128 Rockwell Automation Publication MOTION-RM002H-EN-P-February 2018
Ratio Format BOOLEAN BOOLEAN Immediate The desired ratio specification format.
Select either:
0 = real gear ratio
1 = integer fraction of slave encoder
counts to master encoder counts.
Clutch BOOLEAN BOOLEAN Immediate When Clutch is enabled, motion
control ramps the slave axis up to
gearing speed at the instruction’s
defined Acceleration value. If not
enabled, the Slave axis immediately
locks onto the Master axis. If the
Master Axis is currently moving this
condition results in an abrupt
uncontrolled acceleration event of the
Slave Axis which can cause the axis to
fault. Select either:
0 = enabled
1 = disabled
Accel Rate BOOLEAN BOOLEAN Immediate or
Tag
Acceleration rate of the Slave Axis in
% or Acceleration Units. It is applied
when the Clutch feature is enabled.
Accel Units DINT DINT Immediate The units used to display the
Acceleration value. Select either:
0 = units per sec
2
1 = % of maximum acceleration
See Structured Text Syntax for more information on the syntax of expressions
within structured text.
For the operands that require you to select from available options, enter your
selection as described below.
This Operand Has These Options Which You
Enter as Text Or Enter as a
Number
MasterReference actual
command
0
1
RatioFormat real
fraction_slave_master_counts
0
1
Clutch enabled
disabled
0
1
AccelUnits unitspersec2
%ofmaximum
0
1
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