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Optidrive P2 Elevator User Guide V2.30
First Start-up of Geared (Induction) Motors.
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Enhanced V/F motor Control.
In some cases, older Induction (Geared) motors are not suitable for Vector control (P4-01 = 0 or 1) therefore Enhanced V/F mode can be
utilised, it should be noted that in Enhanced V/F mode the speed loop gains P4-03, P4-04, P4-15, P4-16, P4-17 and P7-13 are not active,
furthermore manual adjustment of motor slip compensation (P1-10) and V/F Mode Voltage Boost (P1-11) maybe required.
Action
Additional Information
Select Geared
(Induction) motor
control
Set P1-14 to 201
Advanced parameter Access.
Set P4-01 to 2
Enhanced V/F Motor control mode.
Enter motor rated
voltage (P1-07)
Enter value into P1-07
Enter Voltage value as shown on the motor nameplate (Volts).
Enter Motor Rated
Current (P1-08)
Enter value into P1-08
Enter Current value as shown on the motor nameplate (Amps).
Enter Motor Rated
Frequency (P1-09)
Enter value into P1-09
Enter Frequency value as shown on the motor nameplate (Hz).
Enter Motor Rated
Speed (P1-10)
Enter value into P1-10
To ensure that the drive produces full torque it is important that the motor rated speed
value as shown on the motor nameplate (rpm) is entered, the value entered is the motor
synchronous speed-motor slip speed. E.g. 1450 rpm for a 1500 rpm synchronous speed
motor, generally the motor slip value is higher on older motors.
if the value is not available then it is possible to practically work out the value :
1.
Set an estimated motor rated speed in P1-10, e.g. for a 4-pole 50Hz motor then
enter 1450rpm.
Method 1
2.
Run the lift (empty) up and down the shaft at levelling speed whilst monitoring the
motor speed (via the drive keypad).
3.
Adjust P1-10 until the motor speed is the same in both directions.
Method 2
2.
Run the lift in the same direction between a numbers of floors at levelling speed
whilst monitoring the current (via the drive keypad).
3.
The correct value of P1-10 will be when the lift runs without vibration, whilst
achieving the target speed and with the least amount of current.
The drive display will now show motor speed in estimated rpm. All speed related
parameters, such as Minimum and Maximum Speed, run Speeds etc. will also be
displayed in Rpm.
Enter the Maximum
speed (P1-01)
Enter value into P1-01
This is the maximum allowable speed in rpm.
