Rockwell Automation 193-EC1_2_3_5, 193-ECPM,592-EC1_2_3_5 E3 and E3 Plus Solid-State Overload Relay User Manual - Manual (Page 14)

14 Rockwell Automation Publication 193-UM002I-EN-P - December 2011
Chapter 1 Product Overview
Overload Relay Features Trip Relay
When the E3 Overload Relay is in the unpowered state, the trip relay contact is
open. The trip relay contact closes approximately 2 to 35 seconds after power is
applied if no trip condition exists.
Inputs & Outputs
In addition to the trip relay, the E3 Overload Relay provides inputs and outputs as
shown below.
Table 1 - Inputs & Outputs
The status of each input and output can be monitored over the DeviceNet
network through Device Status, Parameter 21, or one of the input assemblies.
Additionally, the outputs can be controlled over the network using one of the
output assemblies. Refer to Appendix B for listings of the available input and
output assemblies.
Series B and later E3 Plus Overload Relays offer added flexibility by providing the
capability to perform control functions with the inputs and outputs through
DeviceLogix™.
Series B or later E3 Overload Relay inputs are independently configurable for trip
reset, remote trip, two-speed, and normal operation.
Model Inputs ➊ Outputs
EC1 2 1
EC2, EC3 4 2
EC5 6 2
➊ Inputs are rated at 24V only. For 120V AC inputs, add the AC Input Interface Module, Cat. No. 193-EIMD.
ATTENTION: If the outputs are being commanded via an explicit
message, ensure that there is no established I/O connection that is
actively controlling the outputs and that the explicit message connection
has a non-zero expected packet rate (EPR) setting.
ATTENTION: The state of the outputs during a protection fault,
DeviceNet communication fault, or a DeviceNet communication idle may
be dependent on the following OUT A or OUT B parameters: PrFltState, Pr
FltValue, Dn FltState, Dn FltValue, Dn IdlState, and Dn IdlValue. For
details, refer to the Output Setup Group section in Chapter 5.