Setting up Compax3 C3F_T40
56 192-121102 N04 June 2008
Machine zero modes overview
Selection of the machine zero modes (MN-M)
without direction reversal switches: MN-M 19, 20 (see page 58),
MN-M 21, 22 (see page 59)
Without motor reference point
MN-M 19 ...30
with reversal switches: MN-M 23, 24, 25, 26 (see page 60), MN-
M 27, 28, 29, 3
0 (see page 61)
without direction reversal switches: MN-M 3, 4 (see page 62),
MN-M 5, 6 (see page 63)
Machine home switch
on X12/14:
MN-M 3 ... 14, 19 ... 30
With motor reference point
MN-M 3 ... 14
with reversal switches: MN-M 7, 8, 9, 10 (see page 64), M
N-M
11,12,13, 14 (see page 64)
MN-M 35: at the current Position (see page 65)
MN-M 128, 129: while moving to block (see page 65)
Without motor reference point
MN-M 17, 18, 35, 128, 129
With limit switch as machine zero: MN-M 17, 18 (see page 66)
With motor reference point Only motor reference: MN-M 33, 34 (see page 67), MN-M 130,
131 (see page 67)
Without machine zero
initiator on X12/14:
MN-M 1, 2, 17, 18, 33 ..
35, 128, 129, 130 ... 133
MN-M 1, 2, 33, 34, 130 ... 133 With limit switch as machine zero: MN-M 1, 2 (see page 68),
MN-M 132, 133 (see page 69)
Definition of terms / explanations:
Motor zero point
Zero pulse of the feedback
Motor feedback systems such as resolvers or SinCos
©
/ EnDat give
one pulse per revolution.
Some motor feedback systems of direct drives do also have a zero
pulse, which is generated once or in defined intervals.
By interpreting the motor zero point (generally in connection with the
machine zero initiator) the machine zero can be defined more
exactly.
Machine zero initiator:
For creating the mechanical reference
Has a defined position within or on the edge of the travel range.
Direction reversal
switches:
Initiators on the edge of the travel range, which are used only with a
machine zero run in order to detect the end of the travel range.
In some cases, the function ” direction reversal via Following error
threshold" is also possible, then you will need no initiator, Compax3
detects the end of the travel range via the threshold. Please observe
the respective notes.
During operation, the direction reversal switches are often used as
limit switches.
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