Parker EME
Setting up Compax3
192-120103 N13 C3I20T11 / C3I32T11 December 2010
115
Machine zero modes overview
Selection of the machine zero modes (MN-M)
Machine home switch
on X12/14:
MN-M 3 ... 14, 19 ... 30
Without motor reference point
MN-M 19 ...30
without direction reversal switches:
MN-M 19, 20
(see on page
MN-M 21, 22
(see on page 118)
with reversal switches:
MN-M 23, 24, 25, 26
(see on page 119),
MN-M 27, 28, 29, 30
(see on page 119)
With motor reference point
MN-M 3 ... 14
(possibly an
initiator
adjustment
(see on page
128) is required)
without direction reversal switches:
MN-M 3, 4
(see on page
MN-M 5, 6
(see on page 121)
with reversal switches:
MN-M 7, 8, 9, 10
(see on page 122),
MN-M 11,12,13, 14
(see on page 122)
Without machine zero
initiator on X12/14:
MN-M 1, 2, 17, 18, 33 ..
35, 128, 129, 130 ... 133
Without motor reference point
MN-M 17, 18, 35, 128, 129
MN-M 35: on the actual position
(see on page 123)
MN-M 128, 129: by moving to block
(see on page 123)
With limit switch as machine zero:
MN-M 17, 18
(see on page
Only motor reference:
MN-M 33, 34
(see on page 125),
MN-M
130, 131
(see on page 126)
With limit switch as machine zero:
MN-M 1, 2
(see on page
MN-M 132, 133
(see on page 127)
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 Stromschwelle” 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.
