Allen-Bradley E300 - Page 313

Rockwell Automation Publication 193-UM015E-EN-P - October 2015 313
Protective Trip and Warning Functions Chapter 6
Full Load Amps Setting
FLA (Parameter 171) is one of two parameters that affect the E300 relay’s
thermal capacity utilization algorithm. Enter the motor’s full-load current rating
into this parameter.
Table 227 - FLA (Parameter 171)
FLA2 (Parameter 177) is provided for programming the high-speed FLA value in
two-speed motor applications. Activating FLA2 is described in Chapter 4
.
Table 228 - FLA2 (Parameter 177)
USA and Canada Guidelines
• Motor Service Factor ≥ 1.15: For motors with a service factor rating of
1.15 or greater, program the FLA setting to the full-load current rating on
the printed nameplate.
• Motor Service Factor < 1.15: For motors with a service factor rating less
than
1.15, program the FLA setting to 90% of the full-load current rating
on the printed nameplate.
• Wye-Delta (Y-∆) Applications: Follow the application’s service factor
ins
tructions, except divide the full-load current rating on the printed
nameplate by 1.73.
FLA (Parameter 171)
Default Value
0.50 (0.5…30 A Sensing Modules)
6.00 (6…60 A Sensing Modules)
10.00 (10…100 A Sensing Modules)
20.00 (20…200 A Sensing Modules)
Minimum Value 0.50
Maximum Value 65535.00
Parameter Type UDINT
Size (Bytes) 4
Scaling Factor 100
Units Amps
FLA2 (Parameter 177)
Default Value
0.50 (0.5…30 A Sensing Modules)
6.00 (6…60 A Sensing Modules)
10.00 (10…100 A Sensing Modules)
20.00 (20…200 A Sensing Modules)
Minimum Value 0.50
Maximum Value 65535.00
Parameter Type UDINT
Size (Bytes) 4
Scaling Factor 100
Units Amps