Pid Control Macro - ABB ACS355 series User Manual

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
MACRO to 6 (PID
For the parameter default values, see section
page 180. If you use other than the default connections presented below, see section
I/O terminals on page 53.
Note: The default I/O connections described below are applicable to firmware version
5.050 or later. For the default values in earlier firmware versions, see Revision A of
this user's manual.
Note: Parameter 2108 START INHIBIT

Default I/O connections
1...10 kohm
max. 500 ohm
1)
Hand: 0...10 V -> speed reference.
PID: 0...10 V -> 0...100% PID setpoint.
2)
360 degree grounding under a clamp.
3)
The signal source is powered externally. See the
manufacturer's instructions. To use sensors
CONTROL).
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
Default values with different macros
must remain in the default setting 0 (OFF).
Signal cable shield (screen)
Proc. ref. (PID) / Motor freq. ref. (Hand): 0...10 V
Analog input circuit common
Reference voltage: +10 V DC, 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 V DC, max. 200 mA
Auxiliary voltage output common
Digital input common
Stop (0) / Start (1) (PID)
PID (0) / Hand (1) control selection
Constant speed 1: parameter
Run enable
Stop (0) / Start (1) (Hand)
Relay output 1
No fault [Fault (-1)]
Digital output, max. 100 mA
No fault [Fault (-1)]
supplied by the drive aux. voltage output, see page
55.
Tightening torque: 0.4 N·m / 3.5 lbf·in.
Safe torque off connections (X1C:STO; not shown in
the diagram) are jumpered by default.
Application macros 115
9902 APPLIC
3)
1202
on
1)