Siemens PROFIBUS PA SIPART PS2 Manual page 59

5. Tighten the cable gland.
6. Connect the red and green wires as
shown in figure 3-14, page 58 to terminals
3 and 7 of the motherboard (the polarity is
immaterial).
for positioner in normal version
and in explosion-proof version
Buscable 6XV1 830--5AH10
a = 80
a = 120
Figure 3-13 Preparation of bus cable
.
SIPART PS2 PA Manual
A5E00127926-03
10
or 6XV1 830--5BH10
in normal version (without Ex and without Ex i)
in explosion-proof version (Ex d)
For error-free communication the bus must be terminated at both ends
with a bus terminator. At the end nearest the control system, this is al-
ready assured by the terminator contained within the coupling or link.
At the far end of the bus this must be achieved by fitting an additional
terminator.
So as to avoid potential differences between individual equipment parts
and thus the risk of functional impairment, a suitable potential bonding
is to be provided. Information regarding dimensions and types can be
found in DIN VDE 0100 parts 410 and 540.
NOTE
Use standard M20 x 1.5 cable gland nuts to ensure leakage (IP--
protection of the housing) and for the necessary tensile strength use
only cables with a cable diameter ≥ 8 mm, or for smaller diameters
use a suitable sealing insert.
NOTE for use in zone 2:
Non-sparking equipment for Zone 2 may not be connected or discon-
nected under power in normal operation.
However, during installation or repair work the positioner may be con-
nected or disconnected even under power (see also certificate for zone
2).
5. Tighten the Ex--d--certified cable gland. *)
6. Connect the red and green wires as
shown in figure 3-16, page 59 to terminals
3 and 7 of the motherboard (the polarity is
immaterial).
*) if the Conduit Tube System is being used, refer to the
relevant instructions.
a
Cable shield
Preparing for Operation
5
57