Mitsubishi Electric FR-A741-11K, Instrucion Manual

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Control circuit specifications
2
WIRING
2.3.3 Control circuit terminal layout
(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) 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.
(2) Signal inputs by contactless switches
Terminal screw size: M3.5
Tightening torque: 1.2N·m
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.
External signal input using transistor
A1 B1 C1 A2 B2 C2 10E 10 2 5 4
1 AM SD RES MRS STOP AU RT RH RM RL
PC CS JOG STR STF SD SD FU OL IPF SU RUN SE
FM
+24V
STF, etc
Inverter
SD