Yaskawa Motion Control G7 Drive Software - Manual (Page 19)

Date: 05/16/08, Rev: 08-05 Page 19 of 38 TM.G7SW.117
ABSOLUTE (GRAY CODE): The encoder can be either machine-mounted or motor-mounted. The motion type has
to be “Linear Absolute” with this style of encoder. If the absolute encoder is machine-mounted, the ratio between
the motor and the encoder must be entered into parameters P3-03 and P3-04, and the encoder counts per
revolution must be entered into P3-02. The encoder requires a DI-16H2 digital input option card and an external
power supply for the encoder. Encoder outputs must be 24VDC and capable of “sinking” current when a logic “low”
is present on the output. This software was tested with a Danaher / Dynapar brand 12-bit by 12-bit gray code
encoder, part number: ai2512122b121.
Figure 6: Gray Code Absolute Encoder Wiring (P3-01 = 2)