ABB ACS880 Firmware Manual page 462

462 Parameters
No. Name/Value
90.53 Load gear
numerator
-2147483648 ...
2147483647
90.54 Load gear
denominator
-2147483648 ...
2147483647
90.55 Load feedback fault
Fault
Warning
90.56 Load position offset
-2147483648 ...
2147483647
90.57 Load position
resolution
0...31
90.58 Pos counter init
value int
-2147483648 ...
2147483647
90.59 Pos counter init
value int source
Zero
Pos counter init
value int
Other
90.60 Pos counter error
and boot action
Request re-
initialization
Description
Parameters 90.53 and 90.54
the load (driven equipment) speed and the encoder
feedback selected by parameter
selection. The gear can be used to correct a difference
between the load and encoder speeds for example if the
encoder is not mounted directly on the rotated machinery.
90.53 Load gear numerator
90.54 Load gear denominator
Load gear numerator.
See parameter 90.53 Load gear
Load gear denominator.
Selects how the drive reacts to loss of load feedback.
Drive trips on a 73A1 Load feedback
Drive generates an A798 Encoder option comm loss
A7B1 Load speed feedback
operation using estimated feedbacks.
Defines a load-side position offset. The resolution is
determined by parameter
Load-side position offset.
Defines how many bits are used for load position count
within one revolution. For example, with the setting of 16,
the position value is multiplied by 65536 for display in
parameter 90.04 Load position.
Load position resolution.
Defines an initial position (or distance) for the position
counter (as an integer value) when parameter
counter init value int source
int.
See also section Position counter
Initial integer value for position counter.
Selects the source of the initial position integer 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.
0.
Parameter 90.58 Pos counter init value
Source selection (see Terms and abbreviations
page 152).
Selects how the position counter reacts to loss of load
feedback.
Bit 4 of 90.35 Pos counter status
of position counter is recommended.
define a gear function between
90.51 Load feedback
Load speed
=
Encoder speed
numerator.
fault.
warning and continues
90.57 Load position resolution.
90.59 Pos
is set to Pos counter init value
(page 92).
int.
on
is cleared. Reinitialization
Def/FbEq16
1
-
1
-
Fault
0
or 1
0 rev
-
16
-
0
-
Pos counter
init value int
0
1
-
Request re-
initialization
0