Communication System Manual 3WN1, 3WS1 Circuit-Breakers
90 Copyright Siemens AG 1998. All rights reserved. Version 1.0 (08/98)
€ Device status LED: green à Device OK
red à Device defective
off → Device switched off
• Interface status LED: green à Both communication interfaces OK
yellow à Communication interface 1 not clear (PROFIBUS-DP)
off à Communication interface 2 not clear (3WN1/3WS1)
red à Communication interfaces both not clear
‚ not configured
ƒ Address switch for PROFIBUS-DP (addresses 0 ... 99)
„ not configured
… Inscription plates
† Earth terminal for cable screens
‡ Power supply terminals
ˆ Communication interface 1: à PROFIBUS-DP (9-pin SUB-D socket)
‰ Communication interface 2: à 3WN1, 3WS1 (9-pin SUB-D socket)
Š not configured
4.5.2 Installation guidelines
4.5.2.1 Installing the interface module
The interface module is designed for installation in a switchgear cubicle (IP20) and can therefore only be
mounted on a standard DIN rail (deep rail in acc. with EN50022)
Installation
• Lower the module onto the DIN rail from above.
• Then swivel it downwards until the slide mechanism on the module snaps onto the rail.
• You may install other modules on the rail to the left and right of the interface module.
• Clearance of at least 5 cm must be provided above and below the module to allow for heat dissipation.
• Connect the standard DIN rail to the equipotential bonding strip of the switchgear cubicle. The
connecting wire must have a cross-section of at least 10 mm
2
.
• Install an earth terminal immediately next to the interface module so that the flexible wire (1.5 mm
2
)
used for screen bonding can be as short as possible.
Deinstallation
• First disconnect the power supply and signal cables.
• Then use a screwdriver to press the slide mechanism on the module downwards.
• Now swivel the module off the DIN rail.