Control Circuit Terminal Layout - Mitsubishi Electric FR-A740-00023 Instruction Manual

Control circuit specifications
2.3.3

Control circuit terminal layout

A1
PC AM
(1) Wiring method
Loosen the terminal screw and insert the cable into the terminal.
Screw Size: M3 Tightening Torque: 0.5N·m to 0.6N·m
2
Cable size: 0.3mm to 0.75mm
Screwdriver:Small flat-blade screwdriver (Edge thickness: 0.4mm/
Edge width: 2.5mm)
CAUTION
Undertightening can cause cable disconnection or malfunction.
Overtightening can cause a short circuit or malfunction due to damage to the
screw or unit.
(2) Common terminals of the control circuit (PC, 5, SE)
Terminals PC, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Do not earth
(ground) these terminals.
Avoid connecting the terminal PC and 5 and the terminal SE and 5.
Terminal PC is a common terminal for the contact input terminals (STF, STR, STOP, RH, RM, RL, JOG, RT, MRS, RES,
AU, CS).
The open collector circuit is isolated from the internal control circuit by photocoupler.
Terminal 5 is a common terminal for frequency setting signal (terminal 2, 1 or 4), analog current output terminal (CA)
and analog output terminal AM.
It should be protected from external noise using a shielded or twisted cable.
Terminal SE is a common terminal for the open collector output terminal (RUN, SU, OL, IPF, FU).
The contact input circuit is isolated from the internal control circuit by photocoupler.
(3) Signal inputs by contactless switches
The contacted input terminals of the inverter (STF, STR, STOP, RH,
RM, RL, JOG, RT, MRS, RES, AU, CS) can be controlled using a
transistor instead of a contacted switch as shown on the right.
28
B1 C1 A2 B2 C2 RL
10E 10 2 5 4
2
RM RH RT AU STOP RES STF STR PC
1 SE RUN SU IPF OL
External signal input using transistor
CA SD PC
FU MRS JOG CS
Cable stripping size
5mm
Wire the stripped cable after twisting it
to prevent it from becoming loose. In
addition, do not solder it.
Inverter
PC
STF, etc.
R
+24V