Home Input
This input is pulled-up to +5V with a 1KΩ resistor by the controller.
The Home signal originates from the stage and is used for homing the
stage to a repeatable location.
Index(+) Input
The (+) Index input is pulled-up to +5V with a 1KΩ resistor by the
controller and is buffered with a 26LS32 differential receiver. The (+)
Index signal originates from the stage and is used for homing the
stage to a repeatable location.
Index(-) Input
The (-) Index input is pulled-up to +5V and pulled down to ground
with 1KΩ resistors by the controller. This facilitates both single- and
double-ended signal handling into a 26LS32 differential receiver. The
(-) Index signal originates from the stage and is used for homing the
stage to a repeatable location.
Encoder Supply: +5V, 250mA (Maximum)
A +5V DC supply is available from the ESP300. This supply is
provided for stage home, index, travel limit, and encoder feedback
circuitry.
Limit Ground
Ground for stage travel limit signals. Limit ground is combined with
digital ground at the controller side.
Shield Ground
Motor cable shield ground.
C.1.5 Auxiliary Encoder Inputs
This 25 pin D-Sub connector provides input for 3 auxiliary encoder
channels (axis 4, 5, 6). For signal description, see Section C.1.4.
These channels can be used for master-slaving (see Section 4.2),
trackball and other applications. Additionally, 4 digital I/O pins are
provided (See Section C.1.2).
Appendix C – Connector Pin Assignments C-5