daleyd
Member
- Messages
- 10,411
- Location
- Wrexham, North Wales
Ah ok, no worries. I had a quick check and the ones I have are dc only unfortunately. I do have some low current coil ones, think they were 100mA draw or something (might be less)…I bought them to use as a safety controller I used only had transistor outputs, but I ended up using an interface relay anyway so didn’t require them in the end. I’ll drop you a pmI opted for 240AC, as the 24VDC supply I bought is only about 2A, and most (cheaper!) contactors seem to need 2A to pull in.
Even if I went for the PLC compatible contactors, they need ~500mA, and the controller can only handle 250mA, so I'd need to use some form of interface relay anyway, which means there's no real benefit to going 24VDC and it would cost me a bigger 24VDC PSU.
I've opted for 2 4pole contactors, so I can have a power on delay to avoid all the drives/VFDs powering up at once.
Off course, I could have just went for a few big relays, but DIN rail mounted ones capable of switching several KW rated drives don't work out that much cheaper than contactors.
