the machine. 3 solenoids mounted in horizontal direction, others are mounted in vertical direction. alignment is checked & found OK. We will check for alignment and fuse rating.

We had faced similar problems; I will try to mention a few points you should look into.

1. See the voltage and frequency mentioned in the coil itself and not on the body of the valve and see for any discrepancy. A coil rated for 60 Hz if given 50 will heat up and finally burn out. The reverse may cause chatter.

2. See if it is meant for DC operation

3. See if the coil is getting the proper voltage (Check by measuring ) . Undervoltage will cause chattering and ultimate burn out.

4. See if the coil fits snug into the core , ( in case you are not using the coil by OEM )

5. it is not clear what you mean by Cuirrent Specification but if that is the figure (0.2.amp)

mentioned in the valve body and is taking 0.8 amp, something is wrong. Pl make the above checks

Maybe , I am out of topic, but, looking for connector similar to DIN 43650

Can anyone help me locate this. Required urgently.