Operating instructions
12  Application manual Positioning  04/08
3.3 Control Inputs and Outputs 
  The modular structure of the frequency inverters enables a wide spectrum of appli-
cations on the basis of the available hardware and software functionality. The func-
tionality of the control inputs and outputs described in the "Quick Start Guide" and 
operating instructions is extended in the described configurations. 
Caution!
Switch off power supply before connecting or disconnecting the control 
inputs and outputs. Verify that the keyed control inputs and outputs are 
deenergized before connecting or disconnecting them. Otherwise, com-
ponents may be damaged. 
The unit may only be connected with the power supply switched off. 
Make sure that the frequency inverter is discharged. 
  ACU frequency inverters of ACTIVE Cube series 
Control terminal X210A 
X210A.1  +20 V voltage output (I
max
=180 mA) or 
input for external power supply 24 V 
X210A.2  GND 20 V/ GND 24 V (ext.) 
X210A.3  Safety function, digital input STOA 
X210A.4  − Start Positioning 
− JOG Clockwise 
− Store actual position value (latching) 
X210A.5  − Stop Positioning 
− JOG Anticlockwise 
− Touch probe 
X210A.6  Encoder 1 Track B 
1) 
or 
freely programmable 
2)
X210A.7  Encoder 1 Track A 
1) 
or 
freely programmable 
2)
Control terminal X210B 
X210B.1  Home switch 
3)
 or 
Encoder 1 Zero Track Z 
4)
X210B.2  Safety function, digital input STOB 
X210B.3  Operating message 
X210B.4  Analog signal of actual frequency 
X210B.5  Supply voltage +10V 
X210B.6  − Change-over position control/JOG 
mode (JOG mode active) 
− Teach-In-Signal 
S7IND
S1OUT
MFO1A
+10 V/4 mA 
MFI1D
GND 10 V
1
2
3
4
5
6
7
X21
0
A
+20 V / +24 V ext.
GND 20 V / GND 24 V ex
t
STOA
STOB
S1IND
S2IND
S3IND
S4IND
S5IND
S6IND
X210B
1
2
3
4
5
6
7
+
B
-
A
Z
X210B.7  Ground 10 V 
1)
  Factory setting in configuration 240 
2) 
If no speed sensor is connected to S4IND/S5IND the digital inputs can be used freely program-
mable (e.g. for hardware limit switches).
3) 
Factory setting in configurations 240, 440 and 540 
4) 
For evaluation of an encoder zero track an Operation Mode 490 for speed sensor 1 higher than 
1000 must be selected. Linking of other functions to this input are not active. 
The connection diagram describes the default assignment of control terminals and 
functions in the different configurations positioning control. According to the re-
quirements of the application, the other functions can be assigned to the control 
terminals. 
Note:
In order to fully use the positioning functions, an optional extension 
module is required. This module enables, for example, encoder evalua-
tion, motion-block change-over or reference percentage change-over. 
Application manual Positioning 04/0812










