Danfoss VLT Series Programming Manual page 38

Parameter Description
1-06 Clockwise Direction
This parameter defines the term "Clockwise" corresponding to
the LCP direction arrow. Used for easy change of direction of
shaft rotation without swapping motor wires. (Valid from SW
version 5.84)
Option:
[0] Normal
*
[1] Inverse
NOTE
This parameter cannot be changed while the motor is
running.
3.3.2 1-1* Motor Selection
NOTE
This parameter group cannot be adjusted while the motor
is running.
The default control parameters for VVC
core are optimized for HVAC 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
1-17 Voltage filter time const. is increased with a factor of
5-10 and in some cases 1-14 Damping Gain should also be
reduced to improve performance and stability.
For High inertia applications Jl/jm>>50 it is recommended
that 1-15 Low Speed Filter Time Const., 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 1-17 Voltage filter time const. is
increased due to nonlinearity in the inverter at low speed.
The following parameters are active ('x') depending on the
setting of 1-10 Motor Construction
1-10 Motor construction
1-00 -Configuration mode
1-03 Torque Characteristics
1-06 Clockwise direction
1-14 Damping gain
1-15 High pass filter damp time low
speed
®
VLT HVAC Drive Programming Guide
Function:
Motor shaft will turn in clockwise
direction when the frequency
converter is connected U -> U; V -
> V, and W -> W to motor.
Motor shaft will turn in counter
clockwise direction when the
frequency converter is connected
U -> U; V -> V, and W -> W to
motor.
plus
PMSM control
[0] [1] PM Motor
Asynchron non salient
x x
x
x x
x
x
®
MG.11.CC.02 - VLT is a registered Danfoss trademark
1-10 Motor construction
1-16 High pass filter damp time
high speed
1-17 Machine voltage filter time
1-20 Motor power [KW]
1-21 - Motor power [HP]
1-22 Motor Voltage
1-23 Motor frequency
1-24 Motor current
1-25 Motor Nom. speed
1-26 Motor rated torque
1-28 Motor rotation check
1-29 AMA
1-30 RS
1-31 Rr
1-35 Xh
1-37 Ld
1-38 Lq
1-39 Motor poles
1-40 Back EMF
1-50 Motor Magnet. at 0 speed
1-51 Min Speed norm. magne. [rpm]
1-52 Min Speed norm. magne. [Hz]
1-58 Flystart test pulses current
1-59 Flystart test pulses frequency
1-60 Low Speed Load Compensation
1-61 High Speed Load Compen-
sation
1-62 Slip Compensation
1-63 Slip Compensation time const.
1-64 Resonance Damping
1-65 Resonance Damping time
const.
1-66 Min Current at low speed
1-71 Start Delay
1-72 Start Function
1-73 Flying Start
1-77 Compressor Max Start speed
[rpm]
1-78 Compressor Max Start speed
[Hz]
1-79 Compressor start max time to
trip
1-80 Stop Function
1-81 Min Speed funct. at stop [rpm]
1-82 Min Speed funct. at stop [Hz]
1-86 Trip speed low [rpm]
1-87 Trip speed low [Hz]
1-90 Motor Thermal Protection
1-91 Motor External Fan
1-93 Thermistor Resource
2-00 DC Hold current
2-01 DC Brake current
[0] [1] PM Motor
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
x x
x x
x x
x x
x x
x x
x
x x
37
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