Rockwell Automation 592- E300 Overload Relay User Manual - Manual (Page 155)

Rockwell Automation Publication 193-UM015B-EN-P - June 2014 155
Protective Trip and Warning Functions Chapter 5
Table 147 - Power Warning Status (Parameter 12)
Real Power (kW) Protection
The E300 Electronic Overload Relay has the capability to protect against real
power (kW) for specific applications that require the monitoring of both voltage
and current. The user can protect or issue a warning in the event that the real
power (kW) consumption of an electric motor is either too high or too low.
Under kW Inhibit Time
Under kW Inhibit Time (Parameter 378) allows the installer to inhibit an under
real power (kW) trip and warning from occurring during the motor starting
sequence. It is adjustable from 0…250 seconds.
Table 148 - Under kW Inhibit Time (Parameter 378)
Over kW Inhibit Time
Over kW Inhibit Time (Parameter 382) allows the installer to inhibit an over real
power (kW) trip and warning from occurring during the motor starting
sequence. It is adjustable from 0…250 seconds.
Bit
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Function
X Under kW Warning
X Over kW Warning
X Under kVAR Consumed Warning
X Over kVAR Consumed Warning
X Under kVAR Generated Warning
X Over kVAR Generated Warning
X Under kVA Warning
X Over kVA Warning
X Under PF Lagging Warning
X Over PF Lagging Warning
X Under PF Leading Warning
X Over PF Leading Warning
Reserved
Reserved
Reserved
Reserved
Default Value 10
Minimum Value 0
Maximum Value 250
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units Sec