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Mitsubishi Electric FR-A500 Instruction Manual Page 33

Transistorized inverter.
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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.
PC
Current
STF
STR
When using an external power supply for transistor output, use terminal SD as a common to prevent
misoperation caused by undesirable current.
(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 switchover operation.
<Example: Automatic restart after instantaneous power failure in sink logic>
Short 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 (98.43 feet.).
Do not short terminals PC-SD.
When terminal PC is used as a 24V power supply, leakage current from transistor output cannot be
prevented.
R
R
AY-80 type
transistor output
module.
9
1
2
10
Current flow
24
INSTALLATION AND WIRING
Inverter
RUN
SE
24VDC
Inverter
PC
24VDC
STF
(SD)
STR
SD
AX80
1
R
R
9
STOP
MRS
Stop
RES
SD
Forward
rotation
STF
Reverse
rotation
STR
CS
SD
(Short)

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    good manual and it is very good to understand the contant of inverter and i lernt many things in this manual