Pid Control Macro; Default I/O Connections - ABB ACS350 User Manual

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PID Control macro

This macro provides parameter settings for closed-loop control systems such as
pressure control, flow control, etc. Control can also be switched to speed control
using a digital input. To enable the macro, set the value of parameter
CONTROL).
For the parameter default values, see section
on page 142. If you use other than the default connections presented below, see
section
Note: Parameter

Default I/O connections

1...10 kohm
max. 500 ohm
1)
Hand: 0...10 V -> speed reference.
PID:
2)
360 degree grounding under a clamp.
Application macros
I/O terminals on page 40.
2108 START INHIBIT must remain in the default setting 0 (OFF).
X1A
1 SCR
2 AI1
3 GND
4 +10V
5 AI2
6 GND
7 AO
8 GND
2)
9 +24V
10 GND
11 DCOM
12 DI1
13 DI2
14 DI3
15 DI4
16 DI5
X1B
17 ROCOM
18 RONC
19 RONO
20 DOSRC
21 DOOUT
22 DOGND
0...10 V -> 0...100% PID setpoint.
Default values with different macros
Signal cable shield (screen)
Motor speed ref. (Hand) / Process ref. (PID): 0...10 V
Analog input circuit common
Reference voltage: +10 VDC, max. 10 mA
Process actual value: 4...20 mA
Analog input circuit common
Motor speed value: 0...20 mA
Analog output circuit common
Auxiliary voltage output: +24 VDC, max. 200 mA
Auxiliary voltage output common
Digital input common
Stop (0) / Start (1) (Hand)
Hand (0) / PID (1) control selection
Constant speed 1: parameter
Run enable
Stop (0) / Start (1) (PID)
Relay output
No fault [Fault (-1)]
Digital output, max. 100 mA
No fault [Fault (-1)]
3)
The signal source must be powered externally.
See the manufacturer's instructions. An
example of a connection using a two-wire
sensor is given on page 41.
Tightening torque = 0.5 N·m / 4.4 lbf. in.
9902 to 6 (PID
1)
3)
1202