Motion MMI-8S installation manual

I/O Function. The Cybernetic User Bits are available at the CI cable connectors and can be used as either inputs or outputs dependent on the command. Note that an output can only drive LEDs such as those in Solid-State relays or optical isolation. An input can only be a passive switch or isolated relay contact across the User Bit and User ground. Connecting any device, at a different potential, to this system through the User Bits, WILL damage the User port; opto-isolation is required. The standard CI cable is the 20 pin which provides limits and home sensor signals, access to the User Bit I/O lines, and VCC power & ground. Refer to Appendix A of this manual.

Other Functions. The Jog function (pin 6) is available at the Jog connector of the CI Cable; see Appendix A. External thumbwheel (pin 12) is not used. Instead refer to the I/O Path option for thumbwheel operation or stand-alone (PLC) mode. Note that the CW-CCW inputs are available in this system as the Emergency Stop option. Also, the Inhibit / Abort (pin 8) is not used in this system. This Abort is not the same as the driver abort (ABR).

Reserved User Bits.

B 0 Enable Driver; must be LO to step. B0 LED will be ON.

B 1 Bit 1 is always the Home Sensor.

B 6 Bit 6 Is the Busy Bit (CTS). See mOde Command.

LED Status Displays.

OFF = Logic High or true ON = Low or false; pin # refers to CY 545 pinout.

BZ Indicates the inverse of pin 27(User Bit 6) DR Indicates the polarity of pin 2 (direction) ST Indicates the polarity of pin 1 (step)

PW Indicates the polarity of pin 3 (stop) SW Indicates the polarity of pin 6 (slew)

B0 Indicates the polarity of pin 21 (User Bit 0) B1 Indicates the polarity of pin 22 (User Bit 1) B2 Indicates the polarity of pin 23 (User Bit 2)

Off = Ready;On = Busy LO = CW

LO = Step pulse LO = Stepping LO = Ramp speed

LO = Enable all drivers

LO = Home Sensor blocked General Purpose User Bit

Reset. To hardware reset or stop the system, cycle the AC power switch located on the rear panel.

Software Configuration

This system is a serial device directed by ASCI character commands. It is configured exactly as described in the Cybernetics controller manuals; except for differences as noted in this manual. Special Commands are created to simplify use of the Basic program.