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9.18.2.1
Reference with Internal Limit
If there are no externally mounted limit stops (
„MLPN“
= 0
and
„MLPP“
= 0), the reference will be completed by the
internal mechanical limits of ELAX® itself.
ASCII command „
MLPN
“
= Mechanical Limit Position Negative
ASCII command „
MLPP
“
= Mechanical Limit Position Positive
Negative Reference (DRHR = 1)
The slide drives in negative direction until the mechanical
limit is recognized. This position will then be set to <-
1mm> as per definition. In order to complete the
reference, the slide moves then to the absolute position 0.
ASCII command „
DRHR
“
= Direction REF
Positive Reference (DRHR = 0)
The slide drives in positive direction until the mechanical
limit is recognized. If the calibration of the internal
mechanical limit was completed (MLC, Mechanical Limit
Calibration)positively, the current position is set to the
value
“DMLPP
“.
If no calibration of the internal mechanical
limit was completed positively
(„DMLPP“ = 0)
,the current
position is set to <stroke ELAX + 1mm> as per definition.
In
order to complete the reference, the slide moves then to
the absolute position <stroke ELAX + 1mm>.
9.18.2.2
Reference with External Limit
If there are externally mounted limit stops (
MLPN
≠ 0
or
MLPP
≠ 0
),
the reference (REF) will be completed to one of
the externally mounted limit stops.
ASCII command „
MLPN
”
= Mechanical Limit Position Negative
ASCII command „
MLPP
”
= Mechanical Limit Position Positive
Negative Reference
The slide drives in negative direction until the mechanical
limit is recognized. This position will then be set to the
value of
„MLPN“
. In order to complete the reference, the
slide drives to the absolute position <MLPN +1mm>.
Positive Reference
The slide drives in positive direction until the mechanical
limit is recognized. This position will then be set to the
value of
„MLPP“.
In order to complete the reference, the
slide drives to the absolute position <MLPP - 1mm>.
Important Note:
The position of an externally mounted mechanical limit has
to be accurate. If the entered position of the externally
mounted limit stop is wrong, the alignment of the coils to
the magnets cannot be completed and the motor won
’t be
capable to drive. If the ELAX® slide is driven to the internal
negative limit position, the slide is positioned at <-1mm>
as per definition. The position of an externally mounted
limit stop has to be indicated in relation to <-1mm>
