Festo VOFA-B26-T52-M Series, Operating Instructions Manual

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V O F A −...
F e sto V O F A −... 100 4 N H E n g li sh
4 3
1 Safety
General safety information
Note
Loss of the safety function
I f mea s u r e s to h an d le c o mm o n cau s e failu r e s" (CC F) or inc orr ec t l y p e r f or me d
d ia g n ost ic s o f poss i b l y faul ty st a t u s e s a r e n ot obs e rv e d, th e s afe ty func t i o n o f
th e c o n tro l b l o c k can b e im p ai r e d.
· M a k e s u r e th a t th e d e s c r i b e d mea s u r e s f or h an d lin g c o mm o n cau s e
failu r e s" (CC F) a r e obs e rv e d an d th e d ia g n ost ic c ov e r a g e ( D C ) i s ac h ie v e d
( s ee c h a p. 2 an d c h a p. 13 ).
Note
Loss of the safety function
N o n − c o m p liance wi th th e t ec h nical d a t a can lea d to l oss o f th e s afe ty func t i o n .
· C o m p l y wi th th e t ec h nical d a t a .
Note
Danger of injury through squeezing and pushing
I f so len o i d v al v e s a r e s e p a r a t e d wi th vo l t a g e a pp lie d, th e m ov a b le p a rts o f th e
dr i v e c o m po nen ts can e x ecu t e unc o n tro lle d m ov emen ts.
· D i s c o nnec t th e po we r s u pp l y b ef or e yo u ca rry o u t w ork o n th e elec tr ical
e q ui p men t.
Intended use
Th e c o n tro l b l o c k i s in t en d e d f or th e t w o− c h annel c o n tro l o f p neuma t ic dr i v e
c o m po nen ts (e .g.do u b le − ac t in g linea r c y lin d e rs) an d can b e u s e d to im p lemen t
th e f o ll o win g prot ec t i v e mea s u r e s:
Prot ec t i o n a g ain st une xp ec t e d st a rt in g u p ( E N 1037 )
Re v e rs in g o f h a z a rdo u s m ov emen ts if n o a dd i t i o nal h a z a rds can a r i s e d ue to
th e r e v e rs in g m ov emen t