Parker 890 - Appendix B - Sequencing Logic; Appendix B: Sequencing Logic

Sequencing Logic
890CS Common Bus Supply - Frames B & D; 890CD Common Bus Drive and 890SD Standalone Drive - Frames B, C & D Page B-1
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Appendix B
Appendix B : Sequencing Logic
The 890CD Common Bus Drive and 890SD Standalone Drive's reaction to commands is defined by a state
machine. This determines which commands provide the demanded action, and in which sequence.
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Main sequencing states
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State outputs of the SEQUENCING LOGIC
function block
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Transition of states
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State diagram
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External control of the drive