Motor Rated Frequency
(05.006) and
Motor Rated Voltage
(05.009) define the frequency to voltage characteristic applied to the motor. See
Open-
loop Voltage Mode
(05.014) for more details.
Parameter
05.010
Motor Rated Power Factor
Short description
Set to the rated power factor of the motor. This value can be measured by the drive during a rotating
autotune
Mode
Open
‑
loop
Minimum
0.00
Maximum
1.00
Default
0.85
Units
Type
16 Bit User Save
Update Rate
Background read/write
Display Format
Standard
Decimal Places
2
Coding
RW, RA
Motor Rated Power Factor
(05.010) is the true power factor of the motor under rated conditions, i.e. the cosine of the angle between the motor voltage and
current. If
Stator Inductance
(05.025) is set to a non-zero value then the stator inductance is used to calculate the rated magnetising current for the motor and
the rated power factor can be calculated by the drive. Therefore if
Stator Inductance
(05.025) is non-zero
Motor Rated Power Factor
(05.010) is continuously
set to the calculated value of rated power factor by the drive. If
Stator Inductance
(05.025) is set to zero then
Motor Rated Power Factor
(05.010) is used to
estimate the rated magnetising current which is an approximation and not as accurate.
Stator Inductance
(05.025) can be measured by the drive during auto-
tuning and this is the preferred option, however, if it is not possible to obtain the value for
Stator Inductance
(05.025) then
Motor Rated Power Factor
(05.010)
should be set to the motor nameplate value.
Parameter
05.011
Number Of Motor Poles
Short description
Set to the number of poles of the motor
Mode
Open
‑
loop
Minimum
0
Maximum
16
Default
0
Units
Pole pairs
Type
8 Bit User Save
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, BU
If
Number Of Motor Poles
(05.011) = 0 the number of motor poles are calculated automatically as given below.
Pole pairs = 60 x
Motor Rated Frequency
(05.006) /
Motor Rated Speed
(05.008) rounded down to the nearest integer.
If
Number Of Motor Poles
(05.011) > 0 the value is taken as the number of pole pairs.
When viewed with a keypad, the value of 0 is displayed as Automatic and any non 0 value is displayed is the twice the parameter value representing number
of motor poles rather than pole pairs.
Parameter
05.012
Auto-tune
Short description
Defines the auto-tune test to be performed
Mode
Open
‑
loop
Minimum
0
Maximum
2
Default
0
Units
Type
8 Bit Volatile
Update Rate
Background read
Display Format
Standard
Decimal Places
0
Coding
RW, NC
The following describes how an auto-tune test can be initiated and normal operation can be resumed after the test:
1. An auto-tune test cannot be initiated if the drive is tripped or the drive inverter is active, i.e.
Drive Healthy
(10.001) = 0 or
Drive Active
(10.002) = 1.
The inverter can be made inactive by ensuring that the Final drive enable is inactive (see Menu 06), or the Final drive run (see Menu 06) is inactive
and
Hold Zero Frequency
(06.008) = 0.
2. An auto-tune test is initiated by setting
Auto-tune
(05.012) to a non-zero value and making the Final drive enable and the Final drive run active.
3. All tests that move the motor will move the motor in the forward direction if
Reverse Select
(01.012) = 0 or the reverse direction if
Reverse Select
(01.012) = 1.
4. If the auto-tune sequence is completed successfully the Final drive enable is set to the inactive state and
Auto-tune
(05.012) is set to zero. The Final
drive enable can only be set to the active state again by removing the enable and reapplying it. The enable can be removed by setting
Drive Enable
(06.015) = 0, or by setting bit 0 of the
Control Word
(06.042) to 0 provided
Control Word Enable
(06.043) = 1, or by making
Hardware Enable
= 0.
5. If a trip occurs during the auto-tune sequence the drive will go into the trip state and
Auto-tune
(05.012) is set to zero. As in 4. above, the enable must
be removed and re-applied before the drive can be restarted after the trip has been reset. However, care should be taken because if the auto-tune
was not completed the drive parameters that should have been measured and set up will still have their original values.
The following describes the effects of the auto-tune test on the drive :
1. All auto-tune tests rely on the motor being stationary when the test is initiated to give accurate results.
2. If
Select Motor 2 Parameters
(11.045) = 0 then the parameters associated with motor map 1 are updated as a result of the test, and if
Select Motor 2 Parameters
(11.045) = 1 the parameters associated with motor map 2 are updated.
3. Only when the whole test is completed, are the results written to the appropriate parameters and these parameters saved in the drive non-volatile
memory. If
Parameter Cloning
(11.042) is set to 3 or 4 the parameters are also written to a non-volatile media card fitted on the drive.
The table below shows the parameters required for motor control indicating which should be set by the user and which can be measured with an auto-tune
test.
66
Unidrive M200 Parameter Reference Guide
Issue: 01.05.00.10
Summary of Contents for unidrive m200
Page 1: ...Parameter Reference Guide Unidrive M200 Open loop Mode Issue 01 05 00 10 ...
Page 30: ...30 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...
Page 83: ...Enable logic Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 83 ...
Page 125: ...Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 125 ...
Page 145: ...Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 145 ...
Page 204: ...204 Unidrive M200 Parameter Reference Guide Issue 01 05 00 10 ...