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AMD2000 Series - Servo Drive - User Manual
92
DS619-0-00-0019 - Rev 0
ANCA Motion
10.1.13
Configuring Wire-Saving UVW Motors
Warning:
This feature is recommended to be used only on braked axes, or axes that are unable to move.
Description
This document describes how to use UVW wire-saving encoders with AMD2000 drives to perform Field
Orientation Initialisation (FOI). It is important to note that the FOI alignment angle is latched during power-up. If
you have downloaded code (or have entered into BOOTSTRAP mode), you MUST power cycle the drive. Note
that this feature is only supported on drive encoder channel 2.
IDN
Description
P-0-006 / 32774
Number of motor poles
P-0-297 / 33065
Field Orientation Initialisation Type
P-0-312 / 33080
Absolute Feedback Type
P-0-579 / 33347
UVW Hall Sensor Source
Note on FOI and Index Pulse Offset Alignment
As UVW wire-saving estimation of the field alignment only provides an estimate of optimal angle for Field
Orientation Initialisation, this method is usually combined with index pulse offset alignment to maximise the
output torque and efficiency of the motor. See Section
10.1.18 Field Orientation Initialisation
for details of how to
use these methods together.
Procedure for setting up a UVW wire-saving Motor
1. Set UVW Hall Sensor Source (IDN 33347) to 3 (wire-saving Encoder 2).
2. Program the correct number of motor poles (IDN 32774).
3. Set Absolute Feedback Type (IDN 33080) to 2 (UVW hall sensors).
4. Set Field Orientation Initialisation Type (IDN 33065) to 3 (Absolute).
Warning:
Excessive movement (more than 30 electrical degrees) between drive power-up and when the
drive firmware loads will result with an invalid field alignment, potentially resulting in axis run away. This
feature is recommended to be used only on braked axes, or axes that are unable to move. If ever entering
into the boot loader during drive operation, always power cycle the drive as the UVW signals will not be
correct.
10.1.14
Digital Output
Description
The AMD2000 comes with 6 digital outputs (see Section 3.6). These provide a powerful and flexible means of
conveying information or making requests for actions external to the drive. They are highly configurable, being
able to provide useful information during normal operation, as well as under those conditions where the drive as
an EtherCAT
4
device is no longer in its operating (OP) state. For example, an EtherCAT SAFEOP state might
result from abnormal conditions related to loss of communication or software crashes, or the INIT and PREOP
states can result from drive entering initialisation and start-up conditions.
4
EtherCAT® is a registered trademark and patented technology, licensed by Beckhoff Automation GmbH, Germany