Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 187)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 187
Protective Trip and Warning Functions Chapter 5
Table 188 - Over Power Factor Lagging Trip Level (Parameter 416)
Over Power Factor Lagging Warning
The E300 Electronic Overload Relay will indicate an Over kVAR warning if:
• No warning currently exists
• Over Power Factor Lagging Warning is enabled
• Current is present
• Voltage is present
• Over Power Factor Lagging Inhibit Time has expired
• The total power factor lagging is equal to or greater than the Over Power
Factor Lagging Warning Level
When the Over Power Factor Lagging Warning conditions are satisfied, the:
• TRIP/WARN LED will flash a yellow 2-long / 10-short blink pattern
• Bit 9 in Power Warning Status (Parameter 12) will set to 1
• Bit 1 in Device Status 0 (Parameter 20) will set to 1
• Any relay outputs configured as a Warning Alarm will close
Over Power Factor Lagging Warn Level
Over Power Factor Lagging Warn Level (Parameter 417) allows the user to define
the power factor lagging at which the E300 Electronic Overload Relay will
indicate a warning. It is user-adjustable from 0…2,000,000 kW.
Table 189 - Over Power Factor Lagging Warn Level (Parameter 417)
Default Value -95
Minimum Value -100
Maximum Value 0
Parameter Type SINT
Size (Bytes) 1
Scaling Factor 1
Units %
IMPORTANT The Over Power Factor Lagging Inhibit Time starts after a phase voltage
transitions from 0V to 20V L-L and a phase of load current transitions from 0A
to 30% of the device’s minimum FLA setting. The E300 Electronic Overload
Relay does not begin monitoring for an over power factor lagging condition
until the Over Power Factor Lagging Inhibit Time expires.
Default Value -90
Minimum Value -100
Maximum Value 0
Parameter Type SINT
Size (Bytes) 1
Scaling Factor 1
Units %