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Command: set control direction (96), Command: read register (111), Set control direction (96) – Delta RMC151 User Manual

Page 843: Read register (111)

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8 Command Reference

This command sets the Integrator Mode. Currently, only two modes are available, Always

On and Always Off. This command allows the Integrator mode to be changed at any time.
The Integrator Mode applies to both the primary and secondary control loops.

8.6.8. Command: Set Control Direction (96)

Supported Axes: Position, Velocity, Pressure, and Force Control Axes

Supported Control

Modes:

Position PID, Position I-PD, Velocity PID, Velocity I-PD,

Pressure/Force Control

Firmware

Requirement:

3.20 or newer


See the Commands Overview topic for basic command information and how to issue

commands from PLCs, HMIs, etc.

Command Parameters

# Parameter Description

Range

1 Direction

Positive (1)

Negative (-1)

a valid integer as

described

Description

This command, together with the Unidirectional Mode axis parameter, is specifically

designed for systems that require a unipolar Control Output, but need to switch direction

externally. This command is only valid when Unidirectional Mode is enabled—that is, set

to Positive, Negative, or Automatic.
If the Unidirectional Mode axis parameter is set to Positive or Negative, issue the Set

Control Direction (96) command at any time to set the desired direction.
If the Unidirectional Mode axis parameter is set to Automatic, the direction is determined

based on the Target Velocity. The Set Control Direction (96) command may still be used

while the axis is stopped to indicate a change in the system direction prior to a move

command. Notice that issuing this command will have no effect in Automatic mode while

the Target Velocity is not stopped.
For many systems, this command is unnecessary, because the Automatic option handles

direction changes very well for most two-valve systems, and for a unidirectional belt, the

direction is set by the Unidirectional Mode parameter on startup and never needs to be

changed after that.
This command can be issued while the axis in closed loop control.
For more details, see the Unidirectional Mode topic.

8.6.9. Command: Read Register (111)

Supported Axes: All

Firmware Requirement: 1.00 or newer

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