Application Macro Pid Control - ABB ACS 400 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 (DI1,5)
• Analogue reference (AI1)
• Actual value (AI2)
• Control location selection (DI2)
• Constant speed (DI3)
• Run enable (DI4)
PT
mA
Note!
* 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:
1001 1
EXT
1002 2
EXT
1003
DIRECTION
1102 1/
EXT
1103
EXT REF
1105
EXT REF
1106
EXT REF
1201
CONST SPEED SEL
1401
RELAY OUTPUT
ACS 400 User's Manual
PID CTRL
Output signals
• An. output AO: Frequency
• Relay output 1: Fault
• Relay output 2: Running
SCR

AI1
 EXT1 (Manual) or EXT2 (PID) reference: 0...10 V
AGND

+10V
 Reference voltage 10 VDC
AI2

Actual signal; 0...20 mA (PID)
AGND

Output frequency 0...20 mA <=> 0...50 Hz
AO1

AGND

+24 VDC
+24V
 DCOM1
Start/Stop: Activate to start ACS 400 (Manual).
DI1

DI2
EXT1/EXT2 Selection: Activate to select PID control

DI3
 Constant speed 1: not used if PID control*
DI4

Run enable: deactivation always stops ACS 400
DI5

Start/Stop: Activate to start ACS 400 (PID)
DCOM2

RO1C
 Relay output 1, programmable
RO1A

Default: Fault => 17 connected to 18
RO1B

Relay output 2, programmable
RO2C

RO2A
 Default: Running => 20 connected to 22
RO2B

1 (
COMMANDS DI
6 (
COMMANDS DI
1 (
FORWARD
2 2 (
EXT SEL DI
1 1 (
SELECT AI
1 50 Hz
MAX
2 1 (
SELECT AI
3 (
DI
1 3 (
FAULT
).
1) 1402
RELAY OUTPUT
5) 1503
AO CONTENT MAX
) 1601
RUN ENABLE
2) 1604
FAULT RESET SEL
1) 2008
MAXIMUM FREQ
2105
PREMAGN SEL
1) 2201 /
ACC DEC
3) 4001
PID GAIN
(-1)) 4002
PID INTEG TIME
U/I Jumper J1
$,
0 - 10 V
$,
0(4) - 20 mA
2 2 ( )
RUN
50 Hz
4 (DI4)
0 (
KEYPAD
50 Hz
0 (
NOT SEL
1/2 0 (
SEL NOT SEL
1.0
60 s
)
)
)
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