Interconnect limit – Rockwell Automation 1440-TB-E XM-944 Process/Temperature Terminal Base User Manual
Page 7

XM-944 Process/Temperature Terminal Base 7
Publication
GMSI10-IN024A-EN-P - May 2010
Refer to the specifications for the specific module for power consumption
and other requirements.
See XM Power Supply Solutions application technique, publication
ICM-AP005A-EN-E, for additional details.
Interconnect Limit
Total current draw through the side connector cannot exceed 3A. A separate
power connection is necessary if the total current draw of the interconnecting
modules is greater than 3A.
XM Power Supply Requirements
Protection
Listed Class 2 rated supply, or
Fused* ITE Listed SELV supply, or
Fused* ITE Listed PELV supply
Output Voltage
24Vdc ± 10%
Output Power
100 Watts Maximum (~4A @ 24Vdc)
Static Regulation
± 2%
Dynamic Regulation
± 3%
Ripple
< 100mVpp
Output Noise
Per EN50081-1
Overshoot
< 3% at turn-on, < 2% at turn-off
Hold-up Time
As required (typically 50mS at full rated load
* When a fused supply is used the fuse must be a 5 amp, listed, fast acting fuse such as
provided by Allen-Bradley part number 1440-5AFUSEKIT.
TIP
If the total current draw for a row of modules is greater than 3A, consider
connecting power to a module near the center of the rail, rather than at a
module on either end. Insure that there is less than 3A load in either direction
from the module where power is connected.