Samson 3730-4 - Enabling and Selecting Parameters

56 EB 8384-4 EN
Connections
Observetherelevantregulationsforinstal-
lationinhazardousareas.
Accessories
Cable glands M20x1.5 Order no.
Black plastic
(6 to 12mm clamping range) 8808-1011
Blue plastic
(6 to 12mm clamping range) 8808-1012
Nickel-plated brass
(6 to 12mm clamping range) 1890-4875
Nickel-plated brass
(10 to 14mm clamping range) 1922-8395
Stainless steel 1.4305
(8 to 14.5mm clamping range) 8808-0160
EMC cable gland M20x1.5:
Nickel-plated brass
(7 to 12mm clamping range)
8808-0143
Adapter M20x1.5 to ½NPT
Powder-coated aluminum 0310-2149
Stainless steel 1400-7114
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 tted in place of the existing
blanking plug is necessary.
Degree of protection may be impaired.
Seal cable glands left unused with blanking
plugs.
Close the housing cover to obtain the IP66
degree of protection.
Refer to the PROFIBUS-PA User and Installa-
tion Guide (PNO document 2.092) for more
information.
Limit switch
The operation of the limit switch requires a
switching amplier to be connected in the
output circuit. Its function is to control the lim-
it values of the control circuit according to
EN60947-5-6, thus ensuring operational
reliability of the positioner.
Observe the relevant regulations for installa-
tion in hazardous areas.
Binary input BI1
An active contact can be operated at binary
input 1. The positioner can report the switch-
ing state over the bus protocol.
Binary input BI2
A passive, oating contact can be operated
at binary input 2. The positioner can report
the switching state over the bus protocol.
Solenoid valve (forced venting function)
For positioners tted with the optional sole-
noid valve for the forced venting function, a
voltage of 24VDC must be connected to the
relevant terminals +81 and –82.
If there is no voltage connected for the sole-
noid valve at terminals +81 and –82 or
when the voltage signal is interrupted, the
positioner vents the actuator.
The actuator does not respond to the set
point when the voltage is too low.
Observe the switching thresholds specied in
the technical data.
NOTICE
!
NOTICE
!