Allen-Bradley PowerFlex400 User Manual

3-50 Programming and Parameters
Aux Relay Card Group (continued)
R243 [Aux 1 Ref Add]
R246 [Aux 2 Ref Add]
R249 [Aux 3 Ref Add]
Sets the amount to add to the PID reference once the next auxiliary motor is turned on to compensate
for a drop in the pipe due to the increased flow in a typical pump system.
Values Default: 0.0%
Min/Max: 0.0/100.0%
Display: 0.1%
R250 [Aux Start Delay]
Sets the delay time before turning on the next auxiliary motor once the output frequency has risen
above the value set in [Aux X Start Freq].
Values Default: 5.0 Secs
Min/Max: 0.0/999.9 Secs
Display: 0.1 Secs
R251 [Aux Stop Delay]
Sets the delay time before turning off the next running auxiliary motor once the output frequency has
dropped below the value set in [Aux X Stop Freq].
Values Default: 3.0 Secs
Min/Max: 0.0/999.9 Secs
Display: 0.1 Secs
R252 [Aux Prog Delay]
Sets the time delay between connecting the drive controlled motor contactor and running the drive
controlled motor and starting the auxiliary motor control.
Values Default: 0.50 Secs
Min/Max: 0.00/60.00 Secs
Display: 0.01 Secs
R253 [Aux AutoSwap Tme]
Sets the total running time between automatic motor changes.
Important: Proper wiring and parameter configuration of Aux Motor Control functions are especially
important when using AutoSwap. Improper wiring or configuration could result in line power being
applied to the drive outputs. Verify system operation before connecting auxiliary motor contactor
outputs.
Values Default: 0.0 Hr
Min/Max: 0.0/999.9 Hr
Display: 0.1 Hr

Allen-Bradley PowerFlex400 Specifications

General

Brand	Allen-Bradley
Model	PowerFlex400
Category	Controller
Language	English