Maintaining And Cleaning Afd4 / Afd4 (Fm) / Afd8 And Afs - Siemens SIMATIC AFD4 Product Information

Installing and connecting

2.6 Maintaining and cleaning AFD4 / AFD4 (FM) / AFD8 and AFS

2.6 Maintaining and cleaning AFD4 / AFD4 (FM) / AFD8 and AFS
Permitted activities in hazardous areas
The table below describes which maintenance activities are permitted on AFD4 / AFD4 (FM)
/ AFD8 / AFS during operation.
Explosion hazard
Zone 2:
You may open the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS briefly for the
permitted maintenance work.
Zone 22:
You must not open the enclosure of the AFD4 / AFD4 (FM) / AFD8 / AFS in areas with
dust.
Table 2- 3
Activities
Maintenance during opera-
tion (visual checks)
Cleaning
Maintenance during operation
Carry out maintenance every 6 months in the hazardous area.
Maintenance of the AFD4 / AFD4 (FM) / AFD8 / AFS is basically restricted to visual
inspections. The AFD4 / AFD4 (FM) / AFD8 / AFS may be in operation during this.
Zone 2
Check that the cable entries and the grounding
terminal of the enclosure are sealed and intact.
Check whether there is any water or dust in-
side the enclosure. If there is, find out how it
got there.
Check that the wiring is secure (connectors,
cables).
Read the safety instructions in the section
Safety instructions for connection (Page 14).
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DANGER
Permitted activities in hazardous areas
Zone 2 Zone 22
allowed Warning:
The enclosure of the AFD4 / AFD4 (FM) / AFD8 /
AFS must not be opened for this activity in areas
with dust.
allowed Not permitted
Zone 22
Check that the cable entries and the grounding
terminal of the enclosure are sealed and intact.
Warning:
It is not permitted to open the enclosure of the AFD4
/ AFD4 (FM) / AFD8 / AFS.
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Active field distributors AFD4, AFD4 (FM), AFD8 and AFS
Product Information, 02/2015, A5E03775304-AC