Hello, MR-J2S-700A is a built-in regenerative resistor, Japanese
manual enquiry, confirmation is a short connection between the P-C pulled, will be on the line betweenexternal regeneration resistor connected to the PC, correct wiring may refer to the Japanese MR-J2S-A series technical manual or call 400 technical hotline inquiries.
If you woike MR-J2S-700A to MR-J2S-700A pick up an external regeneration resistor, you must first remove the p and c internal resistance, otherwise it will cause resistance smaller, because they are in parallel!