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Stop threshold, E stop threshold, Stop – Delta RMC151 User Manual

Page 919: Threshold

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9 Register Reference

Type: Axis Parameter Register Bit Parameter

RMC70 Address: %MDn.9.0, where n = 12 + the axis number

RMC150 Address: %MDn.9.0, where n = 24 + the axis number

System Tag: _Axis[n].PriInputBits.Rotary

How to Find: Axes Parameters Pane, Setup tab: Primary Control Setup

Data Type: bit

Range: Linear (0), Rotary (1)

Default Value: Linear (0)

Description

The Linear/Rotary Bit Parameter specifies whether the axis is set as a Rotary axis or a

Linear axis. Each axis’s input is either linear or rotary. When this bit is set, the axis is

rotary. When this bit is cleared, the axis is linear.
To determine whether you should set your axis as Rotary, see the Rotary Axis topic.
See the Primary Input Bits Register for details about the register containing this bit.

Note: For rotary axes, the encoder counts per revolution must be a multiple of 2.

Changing this Parameter
Because this parameter affects motion, the axis must be disabled or in Direct Output

before writing to this parameter. The Enabled and Direct Output Status Bits indicate these

states of the axis. When changing this parameter from RMCTools, the software will

automatically do this for you. This may cause a halt on the axis, which is expected.

9.2.2.2.15. Stop Threshold

Type: Axis Parameter Register

RMC70 Address: %MDn.5, where n = 12 + the axis number

RMC150 Address: %MDn.5, where n = 24 + the axis number

System Tag: _Axis[n].StopThreshold, where n is the axis number

How to Find: Axes Parameters Pane, All tab: Feedback

Data Type: REAL

Units: pu/s

Range: ≥ 0

Default Value: 0.1

Description

The Stop Threshold specifies a velocity threshold for considering an axis stopped. When

the absolute value of the velocity falls below this threshold, the axis is considered

stopped, and the Stopped Status bit will be set. The Stopped bit is not latched and will

clear when the velocity exceeds the threshold.
The Stop Threshold does not apply to axes with only pressure or force control because

the axis may be physically moving even though the pressure does not change. The

stopped status of axes with position-pressure or velocity-pressure control is determined

by the position or velocity axis.

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