Trane TR200 - Page 79

3-40 Ramp 1 Type
Option: Function:
Select the ramp type, depending on requirements for acceleration/de-
celeration.
A linear ramp will give constant acceleration during ramping. An S-ramp
will give non-linear acceleration, compensating for jerk in the applica-
tion.
[0] * Linear
[1] S-ramp Acceleration with lowest possible jerk.
[2] S-ramp Const Time S-ramp based on the values set in par.3-41
Ramp 1 Ramp-up Time and
par.3-42
Ramp 1 Ramp-down Time.
NOTE
If S-ramp [1] is selected and the reference during ramping is changed, the ramp time may be prolonged in order to
realize a jerk-free movement, which may result in a longer start or stop time.
Additional
adjustment of the S-ramp ratios or switching initiators may be necessary.
3-41 Ramp 1 Ramp-up Time
Range: Function:
Applica-
tion de-
pend-
ent*
[Application dependant]
3-42 Ramp 1 Ramp-down Time
Range: Function:
Applica-
tion de-
pend-
ent*
[Application dependant]
3-45 Ramp 1 S-ramp Ratio at Accel. Start
Range: Function:
50 %* [Application dependant] Enter the proportion of the total ramp-up time (par.3-41
Ramp 1 Ramp-
up Time) in which the acceleration torque increases. The larger the
percentage value, the greater the jerk compensation achieved, and thus
the lower the torque jerks occurring in the application.
3-46 Ramp 1 S-ramp Ratio at Accel. End
Range: Function:
50 %* [Application dependant] Enter the proportion of the total ramp-up time (par.3-41
Ramp 1 Ramp-
up Time) in which the acceleration torque decreases. The larger the
percentage value, the greater the jerk compensation achieved, and thus
the lower the torque jerks in the application.
Parameter Description
4-42 TR200 Programming Guide