Servo-On/Off Action While The Motor Is In Motion - Panasonic MINAS-A5BL Series Manual

9-2-4 Servo-ON/OFF action while the motor is in motion

Servo-ON
command
Dynamic brake
Motor energization
Brake release output
(BRK-OFF)
Motor rotational speed
*1. t1 will be a shorter time of either the setup value of Pr 4.38 "Mechanical brake action at running setup" or
elapsing time for the motor speed to fall below Pr 4.39 "Brake release speed setup".
*2. Even when the servo-ON command is turned on again while the motor is decelerating, transition to servo-ON is
not performed until the motor stops.
*3. For the action of dynamic brake at alarm occurrence, refer to an explanation of Pr 5.06 (Sequence at Servo-Off)
as well.
*4. Servo-ON will not be activated until the motor speed falls below approx. 30 r/min.
*5. For the motor energization during deceleration at Servo-OFF depends on the setup value of Pr 5.06 (Sequence at
Servo-Off).
*6. A brake release output (BRK-OFF) is different from the set brake of 60FEh via EtherCAT communication.
For information on the set brake output details, refer to the section 6-9-3 in the Technical Reference EtherCAT
Communication Specification (SX-DSV02830).
R1.00
(Timing at emergency stop or trip. Do not repeat this sequence.)
ON
OFF
*4
Engaged
*3
Release
Not-energized
Approx. 60 ms
Output Tr OFF
*6
(Brake engage)
Motor rotational speed
Approx.30 r/min
Servo validated
No servo-ON until the motor speed
falls below approx. 30 r/min.
Approx.1 to 5 ms
Engaged
Not-energized
Energized
Approx. 4 ms
Setup value of Pr 4.38
Output Tr ON
(Brake release)
Motor rotational speed
Setup value of Pr 4.39
Setup value of Pr 4.38
Output Tr ON
(Brake release)
*1
t1
Motor rotational speed
Setup value of Pr4.39
No. SX-DSV02829 -
OFF
*3
*5
Output Tr OFF
(Brake engage)
*1
t1
When setup value of
Pr4.38 is shorter
Output Tr OFF
(Brake engage)
When time to fall below
value of Pr4.39 is shorter
Motor Business Unit, Panasonic Corporation
197-