Parameter
structure
Keypad and
format
Advanced
parameter
descriptions
Serial comms
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.
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.
Mentor MP Advanced User Guide
177
Issue Number: 4
www.onxcontrol.com
13.14
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