Allen-Bradley 1440-SDM02-01RA, User Manual, Page: 89 / 168

Rockwell Automation Publication 1440-UM001D-EN-P - September 2016 89
Configure the XM-124 Standard Dynamic Measurement Module Chapter 2
4…20 mA Output Parameters
The 4…20 mA output parameters define the characteristics of the two 4…20
mA output signals. The parameters are the same for each output.
Table 17 - 4…20 mA Parameters
Parameter Name Description Options/Comments
Enable Enables/disables the 4…20 mA output.
Measurement Sets the type of measurement and the channel that the 4…20 mA
output signal tracks. Options:
• Ch1 / Ch2 Overall
• Ch1 / Ch2 Gap
• Ch1 / Ch2 Band 1–4
• Speed
• Mag
• Ch1 / Ch2 1X Mag
• Ch1 / Ch2 2X Mag
• Ch1 / Ch2 3X Mag
• Ch1 / Ch2 Not 1X
• Ch1 / Ch2 Sum Harmonics
• Acceleration
• Ch1 / Ch2 Thrust Position
• Ch1 / Ch2 gSE Overall
• Ch1 / Ch2 Tracking Mag
• Ch1 / Ch2 Band Pass
• Ch1 / Ch2 Eccentricity
Min Range The measured value associated with the 4 mA. Same measurement unit as Output Data Unit
selection for the specified channel
.
Max Range The measured value associated with the 20 mA.
XM Configuration
Utility EDS File
Check to enable Enabled
Clear to disable Disabled
IMPORTANT Measured values between Min Range and Max Range are scaled into the
range from 4…20 to produce the output value. The Min Range value
does not have to be less than the Max Range value. If the Min Range
value is greater than the Max Range value, then the output signal is
effectively inverted from the input signal.
IMPORTANT The 4…20 mA outputs are either on or off. When they are on, the
4…20 mA outputs overshoot the 4 mA and 20 mA limits by 10% when
the measurement exceeds the minimum and maximum range. The
minimum current produced is 3.6 mA and the maximum current
produced is 22 mA.
When the 4…20 mA outputs are off, they produce a current
approximately 2.9 mA. The 4…20 mA outputs are off under the
following conditions:
The 4…20 mA outputs are set to ‘Disable’.
See Table 17 on page 89 .
The module is in Program mode.
A transducer fault or tachometer fault occurs that affects the
corresponding measurement.