Mitsubishi FR - S500 Instruction Manual page 38

(2) Three-wire type connection (STF, STR, STOP)
A three-wire type connection is shown
on the right. Assign the start self-holding
signal (STOP) to any of the input
terminals. To make a reverse rotation
start, set Pr. 63 to "- - -" (factory setting).
1) Short the signal STOP-SD to enable
the start self-holding function. In this
case, the forward/reverse rotation
signal functions only as a start signal.
(Note) Assign the stop signal to any of
Pr. 60 to Pr. 62 (input terminal
function selection).
2) If the start signal terminal STF (STR)-
SD are shorted once, then opened, the
start signal is kept on and starts the
inverter. To change the rotation
direction, short the start signal STR
(STF)-SD once, then open it.
(Note) Assign the stop signal to any of
Pr. 60 to Pr. 62 (input terminal
function selection).
3) The inverter is decelerated to a stop by
opening the signal STOP-SD once. For
the frequency setting signal and the
operation of DC dynamic brake at a
stop time, refer to paragraphs 2) to 4) in
(1) Two-wire type connection. The right
diagram shows 3-wire type connection.
4) When the signal JOG-SD is shorted, the STOP signal is invalid and the JOG signal
has precedence.
5) If the output stop signal MRS-SD is shorted, the self-holding function is not
deactivated.
DC Injection Brake and Coasting to Stop functionality
Operation External Operation or Combined
Mode
Terminals STF
DC Injection disconnected
Brake
DC injection
brake operated at
not more than
DC injection
"DC injection
brake enabled
brake operation
frequency" set in
Pr. 10
Coasted to a stop
at not more than
DC injection "DC injection
brake operation
brake disabled
frequency" set in
Pr. 10
*1: Also stopped by the
Operation
Pr. 79 = "0", "2", "3"
(STR)-SD Set frequency
changed to 0Hz
(*1)
DC injection
brake operated at
0.5Hz or less.
Coasted to a stop
at 0.5Hz or less.
STOP
key. Refer to page 94.
RESET
NFB
Power
supply
Forward
rotation start
Stop
Reverse
rotation start
ON
Start
Stop
3-wire type connection example
PU Operation or Combined
Pr. 79 = "0", "1", "4"
Stop key
DC injection
brake operated at
not more than
"DC injection
brake operation
frequency" set in
Pr. 10
Coasted to a stop
at not more than
"DC injection
brake operation
frequency" set in
Pr. 10
29
R<L >,S<N>,T
1
Inverter
STF
STR (Pr.63= "- - -" )
STOP
SD
Time
ON
Operation
Set frequency
changed to 0Hz
DC injection
brake operated at
0.5Hz or less.
Coasted to a stop
at 0.5Hz or less.
1