Festo CPX-FB32, Electronic Manual

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3. D i agn o s i s
3 − 17
Fes to P . B E − C PX−FB 32 − E N en 0605N H
3.6 F au l t t r eatment
W ith th e followi ng f a ult s , th e r eac tio n of th e C PX t e r m i na l
de p ends o n th e c o n fi g ur ed r eac tio n of th e mas t e r m o d ul e
and o n th e p a r ame t e ri sed Fa il sa f e se tti ng:
t e l eg r am f a ilur e
mas t e r h as s topp ed
i n t e rruptio n i n th e b u s cab l e .
De p end i ng o n th e p a r ame tri z i ng , th e output s (v a lv es and
e l ec tri c output s ) will be s wit c h ed off (f ac tory se tti ng ),
s wit c h ed o n or r e t a i n th e ir s t a tu s ( see C PX s y s t em man u a l).
W a r nin g
·
M ake s ur e th a t v a lv es and output s a r e put i n to a sa f e
s t a t e if th e f a ult s named o cc ur.
A n i nc orr ec t s t a tu s of th e v a lv es and output s can l ead to
dange rou s s itu a tio ns .
Pl ease n o te
P l ease n ot e th e followi ng if th e output s a r e r ese t a ft e r P LC
s top, fi e l d b u s i n t e rruptio n or f a ult :
S i ng l e−s ol en oi d v a lv es m ov e to th e bas i c po s itio n .
D ou b l e−s ol en oi d v a lv es r ema i n i n th e c urr en t po s itio n .
Mi d− po s itio n v a lv es m ov e to th e m i d− po s itio n ( de p end
i ng o n v a lv e typ e: pr ess uri zed , e xh a u s t ed or b lo cked ).