Pid Control Macro - ABB ACS550 User Manual

ACS550 User's Manual

PID Control macro

This macro provides parameter settings for closed-loop control systems such as
pressure control, flow control, etc. To enable, set the value of parameter 9902 to
6 (
PID CONTROL
Note: Parameter 2108
Connection example:
1...10 kohm
3
• Analog reference (AI1)
• Actual value (AI2)
• Start/stop – hand/PID (DI1, 6)
• EXT1/EXT2 selection (DI2)
• Constant speed selection (DI3, 4)
• Run enable (DI5)
Note: Use the following switch-on order:
1. EXT1/EXT2
2. Run Enable
3. Start.
).
START INHIBIT
X1
1 SCR Signal cable shield (screen)
2 AI1 External ref. 1 (Manual) or Ext ref. 2 (PID): 0
3 AGND Analog input circuit common
4 10V Reference voltage 10 V DC
5 AI2 Actual signal (PID): 4
6 AGND Analog input circuit common
7 AO1 Motor output speed: 0
8 AO2 Output current: 0
9 AGND Analog output circuit common
Auxiliary voltage output +24 V DC
10 24V
Auxiliary voltage output common
11 GND
Digital input common for all
12 DCOM
13 DI1
Start/Stop (Hand): Activation starts the drive
14 DI2
EXT1/EXT2 selection: Activation selects PID control
15 DI3
Constant speed selection 1: (Not used in PID control)
16 DI4
Constant speed selection 2: (Not used in PID control)
17 DI5 Run enable: Deactivation always stops the drive
18 DI6
Start/Stop (PID): Activation starts the drive
19 RO1C
Relay output 1, programmable
20 RO1A Default operation:
Ready =>19 connected to 21
21 RO1B
22 RO2C
Relay output 2, programmable
23 RO2A Default operation:
Running =>22 connected to 24
24 RO2B
25 RO3C
Relay output 3, programmable
26 RO3A Default operation:
Fault (-1) =>25 connected to 27
27 RO3B
(Fault => 25 connected to 26)
Input signals
must remain in the default setting, 0 (
Note 1.
Manual: 0
...
20 mA
PID: 0
setpoint
...
20 mA
...
20 mA
Note 3.
The sensor needs to be powered.
See the manufacturer's instructions.
A connection example of a two-wire
sensor is shown on page 80.
Output signals
• Analog output AO1: Speed
• Analog output AO2: Current
• Relay output 1: Ready
• Relay output 2: Running
• Relay output 3: Fault (-1)
OFF
... 1
10 V
...
10V => speed reference
... ...
10V => 0 100% PID
2
2
Note 2. Code:
0 = open, 1 = connected
DI3 DI4 Output
0 0 Reference through AI1
1 0 1 (1202)
CONST SPEED
0 1 2 (1203)
CONST SPEED
1 1 3 (1204)
CONST SPEED
Jumper setting
J1
...
AI1: 0
AI2: 0(4)
or
J1
...
AI1: 0
AI2: 0(4)
Application macros
77
).
10 V
...
20 mA
10 V
...
20 mA