ABB ACS880 Firmware Manual page 463

No. Name/Value
Continue from
previous value
90.61 Gear numerator
-2147483648 ...
2147483647
90.62 Gear denominator
-2147483648 ...
2147483647
90.63 Feed constant
numerator
-2147483648 ...
2147483647
90.64 Feed constant
denominator
-2147483648 ...
2147483647
90.65 Pos counter init
value
-2147483.648 ...
2147483.647
90.66 Pos counter init
value source
Zero
Pos counter init
value
Other
Description
Position counting resumes from the previous value over a
loss of load feedback or control unit reboot. Bit 4 of
Pos counter status is not cleared, but bit 6 is set to indicate
that an error has occurred.
WARNING! If load feedback is lost when the drive is
in stopped state or not powered, the counter is not
updated even if the load moves.
Parameters 90.61 and 90.62
the motor and load speeds.
90.61 Gear numerator
90.62 Gear denominator
Gear numerator (motor-side).
See parameter 90.61 Gear
Gear denominator (load-side).
Parameters 90.63 and 90.64
position calculation:
90.63 Feed constant numerator
90.64 Feed constant denominator
The feed constant converts rotational motion into translatory
motion. The feed constant is the distance the load moves
during one turn of the motor shaft.
The translatory load position is shown by parameter
Load position scaled.
Note: Load position is updated only after the new position
input data is received.
Feed constant numerator.
See parameter 90.63 Feed constant
Feed constant denominator.
Defines an initial position (or distance) for the position
counter (as a decimal number) when parameter
counter init value source
See also section Position counter
The number of decimal places is defined by parameter
90.38 Pos counter decimals.
Initial value for position counter.
Selects the source of the initial position value. When the
source selected by 90.67 Pos counter init cmd source
activates, the value selected in this parameter is assumed to
be the position of the load (in decimal format).
0.
Parameter 90.65 Pos counter init
Source selection (see Terms and abbreviations
page 152).
define a gear function between
Motor speed
=
Load speed
numerator.
define the feed constant for the
numerator.
90.66 Pos
is set to Pos counter init
(page 92).
value.
on
Parameters 463
Def/FbEq16
1
90.35
1
-
1
-
1
90.05
-
1
-
0.000
value.
-
Pos counter
init value
0
1
-