Switching Amplifiers - Samson 3767 Mounting And Operating Instructions

The wiring for the reference variable is led
to the terminals 11 and 12.
The positioner does not have to be con-
nected to a bonding conductor. If need be,
the bonding conductor can be connected ei-
ther inside or outside of the housing.
Depending on the version used, the
positioner is equipped with inductive limit
switches and/or a solenoid valve. Versions
with position transmitter do not permit the
connection of these accessories.
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 and
45 V DC.
For terminal assignment, refer to Fig. 12 or
the label on the terminal strip.
mA
control signal
Fig. 12 · Electrical connections
On the rear
Switching amplifier
acc. to EN 60947-5-6
Accessories:
Positioner index 3767-x...x. 03 or lower
Cable gland PG 13.5
Plastic, black
Plastic, blue
Brass, nickel-plated Order no. 1400-6979
Adapter PG 13.5 to ½ NPT:
Metallic
Painted blue
Positioner index 3767-x...x. 04 or higher
Cable gland M 20 x 1.5
Plastic, black
Plastic, blue
Brass, nickel-plated Order no. 1890-4875
Adapter M 20 x 1.5 to ½ NPT:
Aluminum, powder-coated

3.2.1 Switching amplifiers

To operate the inductive limit switches,
switching amplifiers complying with EN
60947-5-6 must be connected in the output
circuit. Observe the relevant regulations
when installing the positioner in hazardous
areas.
Version with position transmitter
6 to 24 V DC
control signal
solenoid valve
Connections
Order no. 1400-6781
Order no. 1400-6782
Order no. 1400-7109
Order no. 1400-7110
Order no. 1400-6985
Order no. 1400-6986
Order no. 0310-2149
mA
Voltage supply for transmitter,
only for position transmitter
EB 8355-2 EN
31