Functions, monitoring and protective functions
9.4 Extended functions
Enclosed Drives
Operating Instructions, 12/2018, A5E36652151A
687
Parameters
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p1528
CI: Torque limit, upper/motoring, scaling
•
p1529
CI: Torque limit, lower/regenerative scaling
•
p1545
BI: Activates travel to fixed stop
•
r2526
CO/BO: LR status word
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p2622
EPOS traversing block, order parameter
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p2634
EPOS Fixed stop maximum permissible following error
•
p2635
EPOS Fixed stop monitoring window
•
p2637
BI: EPOS Fixed stop reached
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p2638
BI: EPOS Fixed stop outside monitoring window
•
r2683
CO/BO: EPOS status word 1
•
r2686
CO: EPOS Torque limit effective
9.4.7.9
Direct setpoint specification (MDI)
Description
The direct setpoint input function allows for positioning (absolute, relative) and setup
(endless position-controlled) by means of direct setpoint input (e.g. via the PLC using
process data).
During traversing, the motion parameters can also be influenced (on-the-fly setpoint
acceptance) and an on-the-fly change can be undertaken between the Setup and Positioning
modes.
The "direct setpoint input" mode (MDI) can also be used if the axis is not referenced in the
"setup" or "relative positioning" modes, which means that "flying referencing" (see the
separate section), flying synchronization, and post-referencing are possible.
The direct setpoint input function is activated by p2647 = 1. A distinction is made between
two modes: positioning mode (p2653 = 0) and setup mode (p2653 = 1).
●
In the "positioning" mode, the parameters (position, velocity, acceleration and
deceleration) can be used to carry out absolute (p2648 = 1) or relative (p2648 = 0)
positioning with the parameter p2690 (fixed setpoint position).
●
In the setting-up mode, using parameters (velocity, acceleration and deceleration)
"endless" closed-loop position control behavior can be carried-out.
It is possible to make a flying changeover between the two modes.
If continuous acceptance (p2649 = 1) is activated, changes to the MDI parameters are
accepted immediately. Otherwise the values are only accepted when there is a positive edge
at binector input p2650 (setpoint acceptance edge).
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