Rockwell Automation SP600 AC Drive User Manual Version 1.0 - Manual (Page 162)

12-32 SP600 AC Drive User Manual
The functions below can be controlled via digital input selection
functions (361-366):
Bit 0 - PI Enable
• Enables/disables the operation of the PI loop.
Bit 1 - PI Hold
• Enabled = The integrator for the outer control loop is held at
the current level; that is, it will not increase.
• Disabled = The integrator for the outer PI control loop is
allowed to increase.
Bit 2 - PI Reset
• Enabled = The integrator for the outer PI control loop is reset
to zero.
• Disabled = The integrator for the outer PI control loop
integrates normally.
Figure 12.14 – PI Control (125)
0 0 x 0 x x 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
PI Enable PI Hold PI Reset
Nibble 1 Nibble 2 Nibble 3 Nibble 4
Figure 12.15 – PI Regulator
PI PosLmt
PI NegLmt
PI Kp
PI Ref
PI FB
+
_
PI Ki
PI_Status
Hold
(125)
+
+
PI Output
In Limit
(132)
(131)
(130)
(126)
(128)
(129)