ABB ACS 140, Руководство по программированию, Страница: 29 / 70

21
A
P
PL
IC
A
T
IO
N
MACRO
S
Application Macro PID Control
This macro is intended for use with different closed-loop control systems
such as pressure control, flow control, etc.
The value of parameter 9902 is 6.
Note!
* Critical frequencies (group 25) are ignored while in PID control (PID).
** Constant speed is not considered while in PID control (PID).
PID control parameters (group 40) do not belong to the Basic parameter set.
PID Control parameter values:
Input signals Output signals U/I Jumper S1
• Start/stop (DI1,5) • An. output AO: Frequency
• Analogue reference (AI1) • Relay output 1: Fault
• Actual value (AI2) • Relay output 2: Running
• Control location selection (DI2)
• Constant speed (DI3)
• Run enable (DI4)
9905
MOTOR NOM VOLT
230/400 V 1105
EXT REF
1
MAX
50 Hz
9907
MOTOR NOM FREQ
50 Hz 1106
EXT REF
2
SELECT
1 (
AI
1)
9908
MOTOR NOM SPEED
1440 rpm 1201
CONST SPEED SEL
3 (
DI
3)
1001
EXT
1
COMMANDS
1 (
DI
1) 1503
AO CONTENT MAX
50 Hz
1002
EXT
2
COMMANDS
6 (
DI
5) 1601
RUN ENABLE
4 (DI4)
1003
DIRECTION
1 (
FORWARD
) 2008
MAXIMUM FREQ
50 Hz
1101
KEYPAD REF SEL
1 (
REF
1) 2105
PREMAGN SEL
0 (
NOT SEL
)
1102
EXT
1/
EXT
2
SEL
2 (
DI
2) 2201
ACC
/
DEC
1/2
SEL
0 (
NOT SEL
)
1103
EXT REF
1
SELECT
1 (
AI
1)
S1:1:U
S1:2: I
Control
Terminals
Function
1 SCR
2 AI 1 EXT1 (Manual) or EXT2 (PID) reference; 0...10 V
3 AGND
4 10 V Reference voltage 10 VDC
5 AI 2 Actual signal; 0...20 mA (PID)
6 AGND
7 AO Output frequency 0...20 mA <=> 0...50 Hz
8 AGND
9 +12 V +12 VDC
10 DCOM
11 DI 1 Start/Stop: Activate to start ACS 140 (Manual)
12 DI 2 EXT1/EXT2 select: Activate to select PID control*
13 DI 3 Constant speed 1; not used if PID control**
14 DI 4 Run enable: deactivation always stops ACS 140
15 DI 5 Start/Stop: Activate to start ACS 140 (PID)
16 DO 1A Relay output 1
Fault: open
17 DO 1B
18 DO 2A
Relay output 2
Running: closed
19 DO 2B
mA
PT