National Instruments MID-7654 User Manual And Specifications

Also see for NI MID-7652: Overview User guide

National Instruments MID-7654 User Manual And Specifications Manual pdf 20 page image

© National Instruments Corporation 19 MID-7654/7652 Servo Power Motor Drive User Guide5. Plug the servo motor cables into the servo motor terminals of the MID-7654/7652. The cables mustbe placed over the bottom mounting plate of the rear guard.6. Re-attach the protection covera. Insert the tab of the protection cover, shown in Figure 9, into the slot on the bottom mountingplate.b. Lower the protection cover over the servo motor cables and secure it to the side of the bottommounting plate using the two screws you removed in step 4.7. Ensure that the rear guard is held securely in place before reconnecting your MID-7654/7652 to apower outlet.Encoder Terminal BlocksFor quadrature incremental encoder signals, each MID-7654/7652 axis has a separate 8-positionremovable screw terminal block. Where applicable, the MID-7654/7652 accepts two types of encodersignal inputs: single-ended (TTL) or differential line driver. You can accommodate open-collectoroutput encoders by using 2.2 kΩ pullup resistors to +5 VDC.Figure 12 shows the typical encoder wiring pin assignment for single-ended signal input.Note The dotted loop indicates a shielded cable. A line above a signal indicates that the signal isactive low.Figure 12. Typical Single-Ended Encoder Wiring Pin AssignmentFigure 13 shows the typical encoder wiring pin assignment for differential line driver signal inputs.Figure 13. Typical Differential Line Driver Encoder Wiring Pin AssignmentIf the encoder cable length is greater than 10 ft, use encoders with line driver outputs for yourapplications. Power for a +5 V encoder—generated by a power supply inside the MID-7654/7652—isavailable on pin 7.12345678Encoder AEncoder BEncoder Index+5 VDigital Ground12345678Encoder AEncoder AEncoder BEncoder BEncoder IndexEncoder Index+5 VDigital Ground