Newport ESP6000 User Manual page 265

Stepper Motor Phase 1 Output
This output must be connected to Winding A+ lead of a two-phase stepper
motor. The voltage seen at this pin is pulse-width modulated with a
maximum amplitude of 60V DC.
Stepper Motor Phase 2 Output
This output must be connected to Winding A- lead of a two-phase stepper
motor. The voltage seen at this pin is pulse-width modulated with a
maximum amplitude of 60V DC.
Stepper Motor Phase 3 Output
This output must be connected to Winding B+ lead of a two-phase stepper
motor. The voltage seen at this pin is pulse-width modulated with a
maximum amplitude of 60V DC.
Stepper Motor Phase 4 Output
This output must be connected to Winding B- lead of a two-phase stepper
motor. The voltage seen at this pin is pulse-width modulated with a
maximum amplitude of 60V DC.
Tacho Generator(+) Input
This input can be connected to the positive lead of a tachometer. The
maximum input voltage range is +/-60V.
Tacho Generator(-) Input
This input can be connected to the positive lead of a tachometer. The
maximum input voltage range is +/-60V.
Travel(+) Limit Input
This input is pulled-up to +5 volts with a 4.7KΩ resistor by the controller
and represents the stage positive direction hardware travel limit. The
active true state is user-configurable. The default is active HIGH.
Travel(–) Limit Input
This input is pulled-up to +5 volts with a 4.7KΩ resistor by the controller
and represents the stage negative direction hardware travel limit. The
active true state is user-configurable. The default is active HIGH.
Encoder A(+) Input
The A(+) input is pulled-up to +5 volts with a 1KΩ resistor. The signal is
buffered with a 26LS32 differential receiver. The A(+) encoder encoded
signal originates from the stage position feedback circuitry and is used for
position tracking.
Appendix C — Connector Pin Assignments C - 1 9
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