RMS Technologies IMC17 INTEGRATED MOTOR CONTROLLER/DRIVER - Manual (Page 18)

Encoder Usage
The IMCE17 is not a closed loop system. The encoder does not connect to the
controller/driver. A separate PLC or controller system that can talk to the R256
board and understand the E2 encoder can create a closed loop system.
The IMCE17 can also be used as reference to home by connecting to an US Digital E2
Encoder. The pinouts are as follows:
Pin Number Function
1 Ground
2 Index
3 Channel A
4 + 5 VDC
5 Channel B
Table 9
The E2 encoder requires a separate +5 Volt power supply, as the IMCE17 cannot
provide a strong enough source of power.
In order to use the Indexer as a reference to home, connect Pin 2 from the encoder
to one of the inputs on the controller. From the controller’s side, for best results use
Pin 5, the switch closure to ground.
In addition, use a pull-down resistor (10k Ω) to ensure that the controller will
recognize the difference between high and low (4.85V and 0.5V).
Figure 11: Encoder Pin Connection Schematic
After successfully connecting the encoder to the controller, now you can program the
controller to run continuously. The motor will stop movement when the indexer goes
high. This will send the high signal to Pin 5 on the controller.
If using channel 1, use this command to start the homing routine:
/1P0R
RMS Technologies Page 18 4/3/2009
IMC17/IMCE17 User Manual Rev 1.06