Asynchronous Motor Setup; Permanent Magnet Motor Setup - Danfoss VLT FC 102 Operating Instructions Manual

Commissioning
7. Use the navigation keys to scroll to
0-01 Language.
8. Select language and press [OK].
9. If a jumper wire is in place between control
terminals 12 and 27, leave 5-12 Terminal 27 Digital
Input at factory default. Otherwise, No Operation
should be selected in 5-12 Terminal 27 Digital
Input. For frequency converters with an optional
bypass, no jumper wire is required between
control terminals 12 and 27.
10. 3-02 Minimum Reference
11. 3-03 Maximum Reference
12. 3-41 Ramp 1 Ramp Up Time
13. 3-42 Ramp 1 Ramp Down Time
14. 3-13 Reference Site. Linked to Hand/Auto Local
Remote.

5.4.3 Asynchronous Motor Setup

Enter the motor data in parameters 1-20 or 1-21 to 1-25.
The information can be found on the motor nameplate.
1. 1-20 Motor Power [kW] or 1-21 Motor Power [HP]
2. 1-22 Motor Voltage
3. 1-23 Motor Frequency
4. 1-24 Motor Current
5. 1-25 Motor Nominal Speed

5.4.4 Permanent Magnet Motor Setup

NOTICE
Only use permanent magnet (PM)
motor with fans and pumps.
Initial Programming Steps
1. Activate PM motor operation 1-10 Motor
Construction, select (1) PM, non salient SPM
2. Set 0-02 Motor Speed Unit to [0] RPM
Programming motor data
After selecting PM motor in 1-10 Motor Construction, the
PM motor-related parameters in parameter groups 1-2*
Motor Data, 1-3* Adv. Motor Data and 1-4* are active.
The necessary data can be found on the motor nameplate
and in the motor data sheet.
Program the following parameters in the listed order
1. 1-24 Motor Current
2. 1-26 Motor Cont. Rated Torque
3. 1-25 Motor Nominal Speed
4. 1-39 Motor Poles
®
VLT HVAC Drive Operating Instructions
5.
6.
7.
Test Motor Operation
1.
2.
Rotor detection
This function is the recommended choice for applications
where the motor starts from standstill, e.g. pumps or
conveyors. On some motors, an acoustic sound is heard
when the impulse is sent out. This does not harm the
motor.
Parking
This function is the recommended choice for applications
where the motor is rotating at slow speed eg. windmilling
in fan applications. 2-06 Parking Current and 2-07 Parking
Time can be adjusted. Increase the factory setting of these
parameters for applications with high inertia.
MG11AJ02 - Rev. 2013-07-31
1-30 Stator Resistance (Rs)
Enter line to common stator winding resistance
(Rs). If only line-line data are available, divide the
line-line value with 2 to achieve the line to
common (starpoint) value.
It is also possible to measure the value with an
ohmmeter, which will also take the resistance of
the cable into account. Divide the measured
value by 2 and enter the result.
1-37 d-axis Inductance (Ld)
Enter line to common direct axis inductance of
the PM motor.
If only line-line data are available, divide the line-
line value with 2 to achieve the line-common
(starpoint) value.
It is also possible to measure the value with an
inductancemeter, which will also take the
inductance of the cable into account. Divide the
measured value by 2 and enter the result.
1-40 Back EMF at 1000 RPM
Enter line to line back EMF of PM Motor at 1000
RPM mechanical speed (RMS value). Back EMF is
the voltage generated by a PM motor when no
drive is connected and the shaft is turned
externally. Back EMF is normally specified for
nominal motor speed or for 1000 RPM measured
between two lines. If the value is not available for
a motor speed of 1000 RPM, calculate the correct
value as follows: If back EMF is e.g. 320 V at 1800
RPM, it can be calculated at 1000 RPM as follows:
Back EMF = (Voltage / RPM)*1000 =
(320/1800)*1000 = 178. This is the value that
must be programmed for 1-40 Back EMF at 1000
RPM.
Start the motor at low speed (100 to 200 RPM). If
the motor does not turn, check installation,
general programming and motor data.
Check if start function in 1-70 PM Start Mode fits
the application requirements.
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