Configuration
Basic configurations
8.2.5 Phase synchronism
8-26
L
EDSVS9332S-D11 EN 3.0
Tar g et si t u at i o n
SlaveMaster
Δφ=0
n
n
Δφ = phase offset
n = Speed
Fig. 8-4 Target situation when processing the zero pulse (Δφ=0)
Conditions for reaching the target situation:
z The function must be activated via code C0534 (function block DFSET)
z The input DFSET-0-PULSE must be triggered with a HIGH signal when the zero pulse is
evaluated once (function block DFSET)
z The phase control must be activated (function block MCTRL)
z The zero pulses must be connected to the SubD connectors X9 and X8 (X8 when using an
encoder)
Zero pulse at the setp oint
The set rotor position is specified via the setpoint zero pulse (i.e. when the drive system is running).
It is only synchronised if one setpoint zero pulse and actual zero pulse have occurred before, i.e. not
before the second zero pulse.
Control mode:
The phase offset is compensated via acceleration or deceleration. The direction (acceleration or
deceleration)depends on the detected phase offset. If the rotor is leading in the range from 0° to 180°,
the drive is synchronised by deceleration. If the rotor is lagging in the range from 0° to 180°,thedrive
is synchronised by acceleration.
Different modes of the zero pulse synchro nisation
The different modes of the zero pulse synchronisation can be selected via the subcodes of C0534.
The following table assigns the corresponding mode of the zero pulse synchronisation to the
subcodes:
Selection of
C0534
Mode of the zero pulse synchronisation
1 permanent zero pulse synchronisation as described under ”zero pulse in case of the setpoint” (see page 8-26)
2 as in selection 1; but DFSET-0-PULSE must be triggered with HIGH signal
10 one-time zero pulse synchronisation; control mode as described under ”zero pulse in case of the setpoint” (see page 8-26)
11 one-time zero pulse synchronisation; the drive is always synchronised by clockwise rotation
12 one-time zero pulse synchronisation; the drive is always synchronised by counter-clockwise rotation
13 one-time evaluation of the setpoint and actual zero pulse; the synchronisation is not defined
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