Switching Amplifiers - Samson 3730 Series Mounting And Operating Instructions

The position transmitter is operated on a
two-wire circuit. The usual supply voltage is
24 V DC. Considering the resistance of the
supply leads, the voltage at the position
transmitter terminals can be between 12 V
and 30 V DC.
Refer to Fig. 16 or the label on the terminal
strip for terminal assignment.
NOTICE
The minimum permissible reference variable
should not fall below 3.8 mA for operating
the positioner.
Optional
+81 -82 +11
24 V DC
mA
solenoid
Control signal
valve
(optional)
Fig. 16 · Electric connections
A3
-12 -84 +51
+83
Switching amplifier
acc. to EN 60947-5-6
A3
A2
Fault
Software
indication
Accessories
Plastic cable gland M20 x 1.5:
Black Order no. 8808-1011
Blue Order no. 8808-1012
Nickel-plated brass
Order no. 1890-4875
Adapter M20 x 1.5 to ½ NPT
Aluminum, powder-coated
Order no. 0310-2149

5.2.1 Switching amplifiers

For operation of the limit switches, switching
amplifiers must be connected in the output
circuit. To ensure the operating reliability of
the positioner, the amplifiers should comply
with the limit values of the output circuits
conforming to EN 60947-5-6.
If the positioner is to be installed in hazar-
dous areas, the relevant regulations must be
observed.
A2 A1
-52 +41 -42
Two-wire
Limit switches
transmitter
A1
supply unit
Software
for optional
or optionally
position
inductive
transmitter
Connections
Optional Optional
G
+31 -32 +31 -32
A
Binary input
(optional)
EB 8384-3 EN
45