Mitsubishi Electric fr-e700 series, Instruction Manual

Page: 58 / 608

Control circuit specifications Wiring
3 - 22
Common terminals of the control circuits PC, 5, SE
Terminals PC, 5, and SE are all common terminals (0 V) 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, RH, RM, RL and RES).
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 or 4) and analog output ter-
minal 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 and FU.
The contact input circuit is isolated from the internal control circuit by photocoupler.
Signal inputs by contactless switch
The contacted input terminals of the inverter (STF, STR, RH, RM, RL and RES) can be controlled using
a transistor instead of a contacted switch as shown below. According to the adjusted control logic,
PNP transistors (positive logic) or NPN transistors (negative logic) must be used to activate the inputs.
Fig. 3-14:
External signal input in source logic using transistor
(initial setting)
I001020E
PC
STF, etc.
Inverter