KEB COMBIVERT S4 Instruction Manual page 31

Deceleration Time
Calculation Example:
Torque Limit
Maximum Setpoint Speed
8. Parameter Description
The parameter defines the time required to decelerate from rated speed of the
servo system (3000/4000/6000 U/min) to 0 U/min. The behaviour of the actual
deceleration time is proportional to the speed change.
Rated speed [U/min]
3000/
4000/
6000
CP.8
Deceleration time [s]
Calculation of deceleration time to be adjusted:
The drive shall decelerate from 3000 U/min to 1000 U/min in 0,05 s!
Rated speed of the drive: 4000 U/min
delta n = 3000 U/min – 1000 U/min = 2000 U/min
actual deceleration time
CP.8 = –––––––––––––––––––––––––
delta n
0,05s
CP.8= ––––––––––
2000 U/min
In this example parameter CP.8 must be adjusted to 0,1 s !
Wenn CP.7 und CP.8 = 0.00 s
dann CP.16 und CP.17 ohne Funktion
The maximum permissible torque of the drive is defined with parameter CP.9.
M
CP.9
0 Nm
0 V +10 V
Analog limitation:+
Terminals X2.16 / X2.17
Defines the maximum output speed
of the servo controller
In case the preset speed is too high the value is limited internally
to the maximum permissible value!
Setting range:
Resolution:
Factory setting:
Customer setting:
CP.8 actual. deceleration time
–––––––––––– = –––––––––––––––––––––
Rated speed
•Rated speed
• 4000 U/min = 0,1 s
Setting range:
Resolution:
Factory setting:
Customer setting:
Setting range:
Resolution:
Factory setting:
Customer setting:
ANTRIEBSTECHNIK
0...320 s
0,01 s
0,05 s
s
delta n
0...5 x M
N
0,1 Nm
3 x M
N
Nm
0...9999 U/min
0,5 U/min
Rated speed
U/min
E 31