Optidrive P2 Elevator User Guide V2.30
39
Start-up of Gearless (Permanent Magnet) Motor-With Encoder Feedback.
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Step 3- Apply Power.
Apply Electrical
Power to the drive
Apply rated voltage to the
drive.
Check that the drive displays
or
.
Check that the Encoder
module (Optional) left hand LED
light is illuminated Green
If
or
is not shown refer to the troubleshooting section at the
back of the user manual.
If there is no green light shown on the encoder module :
o
Check encoder module is pushed fully home.
o
Check the encoder wiring is correct.
Step 4- Motor nameplate data entry.
Action
Additional Information
Select Gearless
(Permanent Magnet)
motor control mode.
(P4-01)
Set P1-14 to 201
Advanced parameter Access.
Set P4-01 to 3
Both IPM and SPM type motors are supported.
Enter motor back-
EMF voltage value
(P1-07)
From motor datasheet Enter the
Phase to Phase back-EMF value (at
motor rated speed).
If the back-EMF value is not
available from the motor datasheet
then enter calculated value as shown
opposite.
If the back-emf value is not available it can be approximated as per the
following calculation :
P1-07 = Motor Rated Power / Motor Efficiency / Motor Power factor /1.732 / Motor
rated Current.
(Typical values are 0.95 for Motor efficiency and 0.90 for Motor power factor).
Example: Motor rated Power = 7.2kW
Motor Efficiency = 0.95, Motor Power
factor (Cos
Ø
) = 0.9, Motor rated current = 16.9A.
Therefore: P1-07 = 7200/0.9/0.9/1.732/16.9 = 304V
Note:
1.
Incorrect value can result in abnormal motor operation (motor vibration).
2.
For motors =/<32Hz then the value of P1-07 does not have to be entered (leave at
defaults), however the direction check (as shown in Step 6) will not be able to be
performed and therefore the motor direction and Encoder direction must be
correct.
Enter Motor Rated
Current (P1-08)
Enter motor rated current into
P1-08
Obtained from Motor nameplate (Amps).
Enter Motor Rated
Frequency (P1-09)
Enter motor rated frequency into
P1-09
If not available it can be calculated : motor poles*motor rated rpm/120
Motor Poles (Pair) = P1-09*60/ P1-10, the result must equal a whole number (zero
decimal places e.g. 12 and not 12.3) :
For non-whole number frequencies e.g. 6.82Hz, then choose next whole number for
P1-09 and recalculate accordingly :
Next whole number (7)/Pole pairs*60 = New rated speed value (P1-10).
Enter Motor Rated
Speed (P1-10)
Enter motor rated speed
into P1-10
If not available it can be calculated:
Motor rated frequency*120/motor poles.
Enter the Maximum
speed (P1-01)
Enter value into P1-01
This is the maximum allowable speed in rpm.
Set Motor Switching
Frequency
(P2-24)
Set P2-24 to 16kHz
16kHz provides optimum motor control.
Motor Pole Whole
number check
Confirm that the values set in
P1-09 and P1-10 equates to a whole
number.
The drive uses P1-09 and P1-10 to calculate the number of motor pole pairs, it
is important that the result of the calculation equates to a whole number of
poles. (P1-09*60/ P1-10) = Result must be whole number.
e.g 16 poles and not 16.3 poles.
