Danfoss VLT CDS 803 Programming Guide

3-41 Ramp 1 Ramp Up Time
Range: Function:
Size
related*
[0.05 - 3600
s]
Enter acceleration time from 0 RPM
to parameter 1-25 Motor Nominal
Speed. 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.
3-42 Ramp 1 Ramp Down Time
Range: Function:
Size
related*
[0.05 - 3600
s]
Enter deceleration time from
parameter 1-25 Motor Nominal Speed
to 0 RPM. Select a ramp-down time
such that the output current does
not exceed the current limit in
parameter 4-18 Current Limit during
ramping. See ramp-up time in
parameter 3-41 Ramp 1 Ramp Up
Time.
3.4.4 3-5* Ramp 2
This parameter group congures ramp 2 parameters.
3-51 Ramp 2 Ramp Up Time
Range: Function:
Size
related*
[0.05 - 3600
s]
Enter acceleration time from 0 Hz
to parameter 1-23 Motor Frequency if
asynchronous motor is selected.
Enter acceleration time from 0 RPM
to parameter 1-25 Motor Nominal
Speed if PM motor is selected.
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 3-52 Ramp 2 Ramp Down
Time.
3-52 Ramp 2 Ramp Down Time
Range: Function:
Size
related*
[0.05 - 3600
s]
Enter the ramp-down time, that is,
the deceleration time from
parameter 1-25 Motor Nominal Speed
to 0 RPM. Select a ramp-down time
such that no overvoltage occur 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
3-52 Ramp 2 Ramp Down Time
Range: Function:
ramp-up time in
parameter 3-51 Ramp 2 Ramp Up
Time.
par . 3 − 52 =
tdec × nnom par . 1 − 25
ref  rpm
 s
3.4.5 3-8* Other Ramps
3-80 Jog Ramp Time
Range: Function:
Size
related*
[0.05 - 3600
s]
Enter the jog ramp time, that is, the
acceleration/deceleration time
between 0 Hz to
parameter 1-25 Motor Nominal
Speed. Ensure that the resulting
output current required for the
given jog ramp time does not
exceed the current limit in
parameter 4-18 Current Limit. The
jog ramp time starts after activation
of a jog signal via the control panel,
a selected digital input, or the serial
communication port.
3-81 Quick Stop Ramp Time
Range: Function:
10.00 s* [0.05 - 3600
s]
Enter the quick stop ramp time
from the parameter 1-25 Motor
Nominal Speed to 0 Hz. During
ramping, no overvoltage may occur
in the inverter, nor may the
generated current exceed the limit
in parameter 4-18 Current Limit. It is
activated with a signal on a
selected digital input or via the
serial communication port.
3-82 Starting Ramp Up Time
Range: Function:
15 s [0.01 - 3600
s]
To ensure proper lubrication within
the shortest possible time, a fast
ramp needs to be used during start
up, untill start speed is reached.
3-83 Stopping Ramp Down Time
Range: Function:
15 s [0.01 - 3600
s]
When a stop command is applied,
the speed shall ramp down.
Parameters Programming Guide
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Danfoss VLT CDS 803 Specifications

General

Brand	Danfoss
Model	VLT CDS 803
Category	DC Drives
Language	English