ABB ACS550 Series, User Manual

Page: 162 / 310

162 ACS550 User’s Manual
Parameters
4008 0% VALUE
Defines (together with the next parameter) the scaling applied to
the PID controller’s actual values (PID1 parameters 0128, 0130
and 0132).
• Units and scale are defined by parameters 4006 and 4007.
4009 100% VALUE
Defines (together with the previous parameter) the scaling applied
to the PID controller’s actual values.
• Units and scale are defined by parameters 4006 and 4007.
4010 SET POINT SEL
Defines the reference signal source for the PID controller.
• Parameter has no significance when the PID regulator is by-passed (see 8121
REG BYPASS CTRL
).
0 =
KEYPAD
– Control panel provides reference.
1 =
AI
1 – Analog input 1 provides reference.
2 =
AI
2 – Analog input 2 provides reference.
8 =
COMM
– Fieldbus provides reference.
9 =
COMM
+
AI
1 – Defines a fieldbus and analog input 1 (
AI
1) combination as the reference source. See Analog input
reference correction below.
10 =
COMM * AI
1 – Defines a fieldbus and analog input 1 (
AI
1) combination as the reference source. See Analog input
reference correction below.
11 =
DI
3
U
,4
D
(
RNC
) – Digital inputs, acting as a motor potentiometer control, provide reference.
•
DI
3 increases the speed (the U stands for “up”)
•
DI
4 decreases the reference (the D stands for “down”).
• Parameter 2205
ACCELER TIME
2 controls the reference signal’s rate of change.
• R = Stop command resets the reference to zero.
• NC = Reference value is not copied.
12 =
DI
3
U
,4
D
(
NC
) – Same as
DI
3,4
D
(
RNC
) above, except:
• Stop command does not reset reference to zero. At restart the motor ramps up, at the selected acceleration rate,
to the stored reference.
13 =
DI
5
U
,6
D
(
NC
) – Same as
DI
3
U
,4
D
(
NC
) above, except:
• Uses digital inputs
DI
5 and
DI
6.
14 =
AI
1+
AI
2 – Defines an analog input 1 (
AI
1) and analog input 2 (
AI
2) combination as the reference source. See
Analog input reference correction below.
15 =
AI
1*
AI
2 – Defines an analog input 1 (
AI
1) and analog input 2 (
AI
2) combination as the reference source. See
Analog input reference correction below.
16 =
AI
1-
AI
2 – Defines an analog input 1 (
AI
1) and analog input 2 (
AI
2) combination as the reference source. See
Analog input reference correction below.
17 =
AI
1/
AI
2 – Defines an analog input 1 (
AI
1) and analog input 2 (
AI
2) combination as the reference source. See
Analog input reference correction below.
19 =
INTERNAL
– A constant value set using parameter 4011 provides reference.
20 =
PID
2
OUT
– Defines PID controller 2 output (parameter 0127
PID
2
OUTPUT
) as the reference source.
Code Description
Internal scale (%)
P 4009
P 4008
100% 0%
Units (P4006)
Scale (P4007)
-1000.0%
+1000.0%