Festo SBO*-M-* Series, Electronic Manual

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3. In s t alla t io n
3 − 5
F es t o P .B E−S BO −M−EN e n 0511 N H
3.1.1 S elec t i ng th e p o w e r un i t
Warning
·
In o rd e r t o pr o v i d e th e elec tr ic p o w e r s upp l y, u se o n l y
PEL V circuits as p e r IE C /DIN EN 6020 4− 1 (Pr o t ec t i v e
Extr a −L o w Vol t a g e , PEL V ) .
T a k e i nt o acco unt also th e g e n e r al r e qu i r eme nt s f o r
PEL V ci r c u i t s as p e r IE C /DIN EN 6020 4− 1.
·
U se o n l y power packs wh ic h gu a r a nt ee r elia b le elec tr i
cal isola t io n o f th e o p e r a t i ng v ol t a g e as p e r IE C /DIN
EN 6020 4− 1.
B y th e u se o f PEL V p o w e r un i t s , pr o t ec t io n a g ai n s t elec tr ic
s h oc k (pr o t ec t io n a g ai n s t d i r ec t a nd i nd i r ec t co nt ac t) is
gu a r a nt ee d i n acco rd a n ce w i th IE C /DIN EN 6020 4− 1
( elec tr ical e qu i p me nt o f mac h i n es , g e n e r al r e qu i r eme nt s ) .
R ecomme nd a t io n: U se a se p a r a t e close d− loo p p o w e r un i t
wh ic h d oes n o t h a v e t o s upp l y a ny o th e r d e v ices. Y o u w ill
th e n ac h ie v e th e gr ea t es t p ossi b le r esis t a n ce t o i nt e rf e r e n ce.
S im p le 2 4 V tr a n s f o r me r s w i th r ec t i f ie r a nd S ie b el k o "
ac h ie v e o utput v ol t a g es o f 2 8 V a nd mo r e w i th lo w loa d s.
Co rr ec t o p e r a t io n ca n o n l y b e gu a r a nt ee d i f th e p e r mi tt e d
o p e r a t i ng v ol t a g e r a ng e is
not
e x cee d e d ( see T ec hn ical
Sp eci f ica t io n s i n a pp e nd i x A . 4) .