Allocation Of Connection Terminals - Baelz Automatic BA 375-E42 Operating Instructions Manual

Motorized Rotary Actuator
Fig. 10: Wiring diagram with digital positioner baelz 7020A

7.3.2 Allocation of connection terminals

W. Baelz & Sohn GmbH & Co. · Koepffstrasse 5 · 74076 Heilbronn · Germany · www.baelz.de
Terminal Allocation
2, 3
supply terminals
4, 5, 12, 14
Can be allocated to an
overriding external control
system (freeze protection,
excessive temperatures).
20, 22
Digital input for a switch
used to select between two
conditions,
e.g. „open / closed" or
„summer / winter".
23, 24, 25, Analogue output position
indicater using voltage and
26
/ or current.
38, 39, 40 Connection terminals for
Modbus
91, 92, 93
Connection terminals for
potentiometer
U, 0, I
Input setpoint value for
valve position
E1, E2, E3,
Terminals for 2 digital
outputs
E4, E5, E6
97, 98, 99
Connection terminals for
motor
baelz 375-E42
Notes
See wiring diagram for
correct allocation.
For external control, the
N↔S switch must be set
to „S" (safety mode).
Analogue outputs
can be connected
simultaneously.
IMPORTANT! Position of
DIP switch 1, see section
7.4
IMPORTANT! Position of
DIP switches 5 & 6, see
section 7.4
Ex-works wiring varies
according to type of
actuator
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