Configuration Of The Dip Switches - Baelz Automatic BA 375-E42 Operating Instructions Manual

Motorized Rotary Actuator

7.4 Configuration of the DIP switches

The factory setting of the DIP switches is position 0, as shown.
Switch Function
DIP 1 Set value input: voltage, V or current, mA?
DIP 2
Set value input starting at 0 V / 0 mA or
2 V / 4 mA?
DIP 3 Analogue output starting at 0 V / 0mA or
2 V / 4 mA?
DIP 4
Direction of control action: does valve
close when actuator turns clockwise or
anticlockwise? (position indicator in cover)
DIP 5
Current position of the actuator is saved as
additional switching position "2EZ-1". See
wiring diagram, page 20.
DIP 6 Current position of the actuator is saved as
second additional switching position "2EZ-1".
See wiring diagram, page 20.
DIP 7, 8, 9
These 3 DIP switches define the function:
linear / split range / 11-point / inverted
DIP 10 Defines valve characteristic using actuator
characteristic, see page 23.
DIP 11 Selects standard or Modbus mode.
DIP 12
Starts initialization run.
Set back to 0 after initialization
(s. section 7.5.2)
N↔S Selects normal or safety mode
Fig. 11: Setting the DIP switches
W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
baelz 375-E42
Position 1 "ON"
current, mA
2-10 V / 4-20 mA
2-10 V and / or
4-20 mA
Actuator turns
clockwise →
valve closed
Actuator characteristic
inverse equal
percentage, valve
action linear
Modbus mode
position "S"
= safety mode
= factory setting
Position 0
voltage, V
0-10 V / 0-20 mA
0-10 V and / or
0-20 mA
Actuator turns
anticlockwise →
valve closed
from 0 to 1 →
save "2EZ-1"
= 2%
from 0 to 1 →
save "2EZ-2"
= 98%
s. , page 24
= linear
Actuator characteristic
linear, valve action
equal percentage
standard mode
from 0 to 1 →
starts initialization run
position "N"
= normal mode
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