Samson 3730-5 Mounting And Operating Instructions page 56

Connections
There is a second M20 x 1.5 threaded hole
in the housing that can be used for addition-
al connection, when required.
The screw terminals are designed for wire
cross-sections of 0.2 to 2.5 mm². Tighten
screws by 0.5 to 0.6 Nm.
Note:

The power supply for the positioner
can be supplied either over the con-
nection to the fieldbus segment or
over a DC voltage source (9 to 32 V)
connected to the bus terminals in the
positioner.
Observe the relevant regulations for
installation in hazardous areas.
Accessories
Cable glands M20 x 1.5
Black plastic
(6 to 12 mm clamping range)
Blue plastic
(6 to 12 mm clamping range)
Nickel-plated brass
(6 to 12 mm clamping range)
Nickel-plated brass
(10 to 14 mm clamping range)
Stainless steel 1.4305
(8 to 14.5 mm clamping range)
EMC cable gland M20 x 1.5:
Nickel-plated brass
(7 to 12 mm clamping range)
Adapter M20x1.5 to ½ NPT
Powder-coated aluminum
Stainless steel
56
Bus line
Route the two-wire bus line to the screw ter-
minals marked "IEC 1158-2", whereby no
polarity needs to be observed.
To connect the limit switch, binary inputs, and
forced venting, an additional cable gland that
needs to be fitted in place of the existing
blanking plug is necessary.
Limit switch
Order no.
The operation of the limit switch requires a
switching amplifier to be connected in the
8808-1011
output circuit. Its function is to control the lim-
it values of the control circuit according to
8808-1012
EN 60947-5-6, thus ensuring operational
reliability of the positioner.
1890-4875
Observe the relevant regulations for installa-
tion in hazardous areas.
1922-8395
Binary input BI1
8808-0160
An active contact can be operated at binary
input 1. The positioner can report the switch-
ing state over the bus protocol.
8808-0143
Binary input BI2
A passive, floating contact can be operated
0310-2149
at binary input 2. The positioner can report
1400-7114
the switching state over the bus protocol.
NOTICE
Degree of protection may be im-
paired.
Do not use the positioner with open
cable glands.
Seal cable glands left unused with
blanking plugs.
EB 8384-5 EN