Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 17

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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
funct
ion 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 m
A
0…20 mA
0…10V DC
1…5V DC
0…5V DC
RTD Sensors (Pt, Cu, Ni, & NiFe)
NTC Sensors
The is
o
lated analog output can be programmed to reference a traditional analog
signa
l (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
To ta l kW
To ta l kVA R
To ta l kVA
To ta l Po we r Fa ct or
User Defined Value
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