Danfoss VLT AutomationDrive FC 302 Instruction Manual page 56

Programming
NOTICE!
It is important to set motor parameters in parameter
group 1-2* Motor Data correctly since these form part of
the AMA algorithm. An AMA must be performed to
achieve optimum dynamic motor performance. It may
take up to 10 min, depending on the power rating of the
motor.
NOTICE!
Avoid generating external torque during AMA.
NOTICE!
6 6
If one of the settings in parameter group 1-2* Motor
Data is changed, parameters 1-30 to 1-39, the advanced
motor parameters, return to default setting.
3-02 Minimum Reference
Range:
Size [ -999999.999 -
related par. 3-03
*
ReferenceFeed-
backUnit]
54
Instruction Manual
Function:
Enter the Minimum Reference. The
Minimum Reference is the lowest
value obtainable by summing all
references.
Minimum Reference is active only
when 3-00 Reference Range is set to
Min.- Max. [0].
The minimum reference unit
matches:
•
The choice of configu-
ration in
1-00 Configuration Mode
Configuration Mode: for
Speed closed-loop [1], RPM;
for Torque [2], Nm.
•
The unit selected in
3-01 Reference/Feedback
Unit.
Danfoss A/S © Rev. 2014-02-07 All rights reserved.
3-03 Maximum Reference
Range: Function:
Size [ par. 3-02 - Enter the maximum reference. The
related 999999.999 maximum reference is the highest
*
ReferenceFeed- value obtainable by adding all
backUnit] references together.
The Maximum Reference unit
matches:
3-41 Ramp 1 Ramp-up Time
Range: Function:
Size [ 0.01 - Enter the ramp-up time, i.e., the
related 3600 s] acceleration time from 0 RPM to the
*
synchronous motor speed n
ramp-up time such that the output current
does not exceed the current limit in
4-18 Current Limit during ramping. The
value 0.00 corresponds to 0.01 sec. in
speed mode. 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, i.e., the
related 3600 s] deceleration time from the synchronous
*
motor speed n
down time such that no overvoltage 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 4-18 Current Limit. The
value 0.00 corresponds to 0.01 s in speed
mode. See ramp-up time in
parameter 3-41 Ramp 1 Ramp-up Time.
Par . 3 − 42 =
•
The choice of configu-
ration in
1-00 Configuration Mode:
for Speed closed-loop [1],
RPM; for Torque [2], Nm.
•
The unit selected in
3-00 Reference Range.
. Choose a
S
tacc s x ns RPM
ref RPM
to 0 RPM. Choose a ramp-
s
tdec s x ns RPM
ref RPM
MG37A222