Siemens 3VF Series Communications Manual page 33

Communication System Manual
The DP/3WN6 interface module must be correctly installed and connected (cf. user guide):
The compact housing of the interface module is 70 mm wide and can simply be snapped onto a
35 mm DIN rail (the interface module must not be mounted directly above the 3WN6 arcing space,
unless suitable covers have been fitted). The devices can be mounted side by side.
The earth connection of the interface module (shield signal for electronic circuit) is made using an
earth wire (2.5 mm
DIN rail immediately next to the interface module.
The cable screen of the 3WN6-DP/3WN6 connecting cable must also be earthed between the
interface module and 3WN6, e.g. by connecting it to the DIN rail, in order to comply with
interference emission standard EN 55022:1994, limit class A.
The standard length of connecting cable 3WN6-DP/3WN6 between the 3WN6 circuit-breaker and
the DP/3WN6 interface module is 3 m.
Please refer to page 89 for detailed information on the DP/3WN6 interface (technical data,
design, screening).
Step 3: Connect DP/3WN6 to PROFIBUS-DP
Now you can wire connector 6ES7... (up to 12 Mbaud) to the PROFIBUS-DP cable (cf. connector
user guide). Then plug the wired connector into the "PROFIBUS-DP" socket on the interface
module.
Step 4: Connect DP/3WN6 interface module to 3WN6 circuit-breaker
Connection of 3WN6-DP/3WN6 connecting cable: This cable is supplied with the interface and is
plugged into the 3WN6-DP/3WN6 adapter (9-pin SUB-D socket), which is fitted on the circuit-
breaker at the factory, and into the "DP/3WN6" (9-pin SUB-D) socket on the front of the interface
module.
Note: All communication-capable circuit-breakers (fixed-mounted), and all communication-capable
guide frames (for draw-out circuit-breakers) are fitted with a 3WN6-DP/3WN6 adapter at the factory.
This 3WN6 adapter can also be ordered as a spare part using the following order numbers:
- Adapter 3WN6-DP/3WN6 (0.4 m) for 3WN6 fixed-mounted circuit-breaker, comprising one SUB-D
socket and free cable ends, and including mounting materials.
Order number:
- Adapter 3WN6-DP/3WN6 (0.4 m) for 3WN6 draw-out circuit-breaker, comprising one SUB-D socket
and free cable ends, and including microswitch (circuit-breaker detection signaling switch) and
mounting materials.
Order number:
12
This assumes that conventional copper conductors are used for PROFIBUS-DP. If fiber optic
conductors are used, converters from fiber optic to copper conductors must be fitted.
Version 1.0 (05/98)
2
) and an earth terminal (order no. 8WA1001-1PF00) which is mounted on the
3WX3645-3JA00
3WX3645-3JB00
© Copyright Siemens AG 1998. All rights reserved.
3WN6 Circuit-Breakers
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