Danfoss VLT DriveMotor FCP 106 Programming Manual page 56

Parameters
4.4.4 3-5* Ramp 2
This parameter group configures ramp 2 parameters.
3-51 Ramp 2 Ramp Up Time
Range:
Size [0.05 -
related 3600 s]
*
4 4
3-52 Ramp 2 Ramp Down Time
Range:
Size
related 3600 s]
*
4.4.5 3-8* Other Ramps
3-80 Jog Ramp Time
Range:
Size [0.05
related - 3600
*
s]
3-81 Quick Stop Ramp Time
Range:
Size [0.05 -
related 3600 s]
*
54
Function:
If asynchronous motor is selected, enter
acceleration time from 0 Hz to
parameter 1-23 Motor Frequency. If PM
motor is selected, 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 up.
Function:
[0.05 - 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 down.
Function:
Enter the jog ramp time, which is the
acceleration/deceleration time between 0 Hz
to parameter 1-23 Motor Frequency. 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.
Function:
Enter the quick stop ramp time from the
parameter 1-23 Motor Frequency 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. Quick stop is
activated with a signal on a selected digital
input or via the serial communication port.
Danfoss A/S © 11/2015 All rights reserved.
®
VLT DriveMotor FCP 106/FCM 106
3-85 Check Valve Ramp Time
Range:
0 s [0 -
*
60 s]
Motor Speed
High
Motor Speed
Low
Illustration 4.9 Check Valve Ramp
3-87 Check Valve Ramp End Speed [HZ]
Range:
Size related
Function:
To protect ball check valves in a stop situation, the
check valve ramp can be utilized as a speed down
ramp rate. Set the ramp rate from
parameter 4-11 Motor Speed Low Limit [RPM] or
parameter 4-12 Motor Speed Low Limit [Hz] to check
valve ramp end speed, set in parameter 3–86 Check
Valve Ramp End Speed [RPM] or parameter 3–
87 Check Valve Ramp End Speed [HZ]. When
parameter 3–85 Check Valve Ramp Time is different
from 0 s, the check valve ramp time is effectuated
and is used to ramp down the speed from motor
speed low limit to the check valve end speed in
parameter 3–86 Check Valve Ramp End Speed [RPM]
or parameter 3–87 Check Valve Ramp End Speed
[HZ]. See Illustration 4.9.
Speed
Check valve
End Speed
Function:
[ 0 - 400 Set the speed in [Hz] below motor
*
Hz] speed low limit where the check
calve ramp is no longer active. See
Illustration 4.9.
Normal
Ramp
Time
MG03N202