3.2 Main Menu - Load and Motor - Group 1
Parameters related to the motor nameplate load compen-
sations and application load type.
3.2.1 1-0* General Settings
1-00 Configuration Mode
Option:
Function:
[0]
*
Open
Loop
Motor speed is determined by applying a speed
reference or by setting desired speed when in
Hand Mode.
Open Loop is also used if the frequency converter
is part of a closed loop control system based on
an external PI controller providing a speed
reference signal as output.
[3]
Closed
Loop
Motor Speed will be determined by a reference
from the built-in PI controller varying the motor
speed as of a closed loop control process (e.g.
constant pressure or flow). The PI controller must
be configured in parameter group20-**.
NOTE
This parameter cannot be changed when motor is running.
NOTE
When set for Closed Loop, the commands Reversing and
Start Reversing will not reverse the direction of the motor.
1-01 Motor Control Principle
Option:
Function:
[0]
U/f
Is used for parallel connected motors and/or special
motor applications. The U/f settings are set in
parameters 1-55 and 1-56.
NOTE
When running U/f control slip and load compen-
sations are not included.
[1]
*
VVC+ Normal running mode, including slip- and load
compensations.
1-03 Torque Characteristics
Option:
Function:
[1]
*
Variable
Torque
Variable Torque
[1]: For speed control of
centrifugal pumps and fans. Also to be used
when controlling more than one motor from the
same frequency converter (e.g. multiple
condenser fans or cooling tower fans). Provides a
voltage which is optimized for a squared torque
load characteristic of the motor.
1-03 Torque Characteristics
Option:
Function:
[3]
Auto
Energy
Optim.
Auto Energy Optimization VT
[3]: For optimum
energy efficient speed control of centrifugal
pumps and fans. Provides a voltage which is
optimized for a squared torque load charac-
teristic of the motor but in addition the AEO
feature will adapt the voltage exactly to the
current load situation, thereby reducing energy
consumption and audible noise from the motor.
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.
Option:
Function:
[0]
*
Normal
Motor shaft will turn in clockwise
direction when frequency converter
is connected U -> U; V -> V, and W
-> W to motor.
[1]
Inverse
Motor shaft will turn in counter
clockwise direction when frequency
converter is connected U -> U; V ->
V, and W -> W to motor.
This parameter cannot be changed while the motor is
running.
3.2.2 1-2* Motor Data
Parameter group 1-2* comprises input data from the
nameplate on the connected motor.
NOTE
Changing the value of these parameters affects the setting of
other parameters.
1-20 Motor Power
Range:
Function:
[2]
0.12 kW - 0.16 hp
[3]
0.18 kW - 0.25 hp
[4]
0.25 kW - 0.33Hp
[5]
0.37 kW - 0.50 hp
[6]
0.55 kW - 0.75 hp
[7]
0.75 kW - 1.00 hp
[8]
1.10 kW - 1.50 hp
[9]
1.50 kW - 2.00 hp
[10]
2.20 kW - 3.00 hp
[11]
3.00 kW - 4.00 hp
[12]
3.70 kW - 5.00 hp
[13]
4.00 kW - 5.40 hp
[14]
5.50 kW - 7.50 hp
[15]
7.50 kW - 10.0 hp
[16]
11.00 kW - 15.00 hp
Parameters
VLT HVAC Basic Drive Programming Guide
24
MG.18.B1.02 - VLT
®
is a registered Danfoss trademark
3
3
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