ABB ACH550-02-645A-4 [284/454] Parameter listing and descriptions

280 Parameter listing and descriptions

ACH550-02 User's Manual

4006 UNIT 0…127

Selects the unit for the PID controller actual values. (PID1 parameters

0128, 0130 and 0132).

• See parameter 3405 for list of available units.

4007 UNIT SCALE 0…4

Defines the decimal point location in PID controller actual values.

• Enter the decimal point location counting from the right end of the

entry.

• See the table for an example using pi (3.14159).

4008 0% VALUE unit and scale defined

by par. 4006 and 4007

Defines (together with the next parameter) the scaling applied to the

actual values of the PID controller (PID1 parameters 0128, 0130 and

0132).

• Units and scale are defined by parameters 4006 and 4007.

4009 100% VALUE unit and scale defined

by par. 4006 and 4007

Defines (together with the previous parameter) the scaling applied to

the actual values of the PID controller.

• Units and scale are defined by parameters 4006 and 4007.

Code Description Range

4007 Value Entry Display

0000033

1 00031 3.1

2 00314 3.14

3 03142 3.142

4 31416 3.1416

Internal scale (%)

P 4009

P 4008

100%

Units (P4006)

Scale (P4007)

-1000.0%

+1000.0%