Siemens SIMATIC DIAGNOSTIC REPEATER 6ES7972-0AB01-0XA0 Manuel page 121

Maintenance
If repair is necessary, the affected component must be sent to the production location.
Repairs can only be carried there.
Special Conditions
1. The diagnostic repeater must be installed in a cabinet or metal housing. These must
comply with the IP 54 degree of protection as a minimum. The environmental
conditions under which the equipment is installed must be taken into account. There
must be a manufacturer's declaration for zone 2 available for the housing (in
accordance with EN 50021).
2. If a temperature of > 70 °C is reached in the cable or at the cable entry of this
housing under operating conditions, or if a temperature of > 80 °C can be reached at
the junction of the conductors under operating conditions, the temperature-related
properties of the cables must correspond to the temperatures actually measured.
3. The cable entries used must comply with the required IP degree of protection and
Section 7.2 (in accordance with EN 50021).
4. All devices (including switches, etc.) that are connected to the inputs and outputs of
fail-safe signal modules must be approved for EEx nA or EEx nC explosion
protection.
5. Steps must be taken to ensure that the rated voltage through transients cannot be
exceeded by more than 40 %.
6. Ambient temperature range: 0° C to 60° C
7. A sign containing the following warning must be put up inside the housing in an easily
visible position when the housing is opened:
Warning
The housing can only be opened for a short time (e.g. for visual diagnostics). If you
do this, do not operate any switches, remove or install any modules or disconnect any
electrical cables (plug-in connections).
You can disregard this warning if you know that the atmosphere is not hazardous (i.e.
there is no risk of explosion).
List of Approved Modules
You will find the list of approved modules on the Internet:
http://www4.ad.siemens.de/view/cs/
Répéteur de diagnostic pour PROFIBUS-DP
A5E00103901-02
Caractéristiques techniques
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