Danfoss VLT AutomationDrive FC 360 Programming Manual page 53

Parameter Descriptions
3-40 Ramp 1 Type
Option: Function:
Select the ramp type, depending on
requirements for acceleration/deceleration. A
linear ramp gives constant acceleration during
ramping. A sine 2 ramp gives non-linear
acceleration.
[0] Linear
*
[2] Sine 2 (Only be used with speed control mode.) S-ramp
Ramp based on the values set in parameter 3-41 Ramp
1 Ramp Up Time and parameter 3-42 Ramp 1
Ramp Down Time.
3-41 Ramp 1 Ramp Up Time
Range: Function:
Size [0.01 - Enter the ramp-up time, that is the
related 3600 s] acceleration time from 0 Hz to the
*
synchronous motor speed n
parameter 1-23 Motor Frequency or from 0
NM to the nominal torque if torque configu-
ration modes are selected. It is applicable
for Ramp 1 to Ramp 4. Select a ramp-up
time such that the output current does not
exceed the current limit in
parameter 4-18 Current Limit during ramping.
See ramp-down time in
parameter 3-42 Ramp 1 Ramp Down Time.
Par . 3 − 41 =
3-42 Ramp 1 Ramp Down Time
Range: Function:
Size [0.01 - Enter the ramp-down time, that is the
related 3600 s] deceleration time from the synchronous
*
motor speed n
nominal torque to 0 NM if the torque
configuration modes are selected. Select a
ramp-down time such that no overvoltage
occurs in the inverter due to regenerative
operation of the motor, and such that the
generated current does not exceed the
current limit set in parameter 4-18 Current
Limit. See ramp-up time in
parameter 3-41 Ramp 1 Ramp Up Time.
Par . 3 − 42 =
MG06C702
Programming Guide
S
t s x n Hz
acc s
ref Hz
to 0 Hz or from the
s
t s x n Hz
dec s
ref Hz
Danfoss A/S © 06/2017 All rights reserved.
4.4.4 3-5* Ramp 2
This parameter group configures ramp 2 parameters.
3-50 Ramp 2 Type
Option: Function:
Select the ramp type, depending on
requirements for acceleration/deceleration. A
linear ramp gives constant acceleration during
ramping. A sine 2 ramp gives non-linear
acceleration.
[0] Linear
*
[2] Sine 2 S-ramp based on the values set in
Ramp parameter 3-51 Ramp 2 Ramp Up Time and
parameter 3-52 Ramp 2 Ramp Down Time.
3-51 Ramp 2 Ramp Up Time
Range: Function:
Size [0.01 - Enter the ramp-up time, which is the
related 3600 s] acceleration time from 0 Hz to the rated
*
motor speed n
such that the output current does not
exceed the current limit in
parameter 4-18 Current Limit during
ramping. See ramp-down time in
parameter 3-52 Ramp 2 Ramp Down Time.
Par . 3 − 51 =
3-52 Ramp 2 Ramp Down Time
Range: Function:
Size [0.01 - Enter the ramp-down time, that is the
related 3600 s] deceleration time from the rated motor
*
speed n
s
torque to 0 NM if the torque configuration
modes are selected. Select a ramp-down
time such that no overvoltage arises in the
frequency converter due to regenerative
operation of the motor, and such that the
generated current does not exceed the
current limit set in parameter 4-18 Current
Limit. See ramp-up time in
parameter 3-51 Ramp 2 Ramp Up Time.
Par . 3 − 52 =
. Select a ramp-up time
s
t s x n Hz
acc s
ref Hz
to 0 Hz or from the nominal
t s x n Hz
dec s
ref Hz
51
4 4