Magnefix MD4 2.3.3 SEG protection relay The protection relay is fitted in a separate secondary compartment under the switching mechanism for the protected panel. This protection relay comes with a separate manual.

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Magnefix MD4 2.3.3 SEG protection relay The protection relay is fitted in a separate secondary compartment under the switching mechanism for the protected panel.

Eaton Magnefix MD4: User Manual | Brand: Eaton | Category: Switch | Size: 2.28 MB | Pages: 109

3. Check the protection relays in accordance with the manufacturer’s instructions. 4. Check the switches: switches that are rarely if ever used must be switched on and off 10 times. Switching off is preferably done with the protection relay which is connected to a relay test kit.

The relay-operated conditions are indicated by the corresponding LEDs provided below the keys, for Under/Over frequency conditions. 1.Press MODE key, display shows MD1-UFrq 45.00Hz (mode-1)

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All you need to do is supply the +ve coil connection of your relay to a (fused) +24VDC supply, and the -ve of the coil to the MD4 Dout pin. Then feed another fused +24VDC through the contacts of the relay to the solenoid valve coil, the other side of which connects to 0VDC supply.

After double checking the wiring it was found that the MD4- DOUT signal was going into the (86) pin of the relay instead of the (85) pin. After rewiring at the relay the problem is reportedly resolved.