Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 17)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 17
Product Overview Chapter 1
turn dials, and it provides diagnostic LEDs to provide system status at the panel.
The E300 Electronic Overload Relay supports two network protocols:
• EtherNet/IP
• DeviceNet
The E300 EtherNet/IP Communication Module has two RJ-45 connectors that
function as a switch. Users can daisy chain multiple E300 Electronic Overload
Relays with Ethernet cable, and the module supports a Device Level Ring (DLR).
Optional Add-On Modules Optional Expansion I/O
The E300 Electronic Overload Relay allows the user to add additional digital and
analog I/O to the system via the E300 Electronic Overload Relay Expansion Bus
if the native I/O count is not sufficient for the application on the base relay. Users
can add up to four additional Digital I/O Expansion Modules that have 4 inputs
(120V AC, 240V AC, or 24V DC) and 2 relay outputs.
Users can also add up to four additional Analog I/O Expansion Modules, which
have three independent universal analog inputs and one isolated analog output.
The independent universal analog inputs can accept the following signals:
• 4…20 mA
• 0…20 mA
• 0…10V DC
• 1…5V DC
• 0…5V DC
• RTD Sensors (Pt, Cu, Ni, & NiFe)
• NTC Sensors
The isolated analog output can be programmed to reference a traditional analog
signal (4…20 mA, 0…20 mA, or 0…10V DC) to represent the following
diagnostic values:
• Average %FLA
• %TCU
• Ground Fault Current
• Current Imbalance
• Average L-L Voltage
• Voltage Imbalance
• Total kW
• Total kVAR
• Total kVA
• Total Power Factor
• User Defined Value