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Diagnostics Optimization CT MODBUS RTU Technical Data
158 E300 Design Guide
Issue Number: 1
RFC-S Rotating autotune: Basic control and improved performance
This test measures the parameters for improved performance by rotating the motor. The test can be used to measure all parameters for basic control
and improved performance through cancelling cogging torque effects. The motor must be unloaded for this test. This test is likely to give a more
accurate value for the A16 (Position Feedback Phase Angle C13) than the static autotune.
Stage 1 of the Rotating autotune is to carry out the Static autotune in RFC-S refer to section 7.3.1 Static Autotune .
Stage 2 is a Rotating autotune which is performed to locate the flux axis of the motor, and from this the position feedback phase angle is set-up for the
position from the position feedback device connected to the drive from the motor. This is done by rotating the motor by 2 electrical revolutions i.e. up
to 2 mechanical revolutions) in the selected direction.
If sensorless mode is selected a static autotune is performed.
Table 7-9 RFC-S rotating autotune parameter
7.4 Elevator mechanical data
The Elevator system mechanical arrangement must be programmed into the drive to convert the linear speed of the Elevator to the rotational speed
of the motor. In order to set-up the Nominal Elevator Speed rpm (E07) the elevator contact speed mm/s), roping, sheave diameter and gearbox ratio
must be entered into the following parameters.
The nominal elevator speed in Nominal Elevator Speed rpm (E07). is the final speed of the motor which must be set-up correctly to ensure the
nominal elevator speed in Nominal Elevator Speed E01) is achieved. Calculated Nominal rpm (E06) enable by default is set to On (1) to automatically
calculate the Nominal Elevator Speed rpm (E07), this can however be disabled, set to Off (0) if required to manually enter, adjust the nominal elevator
speed in Nominal Elevator Speed rpm (E07).
Table 7-10 Elevator mechanical parameters
The nominal elevator speed in Nominal Elevator Speed rpm (E07) is calculated based upon the Elevator mechanical data entered and using the
following formula;
A = (B x D x E x 60) / (
Ï€ x C x F)
example;
B - Nominal elevator speed = 1600 mm/s
C - Sheave diameter = 240 mm
D - Roping = 1 : 1
E - Gearbox ratio numerator = 1
F - Gearbox ratio denominator = 1
A = (B x D x E x 60) / (
Ï€ x C x F)
(1600 x 1 x 1 x 60) / (3.1416 x 240 x 1) = 127.323 rpm.
Nominal Elevator Speed rpm (E07) = 127.323
Parameter Required for Detail
A21 (Motor Rated Frequency B06)
Basic control
Motor nameplate
A18 (Motor Rated Current B02)
A22 (Motor Rated Speed B07) Slip compensation
A19 (Motor Rated Voltage B03) Basic control
Motor Rated Power Factor (B04) Not used
A20 (Number Of Motor Poles B05) Basic control
Stator Resistance (B34) Ur S (0) Ur (1), Ur Auto (3), Ur I (4) modes Manually enter, Static or rotating autotune
Transient Inductance Ld (B33) Improved performance Static or rotating autotune
A16 (Position Feedback Phase Angle C13)
Basic control
Manually enter, Static or rotating autotune
Start Current Loop P Gain (I03)
Run Current Loop P Gain (I08)
Stop Current Loop P Gain (I13)
Static or rotating autotune
Start Current Loop I Gain (I04)
Run Current Loop I Gain (I09)
Stop Current Loop I Gain (I14)
Maximum Deadtime Compensation (B46)
Current At Maximum Deadtime Compensation (B47)
Function Parameter Detail
A Nominal Elevator Speed rpm E07 Final calculated motor operational rpm
B Nominal Elevator Speed E01 Operating, contract speed of elevator in mm/s
C Sheave Diameter E02 Sheave diameter in mm
D R
opin
g E03 Elevator roping 1:1, 2:1, 3:1, 4:1
E Gearbox Ratio Numerator E04 Gearbox numerator
F Gear Ratio Denominator E05 Gearbox denominator
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