Samson 3767 - Switching Amplifier

5-28 EB 8355-2 EN
Installation
The maximum permissible values specied
in the statement of conformity and its ad-
denda apply when interconnecting the
equipment with energy-limited circuits in
type of protection ExnLIIC.
The wires for the set point must be connected
to the terminals 11 and 12 located in the
housing.
In general, it is not necessary to connect the
device to a bonding conductor. Should this
be required, however, this conductor can be
connected inside the device or outside on the
device.
Depending on the version, the positioner is
equippedwithinductivelimitswitchesand/
or a solenoid valve.
Versionswithpositiontransmitterdonotper-
mit the connection of additional equipment.
The position transmitter is operated on a
two-wire circuit. The usual supply voltage is
24VDC.
Taking the resistance of the supply leads into
account, the voltage at the position transmit-
ter terminals can be between 12 and
45VDC.
Refer to Fig.5-14 or to the label on the ter-
minal block.
5.7.1 Switching amplier
The operation of the inductive limit switches
requiresswitchingampliersinaccordance
withEN60947-5-6tobeconnectedinthe
output circuit. Observe the relevant regula-
tionsforinstallationinhazardousareas.
+41 –42 +51 –52 +81 –82 +31 –32
G
E
i
+
–
+
–
(B)
A
(A)
B
A
+11 –12 +11 –12
E
i
/
E
i
/
AA
mA control
signal
6to24VDC
solenoid valve
Transmitter supply voltage
for position transmitter only
Rear Versionwithpositiontransmitter
Switchingamplier
acc.toEN60947-5-6
Fig.5-14: Electrical connections