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 215)

Rockwell Automation Publication 193-UM002I-EN-P - December 2011 215
Troubleshooting Chapter 12
Network Status LED
This LED provides information on the state of the E3 Overload Relay’s
DeviceNet network connection. Refer to the DeviceNet Troubleshooting
Procedure
section for descriptions of the various states this LED can take and the
associated recommended corrective action.
OUT A & OUT B LEDs
The amber OUT A or OUT B LED illuminates when the output is commanded
on. However, an illuminated LED does not guarantee that the output is actually
on.
IN 1,2,3 & 4 LEDs
The amber IN1, IN2, IN3, or IN4 LED illuminates when a user-connected
contact is closed.
Power-Up Sequence After the E3 Overload Relay is installed according to the guidelines specified in
Chapter 2, apply power to the overload relay’s DeviceNet connector. After
applying power, the following sequence should occur:
1. The Trip relay should close 2.35 seconds later and the TRIP/WARN LED
will not flash (unless a “Non-Volatile Fault” previously existed or a fault
condition is present).
2. At the same time, the NETWORK STATUS LED should flash green for
approximately 2 seconds, then red for 1/4 second. If autobaud is enabled
and the E3 Overload Relay is connected to an active network, the green
LED will continue to flash once the baud rate has been determined. If the
E3 Overload Relay is not connected to an active network, this LED will
not continue to flash.
3. Once the E3 Overload Relay has been allocated by a Master, the
NETWORK STATUS LED will turn solid green.
IMPORTANT Cycling power to the E3 Overload Relay will not clear a
“Non-Volatile Fault”. A “Non-Volatile Fault” must be manually
reset. An Overload or PTC Fault can also be automatically
reset.