Copley Controls XM2-230-20, Instruction

Page: 18 / 34

Signal
Axis A
Pin
Axis B
Pin
enc A J12-36 J12-42
enc /A J12-21 J12-27
enc B J12-35 J12-41
enc /B J12-20 J12-26
enc X J12-34 J12-40
enc /X J12-19 J12-25
+5V 32,17 J12-38,23
Sgnd J12-31,16 J12-37,22
F.G. J12-1
Signal
Axis A
Pin
Axis B
Pin
enc A Pulse CW J12-36 J12-42
enc /A /Pulse /CW J12-21 J12-27
enc B Dir CCW J12-35 J12-41
enc /B /Dir /CCW J12-20 J12-26
enc X J12-34 J12-40
enc /X J12-19 J12-25
+5V 32,17 J12-38,23
Sgnd J12-31,16 J12-37,22
Frame Gnd J12-1
CoMMAnD inPUtS MUlti-PoRt
Secondary
Encoder Input
Input/Output
Select
Quad A/B/X primary
encoder
MAX3032
MAX3097
Buffered A/B/X signals
from primary encoder
Secondary
Encoder Input
Input/Output
Select
MAX3032
MAX3097
Emulated Quad A/B
signals from
analog Sin/Cos encoder
or resolver
Emulated A/B signals
Input/Output
Select
MAX3097
MAX3032
A/B/X signals from
digital encoder
Input/Output
Select
MAX3097
MAX3032
Pulse/Dir or CU/CD
differential commands
RoHS
Xenus
PLUS
2-Axis
MACRO
XM2
Rev 01
Copley Controls, 20 Dan Road, Canton, MA 02021, USA
16-01419 Rev A Page 18 of 34
AS BUFFERED OUTPUTS FROM A DIGITAl
QUADRATURE PRIMARy 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 J12,
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.
MultI-Mode encoder port: feedback outputs
BUFFeReD oUtPUtS MUlti-PoRt
MultI-Mode encoder port: coMMand Inputs
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 single-ended inputs. But, at higher
frequencies these are likely to be differential
signals in which case the multi-mode port
can be used.