Connecting; Connection Safety Note - Siemens SIPART PS2 Operating Instructions Manual

Connecting

4.1

Connection safety note

Low-voltage supply
When you supply the module in the non-intrinsically safe version with low voltage, you must
be sure to observe the following safety rules before starting work on the device:
1. Isolate the device from power. Use a circuit breaker positioned near the device to do
2. Make sure that the device cannot be switched back on inadvertently.
3. Make sure the device is truly isolated from power.
Assembling the components
For the composition of the components it must be ensured that only positioners and option
modules that are certified for the relevant operating range are combined.
This condition applies in particular to the safe operation of the positioner in the areas of
zone 1, 2 and 22, in which the atmosphere can be potentially explosive. Make sure you
observe the device categories 2 and 3 of the device itself as well as the ones of its option
modules.
Protection against mechanical influences
In order to guarantee the degree of protection IP66/NEMA 4x, you must protect the module
against mechanical influences. This is achieved by selecting a suitable installation location
or by installing a suitable protection device. This required protection applies to the operation
of the module with the following voltages:
• > AC 16 V
• > DC 35 V, low voltage
SIPART PS2 with mechanical limit switch module
Operating Instructions (Compact), 04/2007, A5E01179056-01
DANGER
this.
WARNING
WARNING
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