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Start Self-holding Selection (stop Signal): Pr. 60 To Pr. 63 Setting "5; Output Shut-off (mrs Signal): Pr. 60 To Pr. 63 Setting "6 - Mitsubishi Electric FR-S520E Series Instruction Manual

Transistored inverter.
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1.5.4
Start self-holding selection (STOP signal):
"5"
setting
This connection example is used when you want
to self-hold the start signal (forward rotation,
reverse rotation).
* Connected to the STOP signal to avoid
forward or reverse rotation if forward or
reverse rotation and stop are turned on
simultaneously.
1.5.5
Output shut-off (MRS signal):
Short the output stop terminal MRS-SD during inverter output to cause the inverter to
immediately stop the output. Open terminals MRS-SD to resume operation in about
10ms. Terminal MRS may be used as described below:
(1) To stop the motor by
mechanical brake (e.g.
electromagnetic brake)
Terminals MRS-SD must be
shorted when mechanical brake is
operated and be opened before
the motor that has stopped
restarts.
(2) To provide interlock to
disable operation by the
inverter
After MRS-SD have been shorted,
the inverter cannot be operated if
the start signal is given to the
inverter.
(3) To coast the motor to stop
The motor is decelerated according to the preset deceleration time and is stopped
by operating the DC injection brake at 3Hz or less. By using terminal MRS, the
motor is coasted to a stop.
How to use the input signals (assigned terminals
Stop
Forward
rotation
Reverse
rotation
(Wiring example for sink logic)
Pr. 60 to Pr. 63 setting
Motor coasted
to stop
Across
ON
MRS -SD
Across
ON
SD
STF-
(STR)
39
RL, RM, RH, STR)
Pr. 60 to Pr. 63
*
STOP
SD
STF
STR
"6"
0.5Hz
Pr. 13
"starting
frequency"
1

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