Rockwell Automation Publication 193-UM015E-EN-P - October 2015 155
Chapter 5
Operating Modes
Introduction
The E300™ Electronic Overload Relay supports up to 54 operating modes, which
consist of configuration rules and logic to control typical full-voltage motor
starters, including:
• O
verload
• Non-reversing starter
• Reversing starter
• Wye/Delta (Star/Delta) starter
• Two -speed starter
• Monitoring device
This
chapter explains the configuration rules, logic, and control wiring that is
requ
ired for the available operating modes (Parameter 195). Failure to follow the
configuration rules causes the E300 relay to go into Invalid Configuration Mode
and trip on a configuration trip.
Overload Operating Modes
The overload-based operating modes of the E300 relay make the E300 operate as
a traditional overload relay, in which it interrupts the control circuit of a
contactor coil with a normally closed trip relay or a normally open control relay.
There are four overload-based operating modes to choose from:
• Ne
twork
• Operator Station
• Local I/O
• Custom
Overload (Network)
The E300 relay’s default Operating Mode (Parameter 195 = 2) is Overload
(Network), in which the E300 operates as a traditional overload relay with one
output relay that is assigned as a normally closed trip relay or a normally open
control relay. You can use network commands to control the control relay or any
of the remaining output relays that are assigned as normal output relays.
The reset button of the E300 Operator Station is enabled for this operating
mode.
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