© National Instruments Corporation 7 MID-7604/7602 Stepper Power Motor Drive User GuideBack Panel Connector WiringFigure 2 shows the connectors located on the back panel of your MID-7604/7602.Figure 2. MID-7604/7602 Back Panel ConnectorsNote Items followed by an asterisk (*) are available on the MID-7604 only.Caution Be sure to turn off the ENABLE switch and the main AC power to your MID-7604/7602and host computer before connecting the accessory to your motion controller.Caution The stepper motor connectors on this drive are energized when the unit is poweredon. Disconnect the MID-7604/7602 unit from the power outlet before connecting wires to ordisconnecting wires from the stepper connectors. Strip back the insulation of the stepper wires to thestepper connectors no more than 7 mm. Failure to do so could result in electric shock leading toserious bodily injury or death.1. Use the interface cable to connect the motion controller to the MID-7604/7602. Wire the motorpower, limit switch, encoder, and I/O terminal blocks as described in this guide and to your specificsystem requirements.Caution You must change the MID-7604/7602 main input fuse on the front panel if you change theline voltage from the factory setting. Refer to the Specifications section of this guide for fusespecifications.2. Use the LINE VOLTAGE SELECT switch to configure the MID-7604/7602 for 115 VAC, 60 Hzor 230 VAC, 50 Hz operation. For proper operation, you must set this switch to match your powersource.3. Finally, install the power cord into the back panel AC connector and plug it in to a correctly ratedpower source.1 Motion Controller Connector2 Analog Input Connector3 Analog Output Connector4 Trigger Connector5 Breakpoint Connector6 AC PowerEncoder Connectors7 Axis 18 Axis 29 Axis 3*10 Axis 4*Limit Connectors11 Axis 112 Axis 213 Axis 3*14 Axis 4*Motor Connectors15 Axis 116 Axis 217 Axis 3*18 Axis 4*1 4 11 128 97 1013 14 615 16 17 18532