Drive control and features
73
t
1
: Rising edge of encoder digital input DI1 signal (proximity switch signal) is
detected when the load position should be 90°. The actual position of the encoder is
120° (stored to signal 4.03 PROBE1 POS MEAS).
Distance between the load position and the actual position is 90° - 120° = -30°
(= 4.05 CYCLIC POS ERR).
Master reference correction
The purpose of the master reference correction is to correct the difference between
62.16 PROBE1 POS and the synchron reference position 4.16 SYNC REF
GEARED at the moment when the triggering conditions are met. If there is a
deviation, a corresponding correction is carried out on the drive synchron reference
position.
Note: In master reference correction, the follower must always be in synchron
control mode. If the follower is not used in synchron control mode, adjusting the drive
synchron reference (4.16 SYNC REF GEARED) will not affect the operation of the
drive, and the correction cannot be carried out properly.
Example:
Parameter Setting Information
60.05 POS UNIT (1) Degree All position values are in degrees
60.02 POS AXIS MODE (1) Rollover Positioning is between 0 and 1 revolutions, ie, after
360°, the position calculation starts from 0° again.
68.02 SYNC GEAR MUL Same as for 68.03
SYNC GEAR DIV
Synchron gear ratio is 1.
62.14 CYCLIC CORR
MODE
(2) Cor Mas Ref Master (motor) reference correction
62.15 TRIG PROBE1 (1) ENC1 DI1 _– Rising edge of encoder 1 digital input DI1.
Source of the master (motor) position reference
latching command (proximity switch signal source)
62.16 PROBE1 POS 60° Reference position for the master (motor) reference
position probe
t
t
t
t
90°
120°
t
1
65.03 POS START 1
1.01 SPEED ACT
1.12 POS ACT
Encoder DI1
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