390 Rockwell Automation Publication 193-UM015E-EN-P - October 2015
Chapter 6 Protective Trip and Warning Functions
Table 321 - Under kW Warn Level (Parameter 381)
Over kW Trip
The E300 relay trips with an Over kW indication if:
• No trip currently exists
• Over kW Trip is enabled
• Current is present
• Voltage is present
• Over kW Inhibit Time has expired
• The total real power (kW) is greater than the Over kW Trip Level for a
tim
e
period greater than the Over kW Trip Delay.
If the E300 relay trips on an over real power (kW), the:
• TRIP/WARN LED status indicator flashes a red 2-long / 2-short blink
patter
n
• B
it 1 in Power Trip Status (Parameter 6) sets to 1
• Bit 0 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Trip Relay open
• Any relay outputs configured as a Control Relay open
• Any relay outputs configured as a Trip Alarm close
• Any relay outputs configured as a Normal Relay are placed in their
Prote
ction Fault state (if so programmed)
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kW
The Under kW Warning function does not include a time delay feature. Once
the Under kW Inhibit Time has expired, the Under kW Warning indication is
instantaneous.
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