Eaton SLX9000 - PID Reference Parameters

SLX9000 Adjustable Frequency Drives User Manual
MN04003020E
For more information visit: www.eaton.com 9-33
January 2009
PID Reference Parameters
2.9.1 PID activation ID163
With this parameter you can activate or deactivate the PID controller or activate the
pump and fan control parameters.
0 PID controller deactivated
1 PID controller activated
2 Pump and fan control activated. Parameter group P2.10 becomes
visible.
2.9.2 PID reference ID332
Defines which frequency reference source is selected for the PID controller. Default
value is 2.
0 AI1 reference
1 AI2 reference
2 PID reference from the Keypad control page (Group K3, parameter R3.5)
3 Reference from the fieldbus (FBProcessDataIN1)
2.9.3 Actual value input ID334
0 AI1
1 AI2
2 Fieldbus (Actual value 1: FBProcessDataIN2; Actual value 2:
FBProcessDataIN3)
3 Motor torque
4 Motor speed
5 Motor current
6 Motor power
2.9.4 PID controller gain ID118
This parameter defines the gain of the PID controller. If the value of the parameter is
set to 100% a change of 10% in the error value causes the controller output to change
by 10%.
If the parameter value is set to 0 the PID controller operates as ID-controller.
See examples below.
2.9.5 PID controller I-time ID119
This parameter defines the integration time of the PID controller. If this parameter is
set to 1.00 second, a change of 10% in the error value causes the controller output to
change by 10.00%/s. If the parameter value is set to 0.00 s, the PID controller will
operate as PD-controller. See examples below.