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Chapter 2
Install the Dynamix 1444 Series Monitoring System
36
Module Power Supply Requirements
The Dynamix 1444 series system is powered by single or redundant, 18...32V
DC supplies as follows:
• To comply with the CE Low Voltage Directive (LVD), all power
connections to this equipment must be powered from a source
compliant with the following:
• Safety Extra Low Voltage (SELV), or
• Protected Extra Low Voltage (PELV)
• To comply with UL/CUL requirements, this equipment must be
powered from a source compliant with the following:
• Limited Voltage Supply
If the input power supply is restricted to 8 A, no additional protection is
necessary. However, for supplies with higher current ratings that serve multiple
groups of main modules, the first module of the daisy chain requires an 8 A
current limiting fuse for protection.
The power return line of the main-system power supply must be grounded for
electrical safety reasons.
The required power supply rating can be calculated based on the following (per
module) allowances.
Module Type
Power Load
Main
11.5 W
Expansion relay
1.6 W
Expansion
0.76 W
4...20 mA
Expansion TSC
4 W
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
18V Supply
24V Supply
640 mA
480 mA
90 mA
70 mA
40 mA
30 mA
225 mA
170 mA
32V Supply
360 mA
50 mA
22 mA
125 mA
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