Trane TR200 Series Programming Manual page 78

3-40 Ramp 1 Type
Option:
[0] * Linear
[1] S-ramp Const Jerk
[2] S-ramp Const 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:
3.00 s* [0.01 - 3600.00 s]
3-42 Ramp 1 Ramp Down Time
Range:
3.00 s* [0.01 - 3600.00 s]
TR200 Programming Guide
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.
Acceleration with lowest possible jerk.
S-ramp based on the values set in par.3-41
par.3-42 Ramp 1 Ramp Down
Function:
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
ramping. See ramp-down time in par.3-42
t n
acc × norm
par
.3 − 41 =
ref rpm
Function:
Enter the ramp-down time, i.e. the deceleration time from par.1-25
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.3-41
Time.
t n
×
dec norm
par
.3 − 42 =
ref rpm
Parameter Description
Ramp 1 Ramp up Time
Time.
Current Limit
Ramp 1 Ramp Down
par
.1 − 25
s
Ramp 1 Ramp up
par
.1 − 25
s
and
during
Time.
Motor
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