Parker EME
Setting up Compax3
192-120114 N5 C3I22T11 June 2008 121
MN-M 5.6: MN initiator = 1 on the negative side
The MN initiator can be positioned at any location within the travel range. The tra-
vel range is then divided into 2 contiguous ranges: one range with deactivated MN
initiator (positive part of the travel range) and one range with activated MN initiator
(negative part of the travel range).
When the MN initiator is inactive (signal = 0) the search for the machine reference
is in the negative travel direction.
MN-M 5:The 1st motor zero point with MN proximity switch = "0" is used as MN.
MN-M 6:The 1st motor zero point with MN initiator = "1" is used as MN.
6
5
5
6
1
2
1: Motor zero point
2: Logic state of the home switch
With direction reversal switches
Machine zero modes with a home switch which is activated in the middle of the
travel range and can be deactivated to both sides.
The assignment of the direction reversal switches (see page 132) can be
cha
nged.
Function Reversal via Current threshold
If no direction reversal switches are available, the reversal of direction can also be
performed during the machine zero run via the function ”direction reversal via Cur-
rent threshold"
Here the drive runs towards the mechanical limit mounted at the end of the travel
range.
When the settable Current threshold is reached, the drive is braked and changes
the travel direction.
Caution!
Wrong settings can cause hazard for man and machine.
It is therefore essential to respect the following:
Choose a low machine zero speed.
Set the machine zero acceleration to a high value, so that the drive changes di-
rection quickly, the value must, however, not be so high that the limit threshold is
already reached by accelerating or decelerating (without mechanical limitation).
The mechanical limitation as well as the load drain must be set so that they can
absorb the resulting kinetic energy.
With motor zero
point, without direc-
tion reversal swit-
ches
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