Wiring Of Control Circuit - Mitsubishi Electric FR-A720-00030-NA Instruction Manual

2.3.3

Wiring of control circuit

(1) Control circuit terminal layout
SE
(2) 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) these terminals.
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.
(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.
A1 B1 C1 A2 B2 C2 10E 10
RL RM RH RT AU STOP
RUN SU IPF OL FU SD
2 5 4
MRS RES SD FM AM 1
SD STF STR JOG CS PC
External signal input using transistor
Control circuit specifications
Control circuit terminal *
Terminal screw size: M3.5
Tightening torque: 1.2N·m
* Refer to instruction manuals of
options for the available control
terminals other than the standard
control circuit terminal.
+24V
STF, etc
Inverter
SD
2
31