150 Parameters
20.21 Direction 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 20.21 Direction and Direction command
(from parameter 20.01 Ext2 commands or 20.06 Ext2
commands).
Request
Request In external control the direction is selected by a direction
command (parameter 20.01 Ext2 commands or 20.06
Ext2 commands).
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.
0
Forward 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.)
1
Reverse 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.)
2
No. Name/Value Description Default
FbEq 16
Direction command =
Forward
Direction command =
Reverse
Direction command not
defined
Par. 20.21
Direction =
Forward
Forward Forward Forward
Par. 20.21
Direction =
Reverse
Reverse Reverse Reverse
Par. 20.21
Direction =
Request
Forward, but
• If reference from
Constant, Motor
potentiometer, PID, Fail,
Last, Jogging or Panel
reference, reference
used as is.
• If reference from the
network, reference used
as is.
Reverse, but
• If reference from
Constant, Motor
potentiometer, PID, Fail,
Last, Jogging or Panel
reference, reference
used as is.
• If reference from the
network, reference
multiplied by -1.
Forward
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