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Installation and wiring, 4) how to use terminals “stop”, “cs” and “pc – MITSUBISHI ELECTRIC FR-A500L User Manual

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INSTALLATION AND WIRING

15

5) Source logic type

• In this logic, a signal switches on when a current flows into the corresponding signal input terminal.

Terminal PC is common to the contact input signals. Terminal SE is common to the open collector
output signals.

DC24V

RUN

SU

SE

1

2

9

8

R

R

R

R

AX80

PC

STF

STR

R

R

Current

• When using an external power supply for transistor output, use terminal SD as a common to prevent

misoperation caused by leakage current.

AY-80

9

1

2

10

PC

STF

STR

SD

DC24V
(SD)

D

C

24V

Inverter

(4) How to use terminals “STOP”, “CS” and “PC”

1) Using the “STOP” terminal

A connection example (for sink logic) for self-holding the start signal (forward
rotation, reverse rotation) is shown on the right.

2) Using the “CS” terminal

This terminal is used to perform automatic restart after instantaneous power failure
and commercial power supply-inverter switch-over operation.

Connect terminals CS-SD and set a value other than “9999” in Pr. 57 “coasting time
for automatic restart after instantaneous power failure”.

3) Using the “PC” terminal

This terminal can be used as 24VDC power output using SD as a common terminal.
Specifications: 18V to 26VDC, 0.1A permissible current
Note that the wiring length should be within 30m.
Do not short terminals PC-SD.
When terminal PC is used as a 24V power supply, leakage current from transistor
output cannot be prevented.

MRS

RES

SD

STF

STR

STOP

Reverse
rotation

Stop

Forward
rotation

CS

SD

(Short)