multi - mode mains module burst fired or phase angle zax27a x10646 installation l n connections shown for manual control 1 8 9 13 10 12 zax 27a 10k 5k pot 0v 5v dc 0v sw1 l o a d t2 t1 g mode selection sw1 (on) = phase angle sw1 (off) = burst fire hs fuse introduction t h e z a x 2 7 a p r o v i d e s a c c u r a t e a n d p r e c i s e m a i n s c o n t r o l i n b o t h b u r s t f i r e o r p h a s e a n g l e c o n t r o l m o d e s o f o p e r a t i o n . t h i s p r i n t e d c i r c u i t b o a r d f i r i n g c i r c u i t i s c a p a b l e o f d r i v i n g a n e x t e r n a l t r i a c o r t h y r i s t o r p a i r p o w e r d e v i c e s f o r a n y l o a d r a t i n g . a d d i t i o n a l f e a t u r e s a l s o i n c l u d e a n u n c o m m i t t e d o p - a m p , w h i c h m a y b e u s e d a s a n error amplifier or comparator for or closed loop (feedback) control, applications v i r t u a l l y a l l r e s i s t a n c e h e a t e r s i n c l u d i n g o v e n s , e l e c t r i c f u r n a c e s , m o u l d e r s , d r y e r s , s m e l t e r s , h e a t i n g t a p e s , stress relieving, space heating and heating mantles. this is unsuitable for use on inductive loads. main features dual mode control capability. (phase angle or burst fire) soft start delay function output overload & temperature protection current limit micr oprocessor control compatibility 5kv input and supply isolation suitable for slave firing triacs or scr pairs warning 1. this unit requires fusing. this should be a fast acting semiconductor - type (ff5a) fuse placed in series with th e l i v e ( 240v input ) supply lead. 2. all hazardous live terminals - isolate supply before commencing any installation work.
order code: state part number: zax27a specificatio ns high voltage side low voltage side mains voltage 2 3 0v ac 10% @ 50hz supply voltage 5v supply current 30ma (max.) supply current 30ma (max.) max. rms load current 5a (max.). control input range 0 to 1v or 0 to 5v load power range 10w (min.); 1kw (max.) inhibit high logic >4v over temp. shut down 90oc inhibit low logic <3v over temp. reset 60oc supply voltage reje ction 0.5%/v isolation classification class ii temperature coefficient 0.25%/oc max. cable entry 2.5mm 2 operating temperature 0 to +65oc dimensions overall (max.) 21mm (h), excluding leads x 33mm (w) x 33mm (d) fusing: a semiconductor (fast ac t i n g ) t y p e f u s e i s s u p p l i e d a s s t a n d a r d f o r u n i t p r o t e c t i o n . o n i n i t i a l s w i t c h o n s o m e loads may need an increased factor of safety (f of s) for unit and/or device protection. for spares or replacements contact our sales desk. ce marking this product f a m i l y c a r r i e s a c e m a r k i n g . t h e s e p h a s e a n g l e c o n t r o l l e r s n e e d a s u i t a b l e r e m o t e f i l t e r . f o r information see recommendation section and contact our sales desk. recommendation s and safety guidelines other docume nts available on request, which may be appropriate for your applications. code identity description x2 0008 zax27a multi - mode mains module instruction manual x10229 rfi filtering recommendation - addressing emc directive x10213 ita interaction, uses for p hase angle and for burst fire control. x10255 sra safety requirements - addressing the low voltage directive including : - t h e r m a l d a t a / c o o l i n g ; l i v e p a r t s w a r n i n g & e a r t h requirements; fusing recommendations. ap02/4 cos ual conditions of sale note it is recommended that installation and maintenance of this equipment should be done with reference to the current edition of the i.e.e. wiring regulations (bs7671) by suitably qualified / trained personnel. the regulations contain important requirements regarding safety of electrical equipment. (for international standards refer to i.e.c. directive iec950). u n i t e d a u t o m a t i o n l i m i t e d 1southport business park tel: 0044 (0) 1704 516500 main kew tel: 0044 (0) 1704 516516 sales sou thport, pr8 4hq fax: 0044 (0) 1704 516501 england enquiry@united - automation.com www.united - automation.com page no. 2 of 2 issue 2 31/03/05
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