SLX9000 Adjustable Frequency Drives User Manual
9-46 For more information visit: www.eaton.com
MN04003020E
January 2009
Description of Pump and Fan Control Parameters
Figure 9-34: Autochange Applied to Auxiliary Drives Only
2.10.1 Number of auxiliary drives ID1001
With this parameter the number of auxiliary drives in use will be defined. The
functions controlling the auxiliary drives (parameters 2.10.4 to 2.10.7) can be
programmed to relay outputs.
2.10.2 Start delay of auxiliary drives ID1010
The frequency of the drive controlled by the drive must remain above the maximum
frequency for the time defined with this parameter before the auxiliary drive is
started. The delay defined applies to all auxiliary drives. This prevents unnecessary
starts caused by momentary start limit exceedings.
2.10.3 Stop delay of auxiliary drives ID1011
The frequency of the drive controlled by the drive must remain below the minimum
frequency for the time defined with this parameter before the drive is stopped. The
delay defined applies to all auxiliary drives. This prevents unnecessary stops caused
by momentary falls below the stop limit.
2.10.4 Automatic changing between drives ID1027
0 Not used
1 Autochange with aux pumps
This parameter allows you to invert the error value of the PID controller (and thus the
operation of the PID controller).
M
Motor Aux. 1
M
Motor Aux. 2
M
Drive