Rockwell Automation 1440-SPD02-01RB XM-220 Dual Speed Module - Manual (Page 34)

Publication GMSI10-UM004B-EN-P - May 2010
26 Installing the XM-220 Dual Speed Module
The XM-220 switched buffered output can be connected to as many as 19
XM-12X modules, which includes the XM-120, XM-121, XM-122, and
XM-123 modules. Figure 2.14 shows the switched buffered output connection
to an XM-12X module.
Figure 2.14 Switched Buffered Output
Connecting the 4-20mA Outputs
The module includes an isolated 4-20mA per channel output into a maximum
load of 300 ohms. The measurements that the 4-20mA output tracks and the
signal levels that correspond to the 4mA and 20mA are configurable. Refer
to 4-20mA Output Parameters on page 58.
Wire the 4-20mA outputs to the terminal base unit as shown in Figure 2.15.
IMPORTANT
To invert the input signal, connect a jumper from terminal
20 (Switched Buffer -), instead of terminal 4, on the
XM-220 terminal base to terminal 4 (Tach/Signal In +) on
the XM-12X terminal base.
IMPORTANT
Make certain to set the Measurement Mode parameter to
"Single Redundant Channel." Refer to Measurement Mode
Parameter on page 46.
TIP
When the Measurement Mode parameter is set to either
"Dual Channel" or "Reverse Rotation," the Switched
Buffer output will correspond to channel 1 input.