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Building Technologies
Basic Documentation LMO39…
CC1P7154en
1 Safety notes
15.03.2018
1.5 Connection BCI via integrated jack RJ11
∂
If the BCI (jack RJ11) is not used, protection against electric shock hazard must be
provided (jack must be covered up)
∂
The signal cable AGV50... for the AZL2… or other accessories, for example BCI
OCI410 (plugs into the jack RJ11), must be connected or disconnected only when
the burner control is dead (all-polar disconnection), since the BCI does not ensure
safe separation from mains voltage
∂
The display and operating unit AZL2... is designed for direct connection to the
integrated jack RJ11 at LMO39...
∂
Since the BCI has no safe separation from mains voltage, the signal cable
AGV50..., must conform to certain specifications. Siemens has specified the signal
cable AGV50... for use under the burner hood (see Technical data). When using
signal cable of other manufacture, Siemens’ requirement will not necessarily be met
∂
Do not lay the signal cable AGV50... from the LMO39… to the AZL2… together with
other cables (especially high-voltage ignition cable)
∂
Service operation with a longer signal cable from LMO39… to AZL2…, or from
LMO39… to OCI410:
If a longer signal cable is required for service work for example (short-time,
<24 hours), note that above usage under the burner hood no longer applies and, for
this reason, the signal cable can be subjected to increased mechanical stress. In
that case, extra cable sheathing is required (e.g. heat shrink tubing)
∂
Both the signal cable AGV50... and the AZL2… must be shipped and stored so that
no damage due to dust and water can occur when used in the plant later on
∂
To ensure protection against electric shock hazard, make certain that, prior to
switching on power, the signal cable AGV50... is correctly connected to the AZL2…
∂
The AZL2… must be used in a dry and clean environment
Connection display and operating unit AZL2...
Connect the AZL2... with the interface at your LMO39..., follow the example design
below.
LMO39...
AZL2...
7154z03e/0212
Signal cable
Figure 2: Connection display and operating unit AZL2...