Expansion bus warning, Emergency start – Rockwell Automation 592- E300 Overload Relay User Manual User Manual
Page 71
Rockwell Automation Publication 193-UM015B-EN-P - June 2014
71
System Operation and Configuration Chapter 3
Expansion Bus Warning
Expansion Bus Warning is enabled by setting Control Warning Enable
(Parameter 192) bit 10 to 1. When communications is disrupted between the
Control Module and digital and/or analog expansion I/O modules, the E300
Electronic Overload Relay will go into a warning state in which the Trip/Warn
LED on the Communication Module and Operator station will blink a yellow 3
long and 11 short blinking pattern.
Table 50 - Expansion Bus Warning Bit Function Detail— Control Warning Enable (Parameter 192)
To return to Operation/Run Mode, verify that the expansion bus cables are
properly plugged into the Bus In and Bus Out ports of all of the expansion
modules. When all of the expansion I/O modules’ status LEDs are solid green,
the warning state of the E300 Electronic Overload Relay will automatically clear.
Emergency Start
In an emergency, it may be necessary to start a motor even if a protection fault or
a communication fault exists. The trip condition may be the result of a thermal
overload condition or the number of starts exceeded its configuration. These
conditions can be overridden using the Emergency Start feature of the E300
Electronic Overload Relay.
To enable the Emergency Start feature in the E300 Electronic Overload Relay set
the Emergency Start Enable (Parameter 216) to Enable.
Table 51 - Emergency Start (Parameter 216)
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Function
Reserved
X
PTC Warning Enable
X
DeviceLogix Warning Enable
X
Operator Station Warning Enable
Reserved
Reserved
Reserved
Reserved
X
Option Match Warning Enable
X
Feedback Timeout Warning Enable
X
Expansion Bus Warning Enable
X
Number Of Starts Warning Enable
X
Operating Hours Warning Enable
Reserved
Value
Description
0
Disable
1
Enable