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!
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:
Function:
Size
related
*
[ -999999.999 -
par. 3-03
ReferenceFeed-
backUnit]
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
.
3-03 Maximum Reference
Range:
Function:
Size
related
*
[ par. 3-02 -
999999.999
ReferenceFeed-
backUnit]
Enter the maximum reference. The
maximum reference is the highest
value obtainable by adding all
references together.
The Maximum Reference unit
matches:
•
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
.
3-41 Ramp 1 Ramp-up Time
Range:
Function:
Size
related
*
[ 0.01 -
3600 s]
Enter the ramp-up time, i.e., the
acceleration time from 0 RPM to the
synchronous motor speed n
S
. Choose a
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 = tacc s x ns RPM
ref RPM
3-42 Ramp 1 Ramp-down Time
Range:
Function:
Size
related
*
[ 0.01 -
3600 s]
Enter the ramp-down time, i.e., the
deceleration time from the synchronous
motor speed n
s
to 0 RPM. Choose a ramp-
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 = tdec s x ns RPM
ref RPM
Programming
Instruction Manual
54
Danfoss A/S © Rev. 2014-02-07 All rights reserved.
MG37A222
6
6
Summary of Contents for VLT AutomationDrive FC 302
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