Mitsubishi Electric FR-A740-00023 Instruction Manual page 48

Connection of stand-alone option units
FR-A740-00170, 00250
1) Remove the screws in terminals PR and PX and remove the jumper.
2) Connect the brake resistor across terminals P/+ and PR. (The jumper should remain disconnected.)
1) Removal of Jumper
Terminal PX
FR-A740-00310 to 00620
Connect the brake resistor across terminals P/+ and PR.
FR-A740-00310, 00380
Jumper *
Brake resistor
⋅ Do not remove a jumper across terminal P/+ and P1 except when connecting a DC reactor.
38
2) Connection of Brake Resistor
Terminal PR
Brake resistor
Terminal P/+
Terminal PR
Terminal P/+
Terminal PR
Terminal PX
FR-A740-00470, 00620
Jumper
*
Brake resistor
Terminal PR
Terminal P/+