GE AF-650 GP Programming Manual page 72

Parameter Descriptions
H-48 Clockwise Direction
Option: Function:
[1] Inverse Motor shaft turns in counterclockwise direction
when the frequency converter is connected U⇒U,
V⇒V, and W⇒W to the motor.
H-49 Motor Angle Offset Adjust
Range: Function:
NOTICE
This parameter is only valid for AF-650 GP
and only in combination with a PM motor
with feedback.
0 [Manual] The functionality of this option depends on the
*
type of the feedback device. This option sets the
frequency converter to use the motor angle
offset entered in parameter H-47 Motor Angle
Offset, if an absolute feedback device is used.
If an incremental feedback device is selected, the
frequency converter automatically adjusts the
motor angle offset on the first start after power-
up, or when the motor data is changed.
[1] Auto The frequency converter adjusts the motor angle
offset automatically on the first start after power-
up, or when the motor data is changed no
matter what feedback device is selected. This
means that options Manual and Auto are
identical for the incremental encoder.
[2] Auto The frequency converter adjusts the motor angle
Every offset automatically on every start, or when the
Start motor data is changed.
[3] Off Selecting this option turns the automatic offset
adjustment off.
3.7.5 H-5# Load Indep. Settings
Parameters to configure the load-independent motor
settings.
H-50 Motor Magnetisation at Zero Speed
This parameter is not visible on the LCP.
Range: Function:
NOTICE
100 % [0 -
300 %]
*
Parameter H-50 Motor Magnetisation at
Zero Speed has no effect when
parameter P-20 Motor Construction = [1]
PM, non-salient SPM.
Use this parameter along with
parameter H-51 Min Speed Normal Magnetising
[RPM] to obtain a different thermal load on the
motor when running at low speed.
DET-618D
AF-650 GP™ Programming Guide
H-50 Motor Magnetisation at Zero Speed
This parameter is not visible on the LCP.
Range:
H-51 Min Speed Normal Magnetising [RPM]
This parameter is not visible on the LCP.
Range:
15 RPM
*
H-52 Min Speed Normal Magnetising [Hz]
Range:
12.5
Hz
*
H-53 Model Shift Frequency
Range:
4.0
Hz 18.0
*
Hz]
02/2016 All rights reserved.
Function:
Enter a value which is a percentage of the rated
magnetizing current. If the setting is too low,
the torque on the motor shaft may be reduced.
Illustration 3.26 Motor Magnetisation
Function:
NOTICE
[10 -
300 RPM]
Parameter H-51 Min Speed Normal
Magnetising [RPM] has no effect when
parameter P-20 Motor Construction=[1]
PM, non-salient SPM.
Set the required speed for normal
magnetizing current. If the speed is set
lower than the motor slip speed,
parameter H-50 Motor Magnetisation at Zero
Speed and parameter H-51 Min Speed
Normal Magnetising [RPM] are of no signif-
icance.
Use this parameter along with
parameter H-50 Motor Magnetisation at Zero
Speed. See Table 3.13.
Function:
[0 - Set the required frequency for normal
250.0 Hz] magnetizing current. If the frequency is set
lower than the motor slip frequency,
parameter H-50 Motor Magnetisation at Zero
Speed is inactive.
Use this parameter along with
parameter H-50 Motor Magnetisation at Zero
Speed. See Illustration 3.26.
Function:
[4 - Flux Model shift
Enter the frequency value for shift between two
models for determining motor speed. Choose the
value based on settings in parameter H-40 Config-
uration Mode and parameter H-41 Motor Control
Principle. There are two options: shift between
3 3
71