Frequency reference control, Torque reference control – Yaskawa DeviceNet Option Card CM05x User Manual

Page 52

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Drive Operation on DeviceNet 7-11

Frequency Reference Control


When controlling the speed of the Drive from the DeviceNet network, frequency reference can be accessed in
various ways:

1. Assembly 20 (Class 4, Instance 20, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in RPM. See Appendix B.

2. Assembly 21 (Class 4, Instance 21, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in RPM. See Appendix B.

3. Assembly 22 (Class 4, Instance 22, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in RPM. See Appendix B.

4. Assembly 23 (Class 4, Instance 23, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in RPM. See Appendix B.

5. Assembly 120 (Class 4, Instance 120, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in Hz. See Appendix B.

6. Assembly 122 (Class 4, Instance 122, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in Hz. See Appendix B.

7. Assembly 124 (Class 4, Instance 124, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in Hz. See Appendix B.

8. Assembly 126 (Class 4, Instance 126, Attribute 3)

Bytes 2 and 3 of this assembly provide speed control in Hz. See Appendix B.

9. AC Drive Class 42, Instance 1, Attribute 8

This attribute provides speed control in RPM. See Appendix A.

10. Yaskawa Command Class 100, Instance 1, Attribute 2

This attribute provides speed control in Hz. See Appendix A.


If the Drive speed is being controlled with Polled I/O messages, then Assembly 20, 21, 22, 23, 120, 122, 124 or
126 are the only methods available from the list above.

Methods 1, 2, 3, 4 and 8 conform to the DeviceNet AC Drive Device Profile. See Chapter 8 for more information.

Torque Reference Control


In the F7 and G7 Drive, Flux Vector Control mode (A1-02=3) allows the Drive to be in Torque Control. When the
reference source is controlled from the DeviceNet Option Board (b1-01=3), the torque reference to the Drive may
be set via DeviceNet. When controlling the torque of the Drive from the DeviceNet network, torque reference
can be accessed in various ways:

1. Assembly 22 (Class 4, Instance 22, Attribute 3)

Bytes 4 and 5 of this assembly provide torque control in N-m*(2

torque_scale

). See Appendix B.

2. Assembly 23 (Class 4, Instance 23, Attribute 3)

Bytes 4 and 5 of this assembly provide torque control in N-m*(2

torque_scale

). See Appendix B.

3. Assembly 121 (Class 4, Instance 121, Attribute 3)

Bytes 2 and 3 of this assembly provide torque control in % of rated. See Appendix B.

4. Assembly 122 (Class 4, Instance 122, Attribute 3)

Bytes 2 and 3 of this assembly provide torque control in % of rated. See Appendix B.

5. Assembly 125 (Class 4, Instance 125, Attribute 3)

Bytes 4 and 5 of this assembly provide torque control in % of rated. See Appendix B.

6. Assembly 126 (Class 4, Instance 126, Attribute 3)

Bytes 4 and 5 of this assembly provide torque control in % of rated. See Appendix B.

7. AC Drive Class 42, Instance 1, Attribute 12

This attribute provides torque control in N-m*(2

torque_scale

). See Appendix A.

8. Yaskawa Command Class 100, Instance 1, Attribute 3

This attribute provides torque control in % of rated. See Appendix A.

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