Control Techniques Mentor MP User Manual

Parameter
structure
Keypad and
display
Parameter x.00
Parameter description
format
Advanced parameter
descriptions
Serial comms
protocol
Performance
Menu 13
Mentor MP Advanced User Guide 177
Issue Number: 4 www.controltechniques.com
When this parameter is set to one and the position controller mode (Pr 13.10) is 1 or 2, the position error integrator is loaded with the absolute
position error defined by the position sources when the position controller is disabled. (The position controller is disabled under the following
conditions: when the drive is in the inhibit, ready or tripped states; either the reference or feedback position sources from Solutions Modules are
invalid; the position feedback is not correctly initialized (Pr 3.48 = 0); the position control mode (Pr 13.10) is changed; this parameter (Pr 13.11) is
changed; or the position error reset (Pr 13.16) is set to one.) Therefore when this parameter is one the position controller operates on the absolute
position from the reference and feedback. If the feedback device is not absolute then the absolute position is the change of position since the drive
was powered-up.
When this parameter is zero or the position control mode is not 1 or 2 the error integrator is loaded with zero when the position controller is disabled
therefore the position controller operates on the relative position changes of the reference and feedback from the point when the position controller is
re-enabled.
It should be noted that the value of this parameter does not affect the operation of the marker reset for any position source. If the marker position
reset disable (Pr 3.31 for the drive encoder, or similar for Solutions Modules) is zero, the position controller takes the position source including the
effect of the marker. When a marker event occurs the position and fine position are reset to zero, but the turns are not affected. If the marker position
reset disable is one then the marker events have no effect on the position source used by the position controller.
This parameter limits the velocity correction applied by the position controller. This value is also used as the reference during orientation.
Pr 13.13 defines the position as a 1/2
16
of a revolution for orientation. Pr 13.14 defines the position acceptance window either side of the position
reference for orientation in 1/2
16
of a revolution. When the position is within the window defined by Pr 13.14, Pr 13.15 indicates orientation is
complete.
13.11 Absolute mode enable
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Default 0
Update rate Background read
13.12 Position controller speed clamp
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 to 250
Default 150
Update rate Background read
13.13 Orientation position reference
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 to 65,535
Default 0
Update rate Background read
13.14 Orientation acceptance window
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
111
Range 0 to 4,096
Default 256
Update rate Background read
13.15 Orientation position complete
Coding
Bit SP FI DE Txt VM DP ND RA NC NV PT US RW BU PS
1111
Update rate 4 ms write

Control Techniques Mentor MP Specifications

General

Brand	Control Techniques
Model	Mentor MP
Category	DC Drives
Language	English