Siemens SIPART PS2 Betriebsanleitung Seite 40

Operating instruction
NOTICE
The positioner will be equipped at the factory with the required option modules in accordance
with the customer's order, and delivered complete. Retrofitting an option module should only
be carried out by Customer Services.
The positioner must -- particularly in damp environments -- be installed in such a way that the
positioner shaft cannot freeze in low ambient temperatures.
CAUTION
!
Never clean the positioner with high--pressure water cleaning apparatus because the protection
type IP65 does not have sufficient protection for this.
It is essential that the following sequence is observed during assembly to avoid injuries or
mechanical damage to the positioner/extension kit:
1. Mechanical fitting of positioner
2. Connection of electric power supply
3. Connection of pneumatic supply
4. Putting into operation
CAUTION
The operating keys must be covered to prevent liquid getting in.
In addition you must always ensure that no water can penetrate through an open housing or screw joint. This can
occur when the positioner cannot not be assembled and connected immediately on site.
In general the positioner may only be operated with dry compressed air. Therefore use the usual water separator.
In extreme cases, an additional drying unit may even be required. This is particularly important when the positioner
is operated at low ambient temperatures.
For part-turn actuators that are exposed to strong acceleration forces or vibrations, please use a sufficiently stable
console (e. g. sheet thickness > 4mm with backing) and the extension kit "linear actuator" or the integrated
mounting for linear actuators.
Friction clutch
For explosion proof versions of positioners, the housing may not be opened in a potentially explosive atmosphere.
The shaft is thus equipped externally with an additional friction clutch. Only the external friction clutch may be
adjusted.
NOTICE
for explosion--proof encapsulations:
Only adjust the external friction clutch. The internal friction clutch is fixed and, for the explosion--
proof version must not be adjusted.
38
see Chapter 3, page 37 (depending on version)
see Chapter 5, page 45
see Chapter 6, page 47
see Chapter 7, page 49
SIPART PS2 EEx d FF
A5E00351419--01