Menu 13: Position Control - Emerson Mentor MP Advanced User's Manual

Parameter
Menu 13
structure
5.14

Menu 13: Position control

Menu 13 provides a position control system for the drive in open-loop mode and closed-loop modes (closed-loop vector and servo). The position
reference can be taken from the drive encoder, from a position feedback module or from a local reference defined in this menu. The reference
includes a relative jog function that can be used to advance or retard the position reference at a defined speed and a ratio that can scale the
reference. The feedback position can be taken from the drive encoder or from a position feedback module. As well as giving position control the
controller can provide shaft orientation within one revolution in conjunction with the drive sequencer (see Menu 6). The sample time for the position
controller is 4ms and the output is supplied to the speed or frequency reference every 4ms.
Figure 5-19 Menu 13 logic diagram
Position control reference position
Revolution
Position
counter
Drive
3.28 3.29
Encoder
Slot 1 15.04 15.05 15.06
Slot 2
16.04 16.05 16.06
Slot 3 17.04 17.05 17.06
Local
13.20 13.21 13.22
reference
Ignore local
13.24
reference turns
Position control feedback position
Revolution
Position
counter
Drive
3.28 3.29
Encoder
Slot 1 15.04 15.05 15.06
Slot 2 16.04 16.05 16.06
Slot 3
17.04 17.05 17.06
156
Keypad and
Parameter x.00
display
Relative
jog reference
13.17
Position
controller
reference
13.04
source
Δ
Position
Local
13.23 reference
disable
Position
controller
feedback
source
13.05
Δ
Position
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Parameter description Advanced parameter
format descriptions
Relative Relative
jog reverse
jog enable
13.19
13.18
x(-1)
Position
reference
invert
13.06
Ratio
+
13.07
13.08
x(-1)
Position
13.16
error reset
_
Orientation
position
reference
Serial comms
protocol
+
∫
+
_
∫
+
Limited to
± / 1
rev
2
13.13
Mentor MP Advanced User Guide
Issue Number: 1
Performance