ABB ACS580 Firmware Manual page 185

No. Name/Value
Supervision 3
Other [bit]
20.21 Direction
Direction command =
Forward
Par. 20.21
Direction = Forward
Forward
Par. 20.21
Direction = Reverse
Reverse
Par. 20.21 Forward, but
Direction =
• If reference from
Request
• If reference from the
Request
Forward
Reverse
20.22 Enable to rotate
Not selected
Description
Bit 2 of 32.01 Supervision status
Source selection (see
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
parameter 20.01 Ext1 commands
Constant, Motor
potentiometer, PID, Fail,
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
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.
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.)
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
0 (always off).
(see page 234).
Terms and abbreviations
and Direction command (from
or 20.06 Ext2
Direction command =
Reverse
Forward
Reverse
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.
20.01 Ext1 commands
06.16 Drive status word 1
Parameters 181
Def/FbEq16
26
on page 136). -
Request
commands).
Direction command not
defined
Forward
Reverse
Forward
0
or 20.06 Ext2
1
2
Selected
is set to 0.
0