392 Rockwell Automation Publication 193-UM015E-EN-P - October 2015
Chapter 6 Protective Trip and Warning Functions
Table 323 - Over kW Trip Level (Parameter 384)
Over kW Warning
The E300 relay indicates an Over kW warning if:
• No warning currently exists
• Over kW Warning is enabled
• Current is present
• Voltage is present
• Over kW Inhibit Time has expired
• The total real power (kW) is equal to or greater than the Over kW
War n
in g L e vel
When the Over kW Warning conditions are satisfied, the:
• T
RIP/WARN LED flashes a yellow 2-long / 2-short blink pattern
• Bit 1 in Power Warning Status (Parameter 12) sets to 1
• Bit 1 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Warning Alarm close
Over kW Warn Level
Over kW Warn Level (Parameter 385) allows you to define the real power (kW)
at which the E300 relay indicates a warning. It is user-adjustable from
0…2,000,000 kW.
Table 324 - Over kW Warn Level
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kW
The Over kW Inhibit Time starts after a phase voltage transitions from 0V to
20V L-L and a phase of load current transitions from 0 A to 30% of the
minimum FLA setting of the device. The E300 relay does not begin monitoring
for an over real power (kW) condition until the Over kW Inhibit Time expires.
Default Value 0.000
Minimum Value 0.000
Maximum Value 2000000.000
Parameter Type DINT
Size (Bytes) 4
Scaling Factor 1000
Units kW
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