ABB ACS150 series, User Manual

Page: 77 / 173

76
Application macros
PID control macro
This macro provides parameter settings for closed-loop control systems such as
pressure control, flow control, and so on. Control can also be switched to speed
control using a digital input. To enable the macro, set the value of parameter
9902
APPLIC MACRO to 6 (PID CONTROL).
For the parameter default values, see section Default parameter values with different
macros on page 79 . If you use other than the default connections presented below,
see chapter Electrical installation , section I/O terminals on page 44 .
Note : Parameter 2108 START INHIBIT must remain in the default setting 0 (OFF).
1…10 kohm
Default I/O connections
2)
I/O connection
3)
SCR Signal cable shield (screen)
AI Process actual value :
4…20 mA
1)
GND Analog input circuit common
+10V Reference voltage: +10 V DC, max. 10 mA
Alternative connection
for AI1. If used, switch
IU selector to U
(2…10 V voltage
signal).
+24V Auxiliary voltage output: +24 V DC, max. 200 mA
GND Auxiliary voltage output common
COM Digital input common
DI1 Stop (0) / Start (1) (Hand)
DI2 Hand (0) / PID (1) control selection
DI3 Constant speed 1 : parameter 1202 CONST SPEED 1
DI4 Run enable
DI5 Stop (0) / Start (1) (PID)
Relay connection
4)
COM Relay output
NC
No fault [Fault (-1)]
NO
1)
Hand: frequency reference comes from the
integrated potentiometer
PID: Process reference comes from the
integrated potentiometer.
2)
360 degree grounding under a clamp.
3)
Tightening torque: 0.22 N·m / 2 lbf·in
4)
Tightening torque: 0.5 N·m / 4.4 lbf·in