Technical Manual PD4-E-M (EtherCAT)
6 Operating modes
Note
The target is absolute and, thus, independent of how often it was sent per cycle.
Note
The limit switches and, thus, the tolerance bands are active in this mode. For further information on
the limit switches, see Limitation of the range of motion.
Activation
To activate the mode, the value "8" must be set in object 6060
h
(Modes Of Operation) (see "CiA 402
Controlword
In this mode, the bits of controlword 6040
have no special function.
Statusword
The following bits in object 6041
(statusword) have a special function:
Bit
Value
Description
8
0
The controller is not in sync with the fieldbus
8
1
The controller is in sync with the fieldbus
10
0
Reserved
10
1
Reserved
12
0
Controller does not follow the target; the preset of 607A
(Target Position) is
ignored
12
1
Controller follows the target; object 607A
h
(Target Position) is used as the
input for position control.
13
0
No following error
13
1
Following error
Bit 11: Limit exceeded: The demand position is above or below the limit values set in 607D
.
6.7.2 Object entries
The following objects are necessary for controlling this mode:
•
(Target Position): This object must be written cyclically with the position set value.
•
(Position Range Limit): This object contains the preset for an overrun or underrun of the
position specification.
•
(Software Position Limit): This object defines the limitations within which the position
specification (607A
h
) must be located.
•
h
(Following Error Window): This object specifies a tolerance corridor in both the positive and
negative direction from the set specification. If the actual position is outside of this corridor for longer
than the specified time (6066
h
), a following error is reported.
•
h
(Following Error Time Out): This object specifies the time range in milliseconds. If the actual
position is outside of the position corridor (6065
h
) for longer than this time range, a following error is
triggered.
•
h
(Quick-Stop Deceleration): This object contains the braking deceleration for the case that a
quick-stop is triggered.
Version: 1.0.1 / FIR-v1748
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