ACS510 User’s Manual
91
Start-Up
1704
OVERRIDE PASS CODE
Entering the correct pass code unlocks parameter 1705 for one change.
• Enter the pass code always before changing the value of the parameter 1705.
• See parameter 1705 below.
• The pass code is 358.
• The entry reverts back to zero automatically.
1705
OVERRIDE ENABLE
Selects whether the override is enabled or disabled..
0 = OFF - Override disabled.
1 = ON - Override enabled.
2 = LOAD - Loads a previously saved Override Para set to be the active Para of the drive.
• When enabled, the drive stores the values of all parameters into an override parameter set (see
parameter 9902) and the parameters in Group 17 will be write protected (except parameter 1704). To
change the other parameters in the Group 17, override has to be disabled.
1706
OVERRIDE DIR
Selects the source of the override direction signal.
0 =
FORWARD
-
Assigns foward as the override direction.
1 =
DI1
-
Defines digital input DI1 as the override direction signal.
• Activating the digital input selects the forward direction.
• De-activating the digital input selects the reverse direction.
2...6 =
DI2...DI6
-
Defines digital input DI1... DI6 as the override direction signal.
• See DI1 above.
7 =
REVERSE
-
Assigns reverse as the override direction.
-1 =
DI1( INV )
-
Defines an inverted digital input DI1 as the override direction signal.
• De-activating the digital input selects the forward direction.
• Activating the digital input selects the reverse direction.
-2...-6 =
DI2 ( INV )
...DI6 ( INV )
-
Defines an inverted digital input DI1... DI6 as the override direction signal.
• See DI1(INV) above.
1707
OVERRIDE REF
Selects the source of the override reference.
1 =
CONSTANT
-
Selects a preset frequency or speed for the override. The frequency value is defined by parameter
1702
OVERRIDE FREQ
and the speed value by paremeter 1703
OVERRIDE SPEED
.
2 =
PID
-
The reference is taken from the PID output, see group 40
PROCESS PID SET1
.
•
Note
：
The following conditions must be met when using PID in the override mode:
Code Description
• PID1 set point
(
parameter 4010
SET POINT SEL
)
can be either
A1
,
A2
or
INTERNAL
.
• PID1 parameter set 1 must be active
(
parameter 4027
PID 1 PARAM SET
=
SET 1
)
.
• Override direction
(
parameter 1706
OVERRIDE DIR
)
can be either 0 =
FORWARD
or 7 =
REVERSE
.
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