Copley Controls Xenus R10 Manual page 12

MULTI-MODE ENCODER PORT
This port consists of three differential input/output channels that take their functions from the Basic Setup of the drive.
On drives with quad A/B encoder feedback, the port works as an output buffering the signals from the encoder. With resolver or sin/
cos encoder versions, the feedback is converted to quad A/B signals with programmable resolution. These signals can then be fed back
to an external motion controller that closes the position or velocity loops. As an input, the port can take quad A/B signals to produce
a dual-loop position control system or use the signals as master-encoder feedback in camming mode. In addition, the port can take
stepper command signals (CU/CD or Pulse/Direction) in differential format.
AS BUFFERED OUTPUTS FROM A DIGITAL QUADRATURE
FEEDBACK ENCODER
When using a digital quadrature feedback encoder, the A/B/X signals drive
the multi-mode port output buffers directly. This is useful in systems that
use external controllers that also need the motor feedback encoder signals
because these now come from J7, the Control connector. In addition to
eliminating "Y" cabling where the motor feedback cable has to split to
connect to both controller and motor, the buffered outputs reduce loading
on the feedback cable that could occur if the motor encoder had to drive
two differential inputs in parallel, each with it's own 121 ohm terminating
resistor.
AS EMULATED QUAD A/B/X ENCODER OUTPUTS FROM AN
ANALOG SIN/COS FEEDBACK ENCODER
Analog sin/cos signals are interpolated in the drive with programmable
resolution. The incremental position data is then converted back into digital
quadrature format which drives the multi-mode port output buffers. Some
analog encoders also produce a digital index pulse which is connected
directly to the port's output buffer. The result is digital quadrature A/B/X
signals that can be used as feedback to an external control system.
AS A MASTER OR CAMMING ENCODER INPUT FROM A
DIGITAL QUADRATURE ENCODER
When operating in position mode the multi-mode port can accept digital
command signals from external encoders. These can be used to drive cam
tables, or as master-encoder signals when operating in a master/slave
configuration.
AS DIGITAL COMMAND INPUTS IN PULSE/DIRECTION,
PULSE-UP/PULSE-DOWN, OR
DIGITAL QUADRATURE ENCODER FORMAT
The multi-mode port can also be used when digital command signals are
in a differential format. These are the signals that typically go to [IN9]
and [IN10] when they are single-ended. But, at higher frequencies these
are likely to be differential signals in which case the multi-mode port can
be used.
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
Tech Support: E-mail: sales@copleycontrols.com, Internet: http://www.copleycontrols.com
Xenus R10 RUGGEDIZED DIGITAL
SERVO DRIVE FOR
BRUSHLESS/BRUSH MOTORS
+5V
22 pF
2.2k
1k
1k
22 pF
+5V
22 pF
2.2k
1k
1k
22 pF
+5V
22 pF
2.2k
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22 pF
Tel: 781-828-8090
R10
RoHS
Secondary
Encoder Input
26CS32
Input/Output
Select
26CS31
Quad A/B Feedback
Encoder
Secondary
Encoder Input
26CS32
Input/Output
Select
26CS31
Emulated Quad A/B
signals from
analog Sin/Cos encoder
or resolver
Secondary
Encoder Input
26CS32
Input/Output
Select
26CS31
Fax: 781-828-6547
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