ABB ACSM1 Firmware Manual page 62

62
produce some drift on the load side. In order to compensate this drift, actual position
correction is used. A proximity switch is located on the load side at 90°.
Encoder DI1
Parameter
60.05 POS UNIT
62.14 CYCLIC CORR
MODE
62.15 TRIG PROBE1
60.02 POS AXIS MODE (1) ROLLOVER
62.16 PROBE1 POS
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
corrected according to
dynamic limiter settings.
Drive control and features
ENCODER MOTOR GEARBOX
M
3~
Setting
(1) DEGREE
(1) COR ACT POS
(1) ENC1 DI1 _-
90°
65.03 POS START 1
Encoder DI1
1.01 SPEED ACT
1.12 POS ACT
120°
90°
4.03 PROBE1 POS
ERR). Actual position of the encoder,
4.05 CYCLIC POS ERR
LOAD
PROXIMITY SWITCH
90°
Information
All position values are in degrees
Actual position correction
Rising edge of encoder 1 digital input DI1.
Source of the actual position latching command
(proximity switch signal source)
Positioning is between 0 and 1 revolutions, i.e. after
360°, the position calculation starts from 0° again.
Reference position for the actual position probe
t
1
MEAS).
using positioning parameter and
t
t
t
t
1.12 POS ACT, is