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Code Description
1706 OVERRIDE DIR
Selects the source of the override direction signal.
0 =
FORWARD
1 =
1 – Defines digital input
DI
• De-activating the digital input selects the forward direction.
• Activating the digital input selects the reverse direction.
2...6 =
2...
DI
signal.
• See
1 above.
DI
7 =
REVERSE
-1 =
1(
) – Defines an inverted digital input
DI
INV
direction signal.
• Activating the digital input selects the forward direction.
• De-activating the digital input selects the reverse direction.
-2...-6 =
2(
DI
as the override direction signal.
• See
1(
DI
INV
1707 OVERRIDE REF
Selects the source of the override reference.
1 =
CONSTANT
The frequency value is defined by parameter 1702
and the speed value by parameter 1703
2 =
– The reference is taken from the PID output, see group 40
PID
PROCESS PID SET 1.
• Note: The following conditions must be met when using PID in the
override mode:
• PID1 set point (parameter 4010
or
INTERNAL
• PID1 parameter set 1 must be active (parameter 4027
=
SET
SET
• Override direction (parameter 1706
0 (
FORWARD
220
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– Assigns forward as the override direction.
1 as the override direction signal.
DI
6 – Defines digital input
DI
– Assigns reverse as the override direction.
)...
6(
) – Defines an inverted digital input
INV
DI
INV
) above.
– Selects a preset frequency or speed for the override.
.
1).
) or 7 (
).
REVERSE
ACH550-01 User's Manual
Range
-6...7
2...
6 as the override direction
DI
DI
1 as the override
DI
1=CONSTANT, 2=PID
OVERRIDE SPEED
) can be either
SET POINT SEL
OVERRIDE DIR
Parameter listing and descriptions
2...
6
DI
DI
OVERRIDE FREQ
.
1,
2
A
A
1
PID
PARAM
) can be either
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