Parameter
Table 8-58 Additional parameters to set the extended ramp-function generator
Parameter Description Factory setting
p1115 Ramp-function generator selection 1
p1120[D] Ramp-function generator ramp-up time 10 s
p1121[D] Ramp-function generator ramp-down time 30 s
p1130[D] Ramp-function generator initial rounding time 0 s
p1131[D] Ramp-function generator nal rounding time 2 s
p1134[D] Ramp-function generator round‐
ing type
0: Continuous smoothing
1: Discontinuous smoothing
0
p1135[D] OFF3 ramp-down time 30 s / 0 s
p1136[D] OFF3 initial rounding time 2 s / 0 s
p1137[D] OFF3 nal rounding time 0 s
Additional information is provided in the parameter list of the List Manual.
Setting the extended ramp-function generator
Procedure
1. Enter the highest possible speed setpoint.
2. Switch on the motor.
3. Evaluate your drive response.
– If the motor accelerates too slowly, then reduce the ramp-up time.
An excessively short ramp-up time means that the motor will reach its current limiting
when accelerating, and will temporarily not be able to follow the speed setpoint. In this
case, the drive exceeds the set time.
– If the motor accelerates too fast, then extend the ramp-up time.
– Increase the initial rounding if the acceleration is jerky.
– In most applications, it is sucient when the nal rounding is set to the same value as the
initial rounding.
4. Switch o the motor.
Advanced commissioning
8.17 Setpoint calculation
Distributed converter for SIMOGEAR geared motors
276 Operating Instructions, 10/2020, FW V4.7 SP13, A5E31298649B AL
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