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Operating Instructions
BA 373-E66
Technical specifications subject to change
W. Bälz & Sohn GmbH & Co.
Koepffstrasse 5
74076 Heilbronn
Germany
Phone +49 (0)7131 15 00 0
Fax +49 (0)7131 15 00 21
www.baelz.de
Observe copyright protection DIN 34
7.3.1 Terminal assignment
Terminal X4:
To avoid interference, route the signal lines separately from the voltage supply lines. Particularly when using volt-
age signals, we recommend to use a shielded cable and to connect the shield to the protective earth (PE) connec-
tion on the actuator housing.
The impedance of the current input is 50 Ω. When using the voltage input, the impedance is 20 kΩ.
Terminal X2:
Terminal X3:
Connector X4:
The potentiometer is plugged onto the positioner's printed circuit board using a connector.
Figure 16: Pin assignment table
Terminal
Function
54
L
Power input Phase
50/60 Hz
55
N
Power input Neutral
Terminal
Function
60
Output mA
0 (4)...20 mA
61
Output Volt
0 (2)...10 V
58
GND
Ground
57
GND
Ground
56
Input Volt
0 (2)...10 V
59
Intput mA
0 (4)...20 mA
Terminal
Function
51
L↑
Phase, spindle retracts
50/60 Hz
52
N
Neutral, power input
53
L↑
Phase, spindle extends
50/60 Hz
Pin
Function
1
Maximum value
blue
2
Sensing at the slider
green
3
Zero
red