Samson TROVIS SAFE 3731-3, Монтаж и эксплуатация

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Cable entry
The threaded connections for the terminal
compartment are designed with ½ NPT or
M20x1.5 threads.
The electrical connections are screw termi-
nals for wire cross-sections of 0.2 to
2.5 mm² using a tightening torque of at least
0.5 Nm.
The wires for the reference variable are to
routed to the enclosure terminals marked
Signal and are polarity insensitive.
4
If the reference variable exceeds 22 mA,
OVERLOAD appears on the LC display
as a warning.
4
If the reference variable falls below
3.7 mA,
LOW appears on the LC display
as a warning.
Depending on the version, the positioner is
equipped with an additional binary output,
a forced venting function, a position trans-
mitter or a binary input.
The position transmitter is operated in 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 11 V
at the minimum and 35 V DC at the maxi-
mum (reverse polarity protection, see Tech-
nical data).
NOTICE
The demanded degree of protection might
not be met because the terminal compart-
ment is not sealed tightly. Only operate the
positioner with sealed cable entries and with
the lid screwed on properly.
NOTICE
Loss of explosion protection due to damaged
lid thread and/or connecting thread.
Do not open the flameproof enclosure when
the positioner is in the energized state. Ob-
serve explosion protection regulations.
1. Unscrew lid.
2. Guide the wires through the side cable
entry to the terminal compartment using
a cable gland or conduit system.
3. Connect wires to the terminals as
shown in the wiring diagram (Fig. 12).
4. Check O-ring for damage and replace
it with a new one, if necessary.
5. Screw on the lid as far as it will go.
Turn it back to first safety position
(notch).
6. Unscrew the cap screw to lock the lid.
EB 8387-3S EN
39
Connections
Fig. 11 · Location of the terminals
(lid unscrewed)