Operating Instructions ACU
7.8.1 Configuration 110 – Sensorless Control
Configuration 110 contains the functions for variable-speed control of a 3-phase machine in a wide
range of standard applications. The motor speed is set according to the selected ratio of the reference
frequency to the necessary voltage.
Voltage output +20 V or input for
external power supply DC 24 V
±10%
GND 20 V/ GND 24 V (ext.)
Digital input STOA (1. shut-down
path of STO safety function)
Start of clockwise operation
Start of anticlockwise operation
Digital input STOA (2nd shut-down
path of STO safety function)
Analog signal of actual frequency
Supply voltage +10 V for reference
value potentiometer
Reference speed 0 ...+10 V
7.8.2 Configuration 111 – Sensorless Control with Technology
Controller
Configuration 111 extends the functionality of the sensorless control by software functions for easier
adaptation to the customer's requirements in different applications. The Technology Controller enables
flow rate, pressure, level or speed control.
Voltage output +20 V or input for
external power supply DC 24 V
±10%
GND 20 V/ GND 24 V (ext.)
Digital input STOA (1st shut-down
path of STO safety function)
Fixed Percent Change-Over 1
Fixed Percent Change-Over 2
Digital input STOB (2nd shut-down
path of STO safety function)
Analog signal of actual frequency
Actual percentage value 0 ...+10 V
S7IND
S1OUT
MFO1A
+10 V/ 4 mA
MFI1A
GND 10 V
1
2
3
4
5
6
7
X210A
+20 V/180 mA
GND 20 V
S1IND
S2IND
S3IND
S4IND
S5IND
S6IND
X210B
1
2
3
4
5
6
7
M
V
+
-
+
-
STOA
STOB
24 V
ext.
S7IND
S1OUT
MFO1A
+10 V/4 mA
MFI1A
GND 10 V
1
2
3
4
5
6
7
X210A
+20 V/180 mA
GND 20 V
S1IND
S2IND
S3IND
S4IND
S5IND
S6IND
X210B
1
2
3
4
5
6
7
M
V
+
-
+
-
-
+
STOA
STOB
24 V
ext.