ABB ACSM1 Manual page 73

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