Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 27
Install the CompactLogix 5370 L1 Controller Chapter 2
• The embedded power supply for the series A L16ER, L18ER, or
L18ERM controller is a 24V DC nominal, non-isolated power supply
with an input range of 10…28.8V DC. You wire the embedded power
supply via a removable connector.
• The embedded power supply for the series B L16ER, L18ER, L18ERM,
and series A L19ER controller is a 24V DC nominal, isolated
power supply. The input range of the power supply is 10…28.8V DC.
You wire the embedded power supply via a removable connector.
• A second, fused external power supply must be used to provide power to
other components for only series A L16ER, L18ER, and L18ERM
controllers (see Appendix C
).
• Power for other components can be provided from the external power
supply that is used to provide power to the system for only series B
L16ER, L18ER, L18ERM Controllers, and series A L19ER controllers.
• The controller has 16 embedded digital input points and 16 embedded
digital output points. You wire the input and output points via a
removable connector.
IMPORTANT You must use a dedicated external Class 2/SELV-approved power
supply to provide power to the system, according to needs of the
application, and within the operating voltage range of the
controller for only series A L16ER, L18ER, and L18ERM controllers.
You cannot use the external power supply that provides power to
the embedded power supply of the controller to provide power to
any other components or devices in the application for only series A
L16ER, L18ER, and L18ERM controllers.
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