Rockwell-automation 592- E300 Overload Relay User Manual Manual de usuario Pagina 99

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Rockwell Automation Publication 193-UM015B-EN-P - June 2014 99
Protective Trip and Warning Functions Chapter 5
Jam Trip
The E300 Electronic Overload Relay will trip with a jam indication if:
No trip currently exists
Jam Trip is enabled
Jam Inhibit Time has expired
The maximum phase current is greater than the Jam Trip Level for a time
pe
riod greater than the Jam Trip Delay.
If the E300 Electronic Overload Relay trips on a jam, the:
T
RIP/WARN LED status indicator will flash a red 5-short blink pattern
Bit 4 in Current Trip Status (Parameter 4) will set to 1
Bit 0 in Device Status 0 (Parameter 20) will set to 1
Any relay outputs configured as a Trip Relay will open
Any relay outputs configured as a Control Relay will open
Any relay outputs configured as a Trip Alarm will close
Any relay outputs configured as a Normal Relay will be placed in their
Pr
otection Fault state (if so programmed)
Jam Trip Delay
Jam Trip Delay (Parameter 252) allows the installer to define the time period a
jam condition must be present before a trip occurs. It is adjustable from
0.1…25.0 s.
IMPORTANT
The Protection Fault State of Relay 0, Relay 1, Relay 2, Digital Module 1 Output
Relays, Digital Module 2 Output Relays, Digital Module 3 Output Relays, and
Digital Module 4 Output Relays are defined by the respective parameters:
Output PT00 Protection Fault Action (Parameter 304)
Output PT00 Protection Fault Value (Parameter 305)
Output PT01 Protection Fault Action (Parameter 310)
Output PT01 Protection Fault Value (Parameter 311)
Output PT02 Protection Fault Action (Parameter 316)
Output PT02 Protection Fault Value (Parameter 317)
Output Digital Module 1 Protection Fault Action (Parameter 322)
Output Digital Module 1 Protection Fault Value (Parameter 323)
Output Digital Module 2 Protection Fault Action (Parameter 328)
Output Digital Module 2 Protection Fault Value (Parameter 329)
Output Digital Module 3 Protection Fault Action (Parameter 334)
Output Digital Module 3 Protection Fault Value (Parameter 335)
Output Digital Module 4 Protection Fault Action (Parameter 340)
Output Digital Module 4 Protection Fault Value (Parameter 342)
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