2-42
When an Error (Alarm) Has Occurred (at Servo-ON Command)
Caution
*1. t1 will be a shorter time of either the setup value of Pr4.38[Mechanical brake action at
running setup] or elapsing time for the motor speed to fall below Pr4.39[Brake release
speed setup].
t1 will be 0 when the motor is in stall regardless of the setup pf Pr4.37.
*2. When an alarm is generated, the dynamic brake operates according to Pr5.10 Se-
quence at alarm.
*3. Servo ON status output (SRV-ST) is a signal indicating that it has received the Servo-
On input; please note that it is not an indication showing command input is possible.
*4. The setting where Pr4.38 “Mechanical braking setting during operation” = Pr6.14
“Immediate stop time in case of alarm” is recommended.
When set to Pr4.38≤Pr6.14, the brake will be operated after lapse of Pr4.38 time.
When set to Pr4.38>Pr6.14, the brake will not operate even after lapse of Pr4.38
time, but will operate when transitioned to OFF state.
2
Preparation
9.
Timing Chart
Alarm
●
DB/Free run deceleration operation
●
Immediate stop operation
Servo on status
output(SRV-ST)
Servo on status on
Servo on status off
output Tr ON
output Tr OFF
*
3
normal
released
energized
output Tr ON
(not Alarm)
alarm
engaged
*
2
non-energized
output Tr OFF (not ready)
output Tr OFF (Alarm)
0.5 ms to 5 ms
t1
*
1
output Tr OFF (Break engage)
engaged (OFF)
output Tr ON
(Break release)
Setup value of Pr4.39
output Tr ON
(Break release)
motor speed
motor speed
t1
*
1
Setup value of Pr4.38
Alarm
Dynamic brake
Motor energization
Servo-Ready output
(S-RDY)
Servo-Alarm output
(ALM)
External brake
release output
(BRK-OFF)
when time to fall
below value of
Pr4.39 is shorter,
output Tr ON
(ready)
value of Pr4.38
Setup value of Pr4.39
when setup
value of Pr4.38
is shorter,
Servo on status
output(SRV-ST)
output Tr ON
output Tr OFF
normal
released
energized
output Tr ON
(not Alarm)
alarm
engaged
*
2
non-energized
output Tr OFF (not ready)
output Tr OFF (Alarm)
0.5 ms to 5 ms
output Tr OFF (Break engage)
output Tr OFF (Break engage)
output Tr ON
(Break release)
output Tr ON
(Break release)
motor speed
Setup value of Pr6.14
Alarm
Dynamic brake
Motor energization
Servo-Ready output
(S-RDY)
Servo-Alarm output
(ALM)
External brake
release output
(BRK-OFF)
when time to fall
below value of
Pr4.39 is shorter,
output Tr ON
(ready)
motor speed
Setup value of Pr4.39
Setup value of Pr4.39
Setup value of Pr4.38
Setup value of Pr4.38
when setup
value of Pr4.38
is shorter,
t1
*1
*3
*4
t1
*1
Buy: www.ValinOnline.com | Phone 844-385-3099 | Email: [email protected]