Danfoss VLT AQUA Drive FC 202 Programming Manual page 42

Parameter Description
Parameter 1-10 Motor
Construction
Parameter 1-90 Motor Thermal
Protection
Parameter 1-91 Motor External
3 3 Fan
Parameter 1-93 Thermistor
Source
Parameter 2-00 DC Hold/Preheat
Current
Parameter 2-01 DC Brake Current
Parameter 2-02 DC Braking Time
Parameter 2-03 DC Brake Cut In
Speed [RPM]
Parameter 2-04 DC Brake Cut In
Speed [Hz]
Parameter 2-06 Parking Current
Parameter 2-07 Parking Time
Parameter 2-10 Brake Function
Parameter 2-11 Brake Resistor
(ohm)
Parameter 2-12 Brake Power
Limit (kW)
Parameter 2-13 Brake Power
Monitoring
Parameter 2-15 Brake Check
Parameter 2-16 AC brake Max.
Current
Parameter 2-17 Over-voltage
Control
Parameter 4-10 Motor Speed
Direction
Parameter 4-11 Motor Speed Low
Limit [RPM]
Parameter 4-12 Motor Speed Low
Limit [Hz]
Parameter 4-13 Motor Speed
High Limit [RPM]
Parameter 4-14 Motor Speed
High Limit [Hz]
Parameter 4-16 Torque Limit
Motor Mode
Parameter 4-17 Torque Limit
Generator Mode
Parameter 4-18 Current Limit
Parameter 4-19 Max Output
Frequency
4-58 Missing Motor Phase
Function
Parameter 14-40 VT Level
Parameter 14-41 AEO Minimum
Magnetisation
Parameter 14-42 Minimum AEO
Frequency
Parameter 14-43 Motor Cosphi
Table 3.5
40
Programming Guide
[1] PM Motor
[0] Asynchron
non-salient
x x
x x
x x
x
x x
x
x
x
x
x
x x
x x
x x
x x
x x
x
x
x x
x x
x x
x x
x x
x x
x x
x x
x x
x
x
x
x
x
Danfoss A/S © Rev. 2014-01-21 All rights reserved.
1-10 Motor Construction
Select the motor construction type.
Option: Function:
[0] Asynchron For asynchronous motors.
[1] PM, non salient For permanent magnet (PM) motors.
SPM Note that PM motors are divided into 2
groups, with either surface mounted
(non-salient) or interior (salient) magnets.
NOTICE
Only available up to 22 kW motor
power.
NOTICE
Motor construction can either be asynchronous or
permanent magnet (PM) motor.
3.3.3 1-14 - 1-17 VVC +
The default control parameters for VVC
core are optimised for applications and inertia load in
range of 50>Jl/Jm>5, were Jl is load inertia from the
application and jm is machine inertia.
For low inertia applications Jl/Jm<5 it is recommended
that parameter 1-17 Voltage filter time const. is increased
with a factor of 5-10 and in some cases 1-14 Damping Gain
should be reduced to improve performance and stability.
For high-inertia applications Jl/Jm>>50 it is recommended
that parameter 1-15 Low Speed Filter Time Const.,
parameter 1-16 High Speed Filter Time Const.
and1-14 Damping Gain are increased to improve
performance and stability.
For high load at low speed [<30% of rated speed] it is
recommended that parameter 1-17 Voltage filter time const.
is increased due to nonlinearity in the inverter at low
speed.
1-14 Damping Gain
Range: Function:
120 [0 - The parameter stabilises the PM motor to run it
% 250 %] smooth and stable. The value of damping gain
*
controls the dynamic performance of the PM
motor. Low damping gain results in high dynamic
and a high value results in a low dynamic
performance. If the damping gain is too high or
low, the control becomes unstable. The resulting
dynamic performance is related to the machine
data and load type.
1-15 Low Speed Filter Time Const.
Range: Function:
Size [0.01 - High pass-filter damping time constant
related 20 s] determines the response time to load
*
steps. Obtain quick control through a
PM
+
PMSM control
MG20O702