Victron BP to JVR digital timer wiring trouble

DIY
1

I have the Victron BP 12/24 65 serving a LiFePO4 battery and I am linking to a JVR digital timer to allow on off function timer to a water pump. Difficulty is, I get power to the timer with the two pin connection on the Victron bridged and can manually start

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and stop the voltage to the out on the Victron. But when I try to use the two pin as a relay for the timer I can’t get voltage to turn on or off with the timer. I must have the wrong wiring. I have the relay to pin 3 and 4 on the timer. Any suggestions.

2

The remote jumper (the two-pin connector) isn’t a relay, it’s a remote switch for the BatteryProtect itself.

I might be mis-reading your description of what you’re trying to do, but it sounds like you might be thinking of its functionality backward: You can use the timer to switch the BP on or off using the remote jumper, but you can’t use the remote jumper to switch the timer.

3

Please, check the wiring of the positive wires:

  • the wire from battery + must go to IN contact on Battery protect AND contact 4 on timer;
  • the + wire to pump must go from OUT contact on Battery protect.

Negative wires looks OK.