Lenze EVS9332xS - Manual (Page 42)

Configuration
Basic configurations
2.2.6 Angular synchronism
2−30
l
EDSVS9332S−EXT EN 2.0
2.2.6.5 Referencing
The homing function is available with the configurations 5XXX, 6XXX and 7XXX.. The drive shaft can
be positioned via the homing function. For this purpose, the drive is disconnected from the setpoint
path and follows the profile generator.
REF
REF−N−IN
REF−PHI−IN
REF−N−SET
REF−PSET
Ref−on
REF−BUSY
REF−OK Ref−mark
C0929
C0923
C0928
C0922
C0927/2
C0921
C0927/1
C0920
CTRL
C0935
C0936
C0931
C0932
C0930
C0934
C0933
Fig. 2−6 Homing function block (REF)
Homing is started via a rising edge at the digital input "REF−ON" (default setting is assigned to
terminal X5/E3); this input must be applied until the end of the homing process.
After the negative edge has occurred at the input REF−MARK (default setting is assigned to terminal
X5/E2), it is positioned to the home position. This input is intended for a reference switch. The speed
travel profile is created via a profile generator which is integrated in the REF function block. Via this,
the acceleration and deceleration times as well as the speed during the homing process can also be
set.
The home position is defined as follows:
Next zero pulse after the negative edge of the reference switch plus the home position offset
(C09334).
For position feedback via resolver, the zero position (depending on the resolver attachment to the
motor) is used instead of the zero pulse. Accordingly, the touch probe angle is used for homing via
touch probe.
The output signal "REF−BUSY" indicates with HIGH signal, whether the homing function is active.
The output signal "REF−OK" indicates with HIGH signal that homing is completed successfully. This
signal can be scanned via the output terminal X5/A4.
The setpoint outputs for position and speed of the REF function block are connected with the
corresponding setpoint inputs of the function block MCTRL (see signal flow diagram for the
configurations 5XXX, 6XXX and 7XXX). If the homing function is active (input REF−ON = HIGH), the
drive is disconnected from the setpoint path. The drive then follows the profile generator.
During the homing process the input DFSET−SET of the master frequency processing is active. This
is done through the output REF−BUSY of the REF function block. After the homing process is
completed, REF−BUSY=LOW is switched back to master frequency without jerk.
A renewed homing process requires an edge at the input REF−ON.