Samson Type 3766, Монтаж и эксплуатация

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Depending on the version used, the posi-
tioner is equipped with inductive limit swit-
ches and/or a solenoid valve. Versions with
position transmitter do not permit the con-
nection 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.
Note on the selection of cables and wires
To run several intrinsically safe circuits in
one multi-core cable, observe section 12 of
EN 60079-14; VDE 0165/8.98.
Note especially that for commonly used insu-
lating materials such as polyethylene the
radial thickness of the conductor insulation
must be at least 0.2 mm. The diameter of a
single wire of a flexible conductor must not
be smaller than 0.1 mm.
The conductor ends must be protected
against unlaying, e.g. by using wire end fer-
rules.
Cable entries left unused must be sealed
with caps.
When two separate cables are used for con-
nection, an additional cable gland can be
installed.
Accessories
Cable gland M20 x 1.5
Plastic, black Order no. 1400-6985
Plastic, blue Order no. 1400-6986
Brass, nickel plat. Order no. 1890-4875
Adapter M20 x 1.5 to 1/2 NPT:
Aluminum, powder coated
Order no. 0310-2149
3.2.1 Switching amplifiers
To operate the inductive limit switches, am-
plifiers must be connected in the output cir-
cuit. These amplifiers are expected to
comply with the limits of the control circuit
according to NAMUR to ensure safe oper-
ation of the positioner. Observe the relevant
regulations when installing the positioner in
hazardous areas.
Fig. 12
⋅
Electrical connections
+41 –42 +51 –52 +81 –82 +31 –32
G
E
i
+
–
+
–
(B)
A
(A)
B
A
+11 –12 +11 –12
E
i
/
E
i
/
A A
Rear connections
Version with position transmitter
Switching amplifier
acc. to EN 60947-5-6
Voltage supply for transmitter,
only for position transmitter
6 to 24 V DC
solenoid valve
30
EB 8355-1 EN
Electrical connections