Allen-Bradley E300 User Manual

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 369
Protective Trip and Warning Functions Chapter 6
Table 293 - Under Voltage Trip Level (Parameter 357)
Under Voltage Warning
The E300 relay indicates an Under Voltage warning if:
• No warning currently exists
• Under Voltage Warning is enabled
• Voltage is present
• Under Voltage
• Inhibit Time has expired
• The
min
imum phase voltage is equal to or less than the Under Voltage
War n
in g L e vel
When the Under Voltage Warning conditions are satisfied, the:
• TRIP/WARN LED flashes a yellow 1-long / 1-short blink pattern
• Bit 0 in Voltage Warning Status (Parameter 11) sets to 1
• Bit 1 in Device Status 0 (Parameter 20) sets to 1
• Any relay outputs configured as a Warning Alarm close
Under Voltage Warn Level
Under Voltage Warn Level (Parameter 358) allows you to define the voltage at
which the E300 relay indicates a warning. It is user-adjustable from 0…6553.5
volts.
Table 294 - Under Voltage Warn Level
Default Value 100.0
Minimum Value 0.0
Maximum Value 6553.5
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 10
Units Volts
IMPORTANT
The Under Voltage Inhibit Time starts after a phase voltage transitions from 0V
to 20V L-L. The E300 relay does not begin monitoring for an under voltage
condition until the Under Voltage Inhibit Time expires.
Default Value 400.0
Minimum Value 0.0
Maximum Value 6553.5
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 10
Units Volts

Allen-Bradley E300 Specifications

General

Type	Electronic Overload Relay
Mounting	DIN Rail or Panel Mount
Protection Class	IP20
Voltage Range	24…690 V AC/DC
Communication Options	EtherNet/IP, DeviceNet
Protection	Overload, phase loss, ground fault
Operating Temperature	-20°C to 60°C