3-5* Ramp 2
Choosing ramp parameters, see 3-4*.
3-51 Ramp 2 Ramp up Time
Range: Function:
3.00 s* [0.01 - 3600.00 s] Enter the ramp-up time, i.e. the acceleration time from 0 RPM to par.
1-25
Motor Nominal Speed. Choose a ramp-up time such that the output
current does not exceed the current limit in par.4-18
Current Limit during
ramping. See ramp-down time in par.3-52
Ramp 2 Ramp down Time.
par
. 3 − 51 =
tacc
×
nnorm
par
. 1 − 25
ref
rpm
s
3-52 Ramp 2 Ramp down Time
Range: Function:
3.00 s* [0.01 - 3600.00 s] Enter the ramp-down time, i.e. the deceleration time from par.1-25
Motor
Nominal Speed to 0 RPM. Choose a ramp-down time such that no over-
voltage arises in the inverter due to regenerative operation of the motor,
and such that the generated current does not exceed the current limit set
in par.4-18
Current Limit. See ramp-up time in par.3-51 Ramp 2 Ramp up
Time.
par
.3 − 52 =
tdec
×
nnorm
par
. 1 − 25
ref
rpm
s
3-55 Ramp 2 S-ramp Ratio at Accel. Start
Range: Function:
50 %* [1 - 99. %] Enter the proportion of the total ramp-up time (par.3-51
Ramp 2 Ramp
up Time) in which the acceleration torque increases. The larger the per-
centage value, the greater the jerk compensation achieved, and thus the
lower the torque jerks in the application.
3-56 Ramp 2 S-ramp Ratio at Accel. End
Range: Function:
50 %* [1 - 99. %] Enter the proportion of the total ramp-up time (par.3-51
Ramp 2 Ramp
up Time) in which the acceleration torque decreases. The larger the per-
centage value, the greater the jerk compensation achieved, and thus the
lower the torque jerks in the application.
3-57 Ramp 2 S-ramp Ratio at Decel. Start
Range: Function:
50 %* [1 - 99. %] Enter the proportion of the total ramp-down time (par.3-52
Ramp 2 Ramp
down Time) where the deceleration torque increases The larger the per-
centage value, the greater the jerk compensation achieved, and thus the
lower the torque jerks in the application.
3-58 Ramp 2 S-ramp Ratio at Decel. End
Range: Function:
50 %* [1 - 99. %] Enter the proportion of the total ramp-down time (par.3-52
Ramp 2 Ramp
down Time) where the deceleration torque decreases. The larger the
percentage value, the greater the jerk compensation achieved, and thus
the lower the torque jerks in the application.
3-8* Other Ramps
Configure parameters for special ramps e.g. Jog or Quick Stop.
Parameter Description
TR200 Programming Guide 79