ABB RCNA-01 Manual de usuario descargar pdf (Pagina 218)

100

101

214 Parameter listing and descriptions

ACH550-01 User's Manual

1706 OVERRIDE DIR -6…7

Selects the source of the override direction signal.

0 =

FORWARD – Assigns forward as the override direction.

1 =

DI1 – Defines 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…DI6 – Defines digital input DI2…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.

• Activating the digital input selects the forward direction.

• De-activating the digital input selects the reverse direction.

-2…-6 =

DI2(INV)…DI6(INV) – Defines an inverted digital input DI2…DI6

as the override direction signal.

•See

DI1(INV) above.

1707 OVERRIDE REF 1=CONSTANT, 2=PID

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 parameter 1703

OVERRIDE SPEED.

2 =

PID – The reference is taken from the PID output, see group 40

PROCESS PID SET 1.

• Note: The following conditions must be met when using PID in the

override mode:

• PID1 set point (parameter 4010

SET POINT SEL) can be either A1, A2

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

FORWARD) or 7 (REVERSE).

Code Description Range

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ABB RCNA-01 Manual de usuario Pagina 218

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