Control Circuit Terminal Layout - Mitsubishi Electric FR-B-750 to 75K Instruction Manual

2.3.3

Control circuit terminal layout

Terminal screw size: M3.5
Tightening torque: 1.2N·m
(1) Common terminals of the control circuit (SD, 5, SE)
Terminals SD, 5, and SE are all common terminals (0V) for I/O signals and are isolated from each other. Do not earth
(ground).
Avoid connecting the terminal SD and 5 and the terminal SE and 5.
Terminal SD is a common terminal for the contact input terminals (STF, STR, STOP, RH, RM, RL, JOG, RT, MRS, RES,
AU, CS) and frequency output signal (FM).
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) 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.
(2) 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.
A1 B1 C1 A2 B2
RL RM RH RT AU STOP
SE RUN SU IPF OL FU
Control circuit specifications
C2 10E 10 2 5 4
MRS RES SD FM AM
SD SD STF STR JOG CS
External signal input using transistor
STF, etc
Inverter
SD
1
PC
+24V
2
31