Parameters 193
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 Ext1 commands or 20.06 Ext2 commands).
Request
Request In external control the direction is selected by a direction
command (parameter 20.01 Ext1 commands or 20.06 Ext2
commands).
If the reference comes from Constant (constant
speeds/frequencies), Motor potentiometer, PID, Speed ref
safe, Last speed reference, 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
20.22 Enable to rotate Setting this parameter to 0 stops motor rotating but does not
affect any other conditions for rotating. Setting the parameter
back to 1 starts motor rotating again.
This parameter can be used for example with a signal from
some external equipment to prevent the motor rotating before
the equipment is ready.
When this parameter is 0 (rotating of the motor is disabled),
bit 13 of parameter 06.16 Drive status word 1 is set to 0.
Selected
Not selected 0 (always off). 0
Selected 1 (always on). 1
DI1 Digital input DI1 (10.02 DI delayed status, bit 0). 2
No. Name/Value Description Def/FbEq16
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,
Las, Jogging or Panel
reference, reference
used as is.
• If reference from the
network, reference
multiplied by -1.
Forward
ACS580 FW.book Page 193 Wednesday, September 21, 2016 9:48 PM
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