Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 159)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 159
Protective Trip and Warning Functions Chapter 5
Table 152 - Under kW Warn Level (Parameter 381)
Over kW Trip
The E300 Electronic Overload Relay will trip 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
time period greater than the Over kW Trip Delay.
If the E300 Electronic Overload Relay trips on an over real power (kW), the:
• TRIP/WARN LED status indicator will flash a red 2-long / 2-short blink
pattern
• Bit 1 in Power Trip Status (Parameter 6) 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
Protection 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
IMPORTANT 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.