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142 Powerdrive F300 User Guide
Issue Number: 2
7.3.4 RFC-S mode (Sensorless) Dyneo LSRPM motor set-up with V01.12.02.00 onwards firmware
* When using V01.11.01.00 firmware the Sensorless motor rated current must be used rather than the nameplate value (see Table 7-3 to Table 7-9
overleaf).
Action Detail
Before power-up
Ensure:
• The drive enable signal is not given (terminal 29).
• Run signal is not given
• Motor is connected
Power-up the drive
Verify that RFC-S mode is displayed as the drive powers up. If the mode is incorrect see section
5.6 Changing the operating mode on page 108, otherwise restore parameter defaults (see section
5.8 Restoring parameter defaults on page 109).
Ensure that the drive displays ‘inhibit’
Enter motor
nameplate details
Enter:
• Motor rated current in Pr 00.046 (A)*
• Rated speed in Pr 00.045 (rpm)
• Volts per 1000 rpm in Pr 00.047 (V / 1000 rpm)
Motor rated voltage Pr 00.044 and number of motor poles Pr 00.042 are also required but the default
values in RFC-S mode for the Powerdrive F300 are set to match those required by the Dyneo LSRPM
motor.
From firmware version 01.12.xx.xx onwards, the rated current from the motor nameplate is entered into
Pr 05.007 / Pr 00.046 and will be updated automatically to the sensorless value after an autotune.
Enter motor thermal
data and switching
frequency
Enter:
• Motor Thermal Time Constant value into Pr 00.053 (s) from the values specified inTable 7-3 to
Table 7-9 .
• Switching frequency value into Pr 00.041 (kHz) from the values specified inTable 7-3 to Table 7-9 .
Set maximum speed
Enter:
• Maximum speed in Pr 00.002 (rpm)
Set acceleration /
deceleration rates
Enter:
• Acceleration rate in Pr 00.003 (s to Pr 01.006)
• Deceleration rate in Pr 00.004
Autotune
Perform a stationary autotune. The motor must be at a standstill before an autotune is enabled.
To perform an autotune:
•Set Pr 00.040 = 1 or 2 for a stationary autotune. (Both perform the same tests).
• Close the drive enable signal (terminal 29).
• Press the green hand button.
• The upper row of the display will flash 'Auto Tune' during the test.
• Wait for the drive to display 'Inhibit'.
If the drive trips it cannot be reset until the drive enable signal (terminal 29) has been removed.
• Remove the drive enable from the drive.
If no trip occurs during or after the autotune then this indicates that the drive has been correctly set-up
and is ready to run the Dyneo LSRPM motor. If a User Trip 40 occurs, then this indicates that the motor
rated current or motor rated speed was not recognized as being a valid value for a Dyneo LSRPM
motor. Check the Rated Speed (Pr 00.045) and Rated Current (Pr 00.046) entered in the drive against
the Dyneo LSRPM motors listed in Table 7-3 to Table 7-9. Correct the values and perform an autotune
again.
Check Saliency
In sensorless mode, when the motor speed is below Pr
00.045
/ 10, a special low speed algorithm must
be used to control the motor. There are two modes available, with the mode chosen based on the
saliency of the motor. The Dyneo LSRPM motors have little or no saliency so require the non-salient low
speed mode to be used. Set Pr
00.054
to: Non-salient (1).
Non-salient mode requires the ramp rate to be no slower than 5 s / 1000 rpm when operating in the
region below Rated Speed Pr
00.045
/ 10. The drive contains a feature to ensure that the ramp rate
during the low speed region is at least 4 s / 1000 rpm. This feature is enabled automatically after a
successful set-up of the Dyneo LSRPM motor.
Save parameters
Select 'Save Parameters' in Pr
mm.000
(alternatively enter a value of 1000 in Pr
mm.000
) and press red
reset button or toggle the reset digital input.
Run Drive is now ready to run
Mot X XXXXXXXXX
No XXXXXXXXXX kg
IP55 I.cl F C 40 s S1
°
VHzmin
-1
kW cos
φ
A
230
400
50 1445 2.20 0.80 8.50
4.90
CN = 14.5Nm
240
415
50 1445 2.20 0.76 8.50
4.90
CN = 14.4Nm
CTP- VEN 1PHASE 1=0,46A P=110W R.F 32MN
I.E.C 34 1(87)
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