ABB ACSM1 - Page 229

Parameters and firmware blocks
229
(28) ENC2 DI2=0 z Encoder 2 position First zero pulse when DI2 = 0
(29) PROBE1 SW Encoder 1 position The trigger signal is selected by
parameter 62.22 TRIG PROBE1
SW.
(30) PROBE2 SW Encoder 1 position The trigger signal is selected by
parameter 62.23 TRIG PROBE2
SW.
62.16 PROBE1 POS FW block: CYCLIC CORRECTION (see above)
Defines the reference position for position probe 1.
The unit depends on parameter 60.05 POS UNIT selection.
-32768…32768 Reference position for position probe 1.
62.17 TRIG PROBE2 FW block: CYCLIC CORRECTION (see above)
Defines the position data source and triggering condition used for probe 2 latching. When the
triggering condition is fulfilled, the position received from the selected data source is set as probe 2
position.
In case the triggering condition is dependent on the zero pulse, the probe is latched upon the rising
edge of the zero pulse. The source of the zero pulse is defined by parameter 62.26 Z-PULSE
SOURCE 2.
For selections, see parameter 62.15 TRIG PROBE1.
62.18 PROBE2 POS FW block: CYCLIC CORRECTION (see above)
Defines the reference position for position probe 2.
The unit depends on parameter 60.05 POS UNIT selection.
-32768…32768 Reference position for position probe 2.
62.19 MAX CORRECTION FW block: CYCLIC CORRECTION (see above)
Defines the maximum absolute value for cyclic correction. Example: If maximum value is set to 50
revolutions and the requested cyclic correction is 60 revolution, no correction is made.
The unit depends on parameter 60.05 POS UNIT selection.
0…32768 Maximum absolute value for cyclic correction.
62.20 POS ACT OFFSET FW block: HOMING (see above)
Offsets all the position values used by the position system, effectively correcting the position and
revolution count signal received from the encoder. For example, this parameter can be used if a non-
zero position signal received from the encoder needs to be defined as the zero position for the
application.
For example, if this parameter is set to a value of -100, the absolute position of 100 revolutions as
measured by the encoder is interpreted as the zero position.
Notes:
• The offset takes effect upon the next power-up or when an encoder reconfiguration command is
given using parameter 90.10 ENC PAR REFRESH.
• The offset will not be visible through any actual signal or other parameter.
-32768…32768 Offset for actual position value.