Wiring Of Control Circuit - Mitsubishi Electric FR-A720-0.4K Instruction Manual

Fr-a700 series
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Control circuit specifications
2.3.3

Wiring of control circuit

(1) Control circuit terminal layout
(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.
30
A1
B1
C1
A2
B2
RL
RM
RH
RT
AU
SE
RUN
SU
IPF
OL
FU
C2 10E 10
2
5
STOP
MRS
RES
SD
FM
AM
SD
SD
STF
STR
JOG
Control circuit terminal *
4
Terminal screw size: M3.5
Tightening torque: 1.2N·m
* Refer to instruction manuals of
1
options for the available control
terminals other than the standard
control circuit terminal.
CS
PC
STF, etc
Inverter
SD
External signal input using transistor
+24V

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