Application Macro Pid Control - ABB ACS140 User Manual

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.
Input signals
• Start/stop (DI1)
• Analogue reference (AI1)
• Actual value (AI2)
• Control location selection (DI2)
• Constant speeds (DI4,5)
PT
mA
Note!
* DI2 must be activated before giving start command to DI1 while changing to
PID control (PID).
** Constant speed is not considered while in PID control (PID).
Note! The parameter 2107
Critical frequencies (group 25) are ignored while in PID control (PID).
PID control parameters (group 40) do not belong to the Basic parameter set.
PID Control parameter values:
1001 1
EXT COMMANDS
1002 2
EXT COMMANDS
1003
DIRECTION
1102 1/ 2
EXT EXT SEL
1103 1
EXT REF SELECT
1106 2
EXT REF SELECT
1201
CONST SPEED SEL
1601
RUN ENABLE
2105
PREMAGN SEL
2201 / 1/2
ACC DEC
Output signals
• An. output AO: Frequency
• Relay output 1: Fault
• Relay output 2: Running
Control
Function
Terminals
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 ACS140*
12 DI 2 EXT1/EXT2 select: Activate to select PID control*
13 DI 3 Not Used
14 DI 4 Three constant speeds (1..3) are selected with two
digital inputs DI4 and DI5; not used if PID control**
15 DI 5 Three constant speeds (1..3) are selected with two
digital inputs DI4 and DI5; not used if PID control**
16 RO 1A
17 RO 1B
18 RO 2A
19 RO 2B
START INHIBIT
1 ( 1)
DI
1 ( 1)
DI
1 (
FORWARD
2 ( 2)
DI
1 ( 1)
AI
1 ( 1)
AI
8 ( 4,5)
DI
0 (
NOT SEL
0 (
NOT SEL
0 (
SEL NOT SEL
ac.maher.co.ir
should be 0 (
2202
ACCELER TIME
2203
DECELER TIME
) 2606 /
U F RATIO
3101
NR OF TRIALS
3103
DALAY YIME
3106
AR UNDERVOLTAGE
4001
PID GAIN
) 4002
PID INTEGR TIMR
) 4019
SETP SEL
) 4022
PID PARAM SET
DIP switch S1
S1:1:U
S1:2: I
Relay output 1
Fault: open
Relay output 2
Running: closed
).
OFF
1 10 s
1 10 s
2 (
SQUARE
5
1.0
S
1 (
ENABLE
0.7
10
S
1 (
INTERNAL
3 ( 3)
DI
)
)
)