Allen-Bradley E300 User Manual

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 65
Installation and Wiring Chapter 2
Voltage Mode
Voltage Mode (Parameter 252) determines the method for how voltage is
monitored E300 relay. Select the connection type for the appropriate power
system. See Appendix C
for wiring diagrams when using step-down potential
transformers with the 193-ESM-VIG-30A-CT sensing module.
Table 23 - Voltage Mode (Parameter 352)
Potential (Voltage) Transformer Ratio
The E300 relay sensing module catalog number 193-ESM-VIG-30A-CT can be
used with step down potential (voltage) transformers. PT Primary (Parameter
353) and PT Secondary (Parameter 354) allows you to identify the turns ratio of
the step down potential (voltage) transformers in use. The E300 relay
automatically adjusts the measured voltage based on these two configuration
parameters. Use the primary voltage for your voltage protection settings.
Table 24 - PT Primary (Parameter 353)
Table 25 - PT Secondary (Parameter 354)
Default Value 0 = Delta direct or with PTs
Range 0 = Delta direct or with PTs
1 = Wye direct or with PTs
2 = Delta with Delta to Wye PTs
3 = Wye with Delta to Wye PTs
4 = Delta with Wye to Delta PTs
5 = Wye with Wye to Delta PTs
Parameter Type USINT
Size (Bytes) 1
Scaling Factor 1
Units
Default Value 480
Minimum Value 1
Maximum Value 65535
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 1
Units Volts
Default Value 480
Minimum Value 165535
Maximum Value
Parameter Type UINT
Size (Bytes) 2
Scaling Factor 1
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