Hi. Attached a couple of pictures to help answer a couple of my wiring questions. This will be 3ph coming out of a VFD to a 3ph .5hp Siemens' regenerative blower. I'm not going to wire the VFD directly to the motor wiring block on the blower. I'll wire a female 3ph receptacle to the VFD, so it can be plugged into the blower (existing male) and moved around as needed.
1: Why does this unit have dual cables into the wiring block? One is the larger 4-wire connections to the T ports, and the other is a 2-wire connected to P1 & P2. What is the purpose of the P1 & P2 wire?
2: How does one read that factory wiring diagram. Makes no sense to me.
1: Why does this unit have dual cables into the wiring block? One is the larger 4-wire connections to the T ports, and the other is a 2-wire connected to P1 & P2. What is the purpose of the P1 & P2 wire?
2: How does one read that factory wiring diagram. Makes no sense to me.