ABB ACS280 Firmware Manual page 133

No. Name/Value
20.21 Direction
Direction command =
Forward
20.21
Par.
Direction
= Forward
Forward
20.21
Par.
Direction
= Reverse
Reverse
20.21
Par. Forward, but
Direction
=
• If reference from
Request
• If reference from the
Request
Forward
Reverse
Description
Reference direction lock. Defines the direction of the
drive rather than the sign of the reference, except in
some cases.
In the table the actual drive rotation is shown as a
function of parameter
command (from parameter
20.06 Ext2 commands
Constant, Motor
potentiometer, PID,
Safe speed, Last,
Jogging or Panel
reference, reference
used as is.
network, reference
used as is.
In external control the direction is selected by a
direction command (parameter
20.06 Ext2 commands
or
If the reference comes from Constant (constant
speeds/frequencies), Motor potentiometer, PID, Fail,
Last (last speed reference), Jogging (jogging speed)
or Panel reference, the reference is used as is.
If the reference comes from a fieldbus:
• if the direction command is forward, the reference
is used as is
• if the direction command is reverse, the reference
is multiplied by -1.
Motor rotates forward regardless of the sign of the
external reference. (Negative reference values are
replaced by zero. Positive reference values are used as
is.)
Motor rotates reverse regardless of the sign of the
external reference. (Negative reference values are
replaced by zero. Positive reference values are
multiplied by -1.)
20.21 Direction
20.01 Ext2 commands
).
Direction command =
Reverse
Forward
Reverse
Reverse, but
• If reference from
Constant, PID or Jogging
reference, reference used
as is.
• If reference from the
network, Panel, Analog
input, Motor
potentiometer, Safe
speed or Last reference,
reference multiplied by -1.
20.01 Ext2 commands
).
Parameters 133
Default
FbEq 16
Request
and Direction
or
Direction command not
defined
Forward
Reverse
Forward
0
1
2