Panasonic minas a4 series Instruction Manual page 47

Servo-ON/OFF Action While the Motor Is in Motion
(Timing at emergency stop or trip. Do not repeat this sequence. During the normal operation, stop the motor,
then make Servo-ON/OFF action.)
Servo-ON input
(SEV-ON)
Dynamic brake
Motor energization
Brake release output
(BRK-OFF)
Motor rotational
speed
<Cautions>
*1. t1 will be a shorter time of either the setup value of Pr6B or elapsing time for the motor speed to fall below
30r/min.
*2. Even though the SRV-ON signal is turned on again during the motor deceleration, Servo-ON will not be
activated until the motor stops.
*3. For the action of dynamic brake at alarm occurrence, refer to an explanation of Pt69, "Sequence at
Servo-OFF ("Parameter setup" at each control mode) as well.
*4. Servo-ON will not be activated until the motor speed falls below approx. 30r/min.
*5. For the motor energization during deceleration at Servo-OFF, refer to an explanation of Pr69, "Sequence
at Serve-OFF ("Parameter setup" at each control mode) as well.
at Servo-ON
OFF
*4
engaged *3
not-energized
approx.40ms
engaged
(OFF)
Motor rotational speed
approx.30r/min
servo validated
No servo-ON until the motor speed
falls below approx. 30r/min.
at Servo-OFF
ON
released
energized
approx.2ms
released (ON)
Motor rotational
speed
approx.30r/min
released (ON)
Motor rotational
speed
approx.30r/min
[Preparation]
OFF
1 to 5ms
engaged *3
not-energized *5
Setup value of
Pr6B
engaged
(OFF)
t1 *1
when setup
Setup value of
value of Pr6B
Pr6B
is shorter,
engaged (OFF)
t1 *1
when time to fall
below 30r/min
is shorter,
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