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Unidrive M702 User Guide 107
Issue Number: 3
7.3 Quick start commissioning / start-up
7.3.1 Open loop
Action Detail
Before power-up
Ensure:
• The drive enable signal is not given (terminals 11 and 13)
• Run signal is not given
• Motor is connected
Power-up the drive
Verify that Open Loop mode is displayed as the drive powers up. If the mode is incorrect see section
5.6 Changing the operating mode on page 93.
Ensure:
• Drive displays ‘Inhibit’
If the drive trips, see section 13 Diagnostics on page 247.
Enter motor
nameplate details
Enter:
• Motor rated frequency in Pr 00.047 (Hz)
• Motor rated current in Pr 00.046 (A)
• Motor rated speed in Pr 00.045 (rpm)
• Motor rated voltage in Pr 00.044 (V) - check if or connection
Set maximum
frequency
Enter:
• Maximum frequency in Pr 00.002 (Hz)
Set acceleration /
deceleration rates
Enter:
• Acceleration rate in Pr 00.003 (s/100 Hz)
• Deceleration rate in Pr 00.004 (s/100 Hz) (If braking resistor installed, set Pr 00.015 = Fast. Also
ensure Pr 10.030 and Pr 10.031 and Pr 10.061 are set correctly, otherwise premature ‘Brake R Too
Hot’ trips may be seen).
Motor thermistor
set-up
The motor thermistor connection is made through the drive encoder port (terminal 15). The thermistor
type is selected in P1 Thermistor Type (03.118).
Autotune
The drive is able to perform either a stationary or a rotating autotune. The motor must be at a standstill
before an autotune is enabled. A rotating autotune should be used whenever possible so the measured
value of power factor of the motor is used by the drive.
• A stationary autotune can be used when the motor is loaded and it is not possible to uncouple the
load from the motor shaft. A stationary autotune measures the stator resistance of the motor and
the voltage offset in the drive. These are required for good performance in vector control modes. A
stationary autotune does not measure the power factor of the motor so the value on the motor
nameplate must be entered into Pr 00.043.
• A rotating autotune should only be used if the motor is uncoupled. A rotating autotune first performs
a stationary autotune before rotating the motor at
2
/
3
base speed in the direction selected. The
rotating autotune measures the power factor of the motor.
To perform an autotune:
•Set Pr 00.040 = 1 for a stationary autotune or set Pr 00.040 = 2 for a rotating autotune
• Close the Drive Enable signals (terminals 11 and 13). The drive will display ’Ready’.
• Close the run signal (terminal 7 or 8). The upper row of the display will flash ’Auto Tune’ while the
drive is performing the autotune.
• Wait for the drive to display ’Ready’ or ‘Inhibit’ and for the motor to come to a standstill.
If the drive trips, see Chapter 13 Diagnostics on page 247.
• Remove the drive enable and run signal from the drive.
Save parameters
Select 'Save Parameters' in Pr mm.000 (alternatively enter a value of 1000 in Pr mm.000) and press
the 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)
A rotating autotune will cause the motor to accelerate up to
2
/
3
base speed in the direction
selected regardless of the reference provided. Once complete the motor will coast to a
stop. The enable signal must be removed before the drive can be made to run at the
required reference.
The drive can be stopped at any time by removing the run signal or removing the drive
enable.
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