Rockwell Automation 193-EC4 EC4 Current Monitoring Relay User Manual - Manual (Page 44)

Rockwell Automation Publication 193-UM011A-EN-P - September 2010 45
Protective Trip and Warning Functions Chapter 3
• Bit 0 of Parameter 21, Device Status, will go to “1”
• The Trip Relay contact will open
• The outputs will be placed in their Protection Fault State (if so
programmed)
Comm Idle Warning
The EC4 Current Monitoring Relay will indicate a Comm Idle warning if:
• No warning currently exists
• Comm Idle Warning is enabled
• The network controller that is communicating to the EC4 Current
Monitoring Relay is placed in idle mode
When the Comm Idle warning conditions are satisfied, the following will occur:
• The TRIP/WARN LED will flash an amber 11-blink pattern
• Bit 10 in Parameter 15, Warning Status, will go to “1”
• Bit 1 in Parameter 21, Device Status, will go to “1”
If a communication idle occurs and either Comm Idle Trip is not enabled or the
Pr FltState parameters are set to “Ignore”, the following will occur:
• The outputs will be placed in their Comm Idle State
Remote Trip
The Remote Trip function provided in series B and later devices allows the
capability of tripping the EC4 Current Monitoring Relay from a remote source
(for example, a vibration switch). Proper set-up requires that Remote Trip is
enabled in Parameter 24,
Trip Enable, and that an input assignment (Parameters
83 – 86) is configured for Remote Trip.
When the remote trip condition sensor contact closes:
• The TRIP/WARN LED will flash a red 15-blink pattern
• Bit 14 in Parameter 14, Trip Status, will go to “1”.
• The Trip relay contact will open.
IMPORTANT The Protection Fault state of OUT A and OUT B is defined by Parameter
65 (OUTA Pr FltState), Parameter 66 (OUTA Pr FltValue), Parameter 71
(OUTB Pr FltState), and Parameter 72 (OUTB Pr FltValue).
IMPORTANT The Comm Idle State of OUT A and OUT B is defined by Parameter 69
(OUTA Dn IdlState), Parameter 70 (OUTA Dn IdlValue), Parameter 75
(OUTB Dn IdlState), and Parameter 76 (OUTB Dn IdlValue).