Setting The Ramp Time - Siemens SINAMICS V20 Operating Instructions Manual

Commissioning via the built-in BOP
5.6 Function commissioning
5.6.2.6

Setting the ramp time

Functionality
The ramp-function generator in the setpoint channel limits the speed of setpoint changes.
This causes the motor to accelerate and decelerate more smoothly, thereby protecting the
mechanical components of the driven machine.
Setting ramp-up / down time
The ramp-up and ramp-down times can be set independently of each other by P1120 and
P1121.
Setting parameters
Parameter Function
P1082[0...2] Maximum frequency [Hz]
P1120[0...2] Ramp-up time [s]
P1121[0...2] Ramp-down time [s]
102
Setting
This parameter sets maximum motor frequency at which mo-
tor will run irrespective of the frequency setpoint.
Range: 0.00 to 550.00 (factory default: 50.00)
This parameter sets the time taken for motor to accelerate
from standstill up to maximum motor frequency (P1082) when
no rounding is used.
Range: 0.00 to 650.00 (factory default: 10.00)
This parameter sets the time taken for motor to decelerate
from maximum motor frequency (P1082) down to standstill
when no rounding is used.
Range: 0.00 to 650.00 (factory default: 10.00)
Operating Instructions, 11/2016, A5E34559884-006
SINAMICS V20 Inverter