Rockwell Automation 1756-DMF30 ControlLogix Drive Module User Manual
Page 174
Publication 1756-UM522B-EN-P - February 2003
B-94 1756-DMD30 Specific Information
759
Pt-Pt Accel Time
Acceleration time (sec) to base speed, active only in point to
point mode. Acceleration to a relatively low speed may be
exponential
Units:
Default:
Min:
Max:
Type:
File:
Group:
Sec
10
0.1
6553.5
Linkable, Read-Write, Floating Point
Position Control
Point to Point
760
Pt-Pt Decel Time
Deceleration time (sec) from base speed to zero, active only in
point to point mode. Some tailing can be expected at the end
of a move as the drive comes into command position. It is left
to the user to select a time that does not place the drive in
current or torque limit. Deceleration from relatively low speed
may be exponential.
Units:
Default:
Min:
Max:
Type:
File:
Group:
Sec
10
0.1
6553.5
Linkable, Read-Write, Floating Point
Position Control
Point to Point
761
Pt-Pt Filt BW
Sets the bandwidth of a low pass filter which affects
smoothness at the start of deceleration in the point to point
mode. A high filter bandwidth will produce a more square
deceleration torque, one with a higher level of jerk. Typical
values range form 5 to 100 (rad/sec). A zero value will bypass
the filter. Tail-out is influenced mainly by parameter 768 Posit
Reg P Gain].
Units:
Default:
Min:
Max:
Type:
File:
Group:
R/S
25
0
500
Linkable, Read-Write, Floating Point
Position Control
Point to Point
762
Mtr Posit Fdbk
Displays the accumulated pulse count of the primary feedback
device as a 32 bit integer. The primary feedback device is
selected by parameter 222 [Motor Fdbk Sel].
Default:
Min:
Max:
Type:
File:
Group:
0
-2147483648
2147483648
Non-Linkable, Read Only, 32-bit Integer
Monitor, Position Control, Position Control
Metering, Interp/Direct, Point to Point
763
Act Motor Posit
Displays the accumulated motor position as a 32 bit integer. It
tracks parameter 762 [Mtr Posit Fdbk]. When the position
regulator is not enabled, this parameter is initialized to
parameter 762 [Mtr Posit Fdbk] or to the selected position
reference as determined by parmeter 740 [Position Control] bit
6.
Default:
Min:
Max:
Type:
File:
Group:
0
-2147483648
2147483648
Non-Linkable, Read Only, 32-bit Integer
Position Control, Position Control, Position
Control
Interp/Direct, Point to Point, Posit Detection
764
Posit Load Fdbk
Tracks the load position, as a 32 bit integer. When a gear box
connects the load to the motor, parameter 766 [Posit FB EGR
Mul] and parameter 767 [Posit FB EGR Div] must be set to
account for the gear ratio. Set parameter 766 [Posit FB EGR
Mul] equal to parameter 767 [Posit FB EGR Div] if the load is
directly connected to the motor.
Default:
Min:
Max:
Type:
File:
Group:
0
-2147483648
2147483648
Linkable, Read-Write, 32-bit Integer
Position Control
Interp/Direct
No.
Name
Description
Values