Rockwell Automation SP600 AC Drive User Manual Version 1.0 - Manual (Page 160)

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
See also: 80, 125-138
Figure 12.13 – PI Configuration (124)
0 0 0 0 0 0 x x x x x x x x x x
10 0 1 2 3 4 5 6 7 8 9 11 12 13 14 15
1 =Enabled
0 =Disabled
x =Reserved
Bit #
Factory Default Bit Values
Excl Mode In
ver
t Error
Preload Mode Ramp Ref Zero Clamp Feedbak Sqr
t
Nibble 1 Nibble 2 Nibble 3 Nibble 4