User Manual Version 1.0 Owner manual

12-30

SP600 AC Drive User Manual

Selects specific features of the PI regulator. See Appendix D.

Important: Parameters in the Process PI Group are used to

enable and tune the PI Loop. To allow the PI Loop to

control drive operation, parameter 80 (Speed Mode)

must be set to 2 (Process PI).

Bit 0 - Excl Mode (Exclusive Mode)

• Enabled = Selects speed regulation. The PI output can be

used as the total speed reference command.

• Disabled = Selects trim regulation. The PI output is summed

with Speed Ref A to generate the total speed command.

Bit 1 - Invert Error

• Enables/disables the option to invert the sign of the PI error

signal. Enabling this feature creates a decrease in output for

an increasing error and an increase in output for a

decreasing error.

Bit 2 - Preload Mode

• Enabled = Initializes the PI integrator to the commanded

speed while the PI is disabled.

• Disabled = The PI integrator is loaded with the PI Preload

(133) while the PI is disabled.

Bit 3 - Ramp Ref

• Enables/disables ramping the PI reference from the PI

Feedback to the PI Reference. This is used to preload the PI

reference with the actual PI feedback signal at time of

enable. This will result in a smooth ramping of the PI output.

The ramp time used is set by the active ramps (parameters

140-143).

124 PI Configuration

Range: See figure 12.13

Default: See figure 12.13

Access: 2 Path: Speed Command>Process PI