Mitsubishi Electric FR-A700 Instruction Manual page 66

Control circuit specifications
Common terminals of the control circuits PC, 5, SE
Terminals PC, 5, and SE are all common terminals (0V) for I/O signals and are isolated from
each other. 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.
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 below.
3 - 28
Inverter
PC
STF, etc.
Fig. 3-19:
External signal input using transistor
Wiring
I001220E