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:
0 Reference-
FeedbackUnit*
[-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
configuration 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:
1500.000
ReferenceFeed-
backUnit*
[par. 3-02 -
999999.999
ReferenceFeed-
backUnit]
Enter the Maximum
Reference. The Maximum
Reference is the highest
value obtainable by
summing all references.
The Maximum Reference
unit matches:
•
The choice of
configuration 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:
3.00
s*
[0.01 -
3600.00 s]
Enter the ramp-up time, i.e. the acceleration
time from 0RPM to the synchronous motor
3-41 Ramp 1 Ramp up Time
Range: Function:
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 =
t
acc
s
x
n
s
RPM
ref
RPM
3-42 Ramp 1 Ramp Down Time
Range: Function:
3.00 s* [0.01 -
3600.00 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 over-voltage 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 =
t
dec
s
x
n
s
RPM
ref
RPM
6.1.2 Basic Setup Parameters
0-02 Motor Speed Unit
Option: Function:
NOTICE
This parameter cannot be adjusted while the
motor is running.
The display showing depends on settings in
parameter 0-02 Motor Speed Unit and 0-03 Regional
Settings. The default setting of parameter 0-02 Motor
Speed Unit and 0-03 Regional Settings depends on
which region of the world the frequency converter is
supplied to, but can be re-programmed as required.
NOTICE
Changing the Motor Speed Unit resets certain
parameters to their initial value. It is
recommended to select the motor speed unit,
before modifying other parameters.
[0] RPM Selects display of motor speed variables and
parameters (i.e. references, feedbacks and limits) in
terms of motor speed (RPM).
[1] Hz Selects display of motor speed variables and
parameters (i.e. references, feedbacks and limits) in
terms of output frequency to the motor (Hz).
Programming Operating Instructions
MG37A202 Danfoss A/S © Rev. 2014-07-29 All rights reserved. 51
6 6
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