ABB RCNA-01 User Manual download pdf (Page 192)

100

101

188 Parameter listing and descriptions

ACH550-01 User's Manual

Group 12: CONSTANT SPEEDS

This group defines a set of constant speeds. In general:

• You can program up to 7 constant speeds, ranging from

0…500 Hz or 0…30000 rpm.

• Values must be positive (no negative speed values for

constant speeds).

• Constant speed selections are ignored if:

- the process PID reference is followed, or

- the drive is in local control mode, or

- PFA (Pump and Fan Alternation) is active.

Note: Parameter 1208 CONST SPEED 7 acts also as a so-called

fault speed, which may be activated if the control signal is lost.

Refer to parameter 3001 AI<MIN FUNCTION, parameter 3002

PANEL COMM ERR and 3018 COMM FAULT FUNC.

Code Description Range

1201 CONST SPEED SEL -14…19

Defines the digital inputs used to select constant speeds. See general

comments in the introduction.

0 =

NOT SEL – Disables the constant speed function.

1 =

DI1 – Selects constant speed 1 with digital input DI1.

• Digital input activated = constant speed 1 activated.

2…6 =

DI2…DI6 – Selects constant speed 1 with digital input DI2…DI6.

• See above.

7 =

DI1,2 – Selects one of three constant speeds (1…3) using DI1 and

DI2.

• Uses two digital inputs, as defined below (0 =

DI de-activated, 1 = DI

activated):

• Can be set up as a so-called fault speed, which is activated if the

control signal is lost. Refer to parameter 3001

AI<MIN function and

parameter 3002

PANEL COMM ERR.

DI1 DI2 Function

0 0 No constant speed

1 0 Constant speed 1 (1202)

0 1 Constant speed 2 (1203)

1 1 Constant speed 3 (1204)

1 2 ... 187 188 189 190 191 192 193 194 195 196 197 ... 473 474

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ABB RCNA-01 User Manual Page 192

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