Panasonic Minas-LIQI Series Technical Reference page 78

8－2－2 Timing Chart of Servo On/Off When Monitor is Turned Off
（For normal operations, stop the motor before turning the servo control on and off）
Input coupler OFF
Dyna mic brake
(SRV-ON)
Dynamic brake
Power to the motor
Brake r elease output
(BRK-OFF)
*1. t1 depends on the set value specified in Pr4.37 "Mechanical brake action at stalling setup".
*2. The dynamic brake operation at servo-off depends on the set value specified in Pr5.06 "Sequence at
servo-off"
*3. The servo control is not turned on until the motor speed is approximately 30 r/min or less
8－2－3 Timing Chart of Servo On/Off When Motor is Operating
(This chart shows the timing for the emergency stop and trip. It is not intended for repeated use.)
Input c oupler
Servo on input
OFF
(SRV-ON)
Dynamic brake Appli ed
No power
Power to the motor
Brake release output Output Tr OFF
( brake applied)
(BRK-OFF)
Motor speed
Motor rotation speed
T he se rvo control is not turned on until
the motor speed is approx. 30 r/min or
less.
The time t1 will be either the value used to set Pr4.38 "Mechanical brake action at running setup" or when
*1.
the motor speed is reduced to the setting for Pr4.39 "Brake release speed setup" or less, whichever comes
first.
If the SRV-ON signal is turned on again during the deceleration of the motor, the servo control does not transfer to the
*2.
servo-on state until the motor stops.
*3. The operation of the dynamic brake during the servo-off is according to the setting value for Pr5.06
"Sequence at servo-off".
*4. The servo control is not turned on until the motor speed is approximately 30 r/min or less.
*5. Whether electricity is turned on to the motor during the servo-off deceleration depends on the value
used to set Pr5.06 "Sequence at servo-off"
Input coupler ON
Approx 2ms
*3
Released
Applied
No power
Approx 60ms
Ap pro x 4 ms
Output Tr OFF
(brake applied)
Input coupler ON
*4
*3
Released
Powe r to the motor
Ap pro x6
Ap pro x4m s
0m s
Output Tr ON
(brake released)
Setting value for P r4.39
f or the motor spee d
App rox 30 r/ min
Servo effective
Output Tr ON
(brake re leased)
Setting value for
Pr4.39 for the motor
Motor Business Unit, Appliances Company, Panasonic Corporation
Input c oupler OFF
1～6ms
t1
Power to the mot or
O utput Tr OFF
Output Tr ON
(brake applied)
(brake re lease d)
Input coupler OFF
Approx1~5ms
*3
Appli ed
*5
No power
Setting value for
Pr4.38
Output Tr OFF
(brake applied)
*1
t1
Setting value for
Pr4.38
Output T r OF F
(brake applied)
*1
t1
speed
№SR-ZSV00039 － 74 －
*2
Applied
*1
No power
In case the setting value
for Pr4.38 is reache d
fir st
In case the setting value for
Pr4.39 is r eache d first