ESAB LHN 250, Caddy® Professional 250 Manuale utente
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- Sistema di saldatura
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Valid for serial no. 747, 011, 2200457 552 127 020516
Caddy 250
LHN 250
104
Instruction manual Èíñòðóêöèÿ ïî ýêñïëóàòàöèè
-- 2 --
Rights reserved to alter specifications without notice.
Îñòàâëÿåì çà ñîáîé ïðàâî èçìåíÿòü ñïåöèôèêàöèþ áåç ïðåäóïðåæäåíèÿ.
Ðóññêèé 3...............................................
ENGLISH 9..............................................
Ðóññêèé
TOCr
-- 3 --
1 ÒÅÕÍÈÊÀ ÁÅÇÎÏÀÑÍÎÑÒÈ 4........................................
2 ÂÂÅÄÅÍÈÅ 4.......................................................
3 Òåõíè÷åñêèå äàííûå 5..............................................
3.1 Ñîñòàâ îáîðóäîâàíèÿ 5....................................................
3.2 Îáëàñòü ïðèìåíåíèÿ 6.....................................................
4ÓÑÒÀÍÎÂÊÀ 6......................................................
4.1 Ðàáî÷åå ìåñòî 6..........................................................
4.2 Ïîäêëþ÷åíèå 6...........................................................
5 ÐÀÁÎÒÀ ÓÑÒÀÍÎÂÊÈ 7..............................................
5.1 Çàùèòà îò ïåðåãðóçîê 7....................................................
6 Òåõíè÷åñ êîå îáñëóæèâàíèå 7.......................................
6.1 ×èñòêà 7...................................................................
7 ÄÈÀÃÍÎÑÒÈÊÀ ÍÅÈÑÏÐÀÂÍÎÑÒÅÉ 8...............................
8 ÇÀÊÀÇ ÇÀÏÀÑÍÛÕ ×ÀÑ ÒÅÉ 8......................................
ÑÕÅÌÀ 15..............................................................
ÑÏÈÑÎÊ ÇÀÏÀÑÍÛÕ ×ÀÑÒÅÉ 17........................................
ÄÎÏÎËÍÈÒÅËÜÍÛÅ ÏÐÈÍÀÄËÅÆÍÎÑÒÈ 28...........................
bh20d02r
-- 4 --
1 ÒÅÕÍÈÊÀ ÁÅÇÎÏÀÑÍÎÑÒÈ
Ïåðåä íà÷àëîì ìîíòàæà è ýêñïëóà òàöèè âíèìàòåëüíî èçó÷èòå ñîî òâåòñòâóþùèå èíñòðóêöèè.
ÇÀÙÈÒÈÒÅ ÑÅÁß È ÄÐÓÃÈÕ!
ÎÑ ÒÎÐÎÆÍÎ!
ÄÓÃÎ
Â
Àß Ñ
Â
ÀÐÊÀ È ÐÅÇÊÀ ÎÏÀÑÍÛ ÊÀÊ ÄËß ÈÑÏÎ ËÍÈÒÅËß ÐÀÁÎÒ, ÒÀÊ È ÄËß
ÏÎÑÒ ÎÐÎÍÍÈÕ ËÈÖ. ÒÐÅÁÓÉÒÅ ÑÎÁËÞÄÅÍÈÅ
Â
ÑÅÕ ÏÐÀ
Â
ÈË ÁÅÇÎÏÀÑÍÎÑÒÈ,
ÄÅÉÑÒ
Â
ÓÞÙÈÕ ÍÀ ÎÁÚÅÊÒÅ, ÊÎÒÎÐÛÅ ÄÎËÆÍÛ Ó×ÈÒÛ
Â
ÀÒÜ Ñ
Â
ÅÄÅÍÈß ÎÁ ÎÏÀÑÍÎÑÒßÕ,
ÏÐÅÄÑÒÀ
Â
ËÅÍÍÛÅ ÈÇÃÎÒÎ
Â
ÈÒÅËÅÌ Ñ
Â
ÀÐÎ×ÍÎÃÎ ÎÁÎÐÓÄÎ
Â
ÀÍÈß.
ÎÏÀÑÍÎÑÒÜ ÑÌÅÐÒÅËÜÍÎÃÎ ÏÎÐÀÆÅÍÈß ÝËÅÊÒÐÈ×ÅÑÊÈÌ Ò ÎÊÎÌ.
S Ñâàðî÷íûé àãðåãàò óñòàíàâëèâàåòñÿ è çàçåìëÿåòñÿ â ñîîòâåòñòâèè ñ äåéñòâóþùèìè íîðìàìè è
ïðàâèëàìè.
S Íå äîïóñêàéòå êîíòàêòà íàõîäÿùèõñÿ ïîä íàïðÿæåíèåì äåòàëåé è ýëåêòðîäîâ ñ íåçàùèùåííûìè
÷àñòÿìè òåëà, ìîêðûìè ðóêàâèöàìè è ìîêðîé îäåæäîé.
S Îáåñïå÷üòå ýëåêòðè÷åñêóþ èçîëÿöèþ îò çåìëè è ñâàðèâàåìûõ äåòàëåé.
S Îáåñïå÷üòå ñîáëþäåíèå áåçîïàñíûõ ðàáî÷èõ ðàññòîÿ íèé.
ÄÛÌÛ È ÃÀÇÛ ìîãóò áûòü îïàñíû äëÿ ÷åëîâåêà
S Èñêëþ÷èòå âîçìîæíîñòü âîçäåéñòâèÿ äûìîâ.
S Äëÿ èñêëþ÷åíèÿ âäûõàíèÿ äûìîâ âî âðåìÿ ñâàðêè îðãàíèçóåòñÿ îáùàÿ âåíòèëÿöèÿ ïîìåùåíèÿ, à
òàêæå âûòÿæíàÿ âåíòèëÿöèÿ èç çîíû ñâàðêè.
ÈÇËÓ×ÅÍÈÅ ÄÓÃÈ âûçûâàåò ïîðàæåíèå ãëàç è îæîãè êîæè.
S Çàùèòèòå ãëàçà è êîæó. Äëÿ ýòîãî èñïîëüçóéòå çàùèòíûå ùèòêè, öâåòíûå ëèíçû è çàùèòíóþ
ñïåöîäåæäó.
S Äëÿ çàùèòû ïîñòîðîííèõ ëèö ïðèìåíÿþòñÿ çàùèòíûå ýêðàíû èëè çàíàâåñè.
ÏÎÆÀÐÎÎÏÀÑÍÎÑÒÜ
S Èñêðû (áðûçãè ìåòàëëà) ìîãóò âûçâàòü ïîæàð. Óáåäèòåñü â îòñóòñòâèè ãîðþ÷èõ ìàòåðèàëîâ
ïîáëèçîñòè îò ìåñòà ñâàðêè.
∅ÓÌ - ×ðåçìåðíûé øóì ìîæåò ïðèâåñòè ê ïîâðåæäåíèþ îðãàíîâ ñëóõà
S Ïðèìèòå ìåðû äëÿ çàùèòû ñëóõà. Èñïîëüçóéòå çàòû÷êè äëÿ óøåé èëè äðóãèå ñðåäñòâà çàùèòû
ñëóõà.
S Ïðåäóïðåäèòå ïîñòîðîííèõ ëèö îá îïàñíîñòè.
ÍÅÈÑÏÐÀ
Â
ÍÎÑÒÈ -- Ïðè íåèñïðàâíîñòè îáðàòèòåñü ê ñïåöèàëèñòàì ïî ñâàðî÷íîìó
îáîðóäîâàíèþ
2 ÂÂÅÄÅÍÈÅ
Âíèìàíèå!
Ýòî óñòðîéñòâî ïðåäíàçíà÷åíî èñêëþ÷èòåëüíî äëÿ ýëåêòðîäóãîâîé ñâàðêè!
Âûïðÿìèòåëü LHN 250 - ÿâëÿåòñÿ òðàíçèñòîðíî-óïðàâëÿåìûì èñòî÷íèêîì
ïèòàíèÿ, ïðåäíàçíà÷åííûì ä ëÿ ðó÷íîé äóãîâîé ñâàðêè (ÌÌÀ), à òàêæå äëÿ
ñâàðêè íåïëàâÿùèìñÿ ýëåêòðîäîì â ñðåäå àðãîíà (TIG) ñ âîçáóæäåíèåì äóãè
ìåòîäîì êàñàíèÿ è î òðûâà.
Ïðèìåíåíèå ñîâðåìåííîé ýëåêòðîíèêè, â òîì ÷èñëå è èíâåðòîðíîé
òåõíîëîãèè, ïîçâîëèëî, íàðÿäó ñ äðóãèìè ïðåèìóùåñòâàìè, îáåñïå÷èòü
áûñòðóþ íàñòðîéêó ïðîöåññà è ïðîâåäåíèå âûñîêîêà÷åñòâåííîé ñâàðêè, à
òàêæå ïîçâîëèëî óìåíüøèòü âåñ è ãàáàðèòû óñòàíîâêè. Ðåìåíü ñëóæèò äëÿ
óäîáñòâà ïåðåíîñà âûïðÿìèòåëÿ íà ïëå÷å ñâàðùèêà è â êà÷åñòâå ðó÷êè â
çàïðàâëåííîì âèäå.
RU
bh20d02r
-- 5 --
3 Òåõíè÷åñêèå äàííûå
ïðè ÏÂ 35%
ïðè ÏÂ 60%
ïðè ÏÂ 100%
250 A/30 V
180A/27V
140A/26V
Äèàïàçîí ðåãóëèðîâàíèÿ ñâàðî÷íîãî
òîêà (ïëàâíî ðåãóëèðóåòñÿ)
4-250 A
Íàïðÿæåíèå õîëîñòîãî õîäà 50-80 V
Ïàðàìåòðû ñåòè
íàïðÿæåíèå
÷àñòîòà
ïðåäîõðàíèòåëü
ñå÷åíèå ñåòåâîãî êàáåëÿ
400 Â ïåðåì. ò îê
50/60 Hz
16 A*
4x1,5 ìì
2
**
Êëàññ çàùèòû IP 23
Êëàññ ïðèìåíåíèÿ
Ãà á à ð è ò û L x W x H 472x142x256
Âåñ 11 ê ã
Ïðè ñâàðêå íà òîêàõ äî 100 A äîñòàòî÷íî ïðåäîõðàíèòåëÿ 10 A..
** Ñå÷åíèå ñåò åâîã î êàáåëÿ ñîãëàñíî øâåäñêèõ ñò àíäàðòîâ.
Ðàáî÷èé öèêë
Ðàáî÷èé öèêë ïðåäñòàâëÿåò ñîáîé äîëþ (â %%) äåñÿòèìèíóòíîãî èíòåðâàëà, â òå÷åíèå
êîòîðîé ìîæíî ïðîèçâîäèòü ñâàðêó ïðè îïðåäåëåííîé íàãðóçêå áåç ïåðåãðóçêè
èñòî÷íèêà ïèòàíèÿ ñâàðî÷íîãî àãðåãàòà.
Ê ëàññ çîíû óñòàíîâêè
Ýòîò ñèìâîë îçíà÷àåò, ÷òî èñòî÷íèê ïèòàíèÿ ïðåäíàçíà÷åí äëÿ èñïîëüçîâàíèÿ â çîíàõ
ñ ïîâûøåííîé îïàñíîñòüþ ïîðàæåíèÿ ýëåêòðîòîêîì.
Êëàññ êîæóõà
Íîðìû IP óêàçûâàþò êëàññ êîæóõà, ò.å., ñòåïåíü çàùèòû îò ïðîíèêíîâåíèÿ òâåðäûõ
îáúåêòîâ è âîäû. Îáîðóäîâàíèå ñ ìàðêèðîâêîé IP 23 ïðåäíàçíà÷åíî äëÿ íàðóæíîé è
âíóòðåííåé óñòàíîâêè.
3.1 Ñîñòàâ îáîðóäîâàíèÿ
Âûïðÿìèòåëü LHN 250 èìååò ðàçú¸ì ä ëÿ ïóëüòà äèñòàíöèîííîãî óïðàâëåíèÿ,
ðàáîòà êîòîðîãî àêòèâèðóåòñÿ àâòîìàòè÷åñêè ïðè åãî ïîäêëþ÷åíèè.
Âíèìàíèå! Äëÿ àâòîçàïóñêà äèñòàíöèîííîãî óïðàâëåíèÿ êîíòàêòû L è M áëîêà
ÄÓ äîëæíû áûòü ñîåäèíåíû.
 êîìïëåêò ïîñòà âêè LHN 250 âõîäèò: 3 ì ñåòåâîãî êàáåëÿ, ïî 5ì ñâàðî÷íîãî è
âîçâðàòíîã î êàáåëÿ ñ ðàçú¸ìàìè òèïà ÎÊÑ äëÿ áûñòðîé ñìåíû ïîëÿðíîñòè.
Çàâîäñêîé íîìåð èçãîòîâèòåëÿ óêàçàí íà ôèðìåííîé òàáëè÷êå.
RU
bh20d02r
-- 6 --
3.2 Îáëàñòü ïðèìåíåíèÿ
LHN 250 ïðåäíàçíà÷åí äëÿ ñâàðêè íà ïîñòîÿííîì òîêå áîëüøèíñòâà
ìàëîóã ëåðîäèñòûõ, ëåãèðîâàííûõ, íåðæàâåþùèõ ñòàëåé è ÷óãóíà.
LHN 250 ïîçâîëÿåò èñïîëüçîâàòü øòó÷íûå ýëåêòðîäû îò j1.6 äî j 5 ìì.
Ñâàðêà íåïëàâÿùèìñÿ ýëåêòðîäîì â ñðåäå àðãîíà (TIG)
TIG ñâàðêà îñîáåííî ýôôåêòèâíà ïðè âûñîêèõ òðåáîâàíèÿõ ê êà÷åñòâó
ñâàðíîãî øâà, à òàêæå ïðè ñâàðêå òîíêîëèñòîâûõ êîíñòðóêöèé. Äëÿ ñâàðêè
ìåòîäîì TIG óñòàíîâêó Caddy íåîáõîäèìî äîîñíàñòèòü: ãîðåëêîé TIG ñ
ãàçîâûì êëàïàí îì, áà ëëîí îì Ar, ðåãóëÿòîðîì Ar, âîëüôðàìîâûì
íåïëàâÿùèìñÿ ýëåêòðîäîì è ïðè íåîáõîäèìîñòè ïðèñà äî÷íûìè ïðóòêàìè.
Äóãà âîçáóæäàåòñÿ çà ñ÷¸ò êàñàíèÿ è î òðûâà ýëåêòðîäà îò èçäåëèÿ.
4ÓÑÒÀÍÎÂÊÀ
Ââîä â ýêñïëóàòàöèþ äîëæåí ïðîèçâîäèòüñÿ êâà ëèôèöèðîâàííûì
ñïåöèàëèñòîì.
ÂÍÈÌÀÍÈÅ!
Íàñòîÿùåå èçäåëèå ïðåäíàçíà÷åíî äëÿ ïðîìûøëåííîãî èñïîëüçîâàíèÿ. Ïðè
èñïîëüçîâàíèè â á ûòîâûõ óñëîâèÿõ îíî ìîæåò ñîçäàâàòü ðàäèî÷àñòîò íûå ïîìåõè.
Ïîëüçîâàòåëü îòâå÷àåò çà ïðèíÿòèå ñîîòâåòñòâóþùèõ ìåð ïðåäîñòîðîæíîñòè.
4.1 Ðàáî÷åå ìåñòî
Óñòàíîâêàäîëæíàðàñïîëàãàòüñÿâóäîáíîìäëÿðàáîòûìåñòå, íåïåðåêðûâàÿäîñòóïà
âîçäóõà â âåíòèëÿöèîííûå ñå÷åíèÿ.
4.2 Ïîäêëþ÷åíèå
Äëÿ ðàáîòû ñ ìàêñèìàëüíîé íàãðóçêîé íåîáõîäèìî óñòàíîâèòü ïëàâêèå
ïðåäîõðàíèòåëè 16A.
LHN 250 ñíàáæåí óñòðîéñòâîì êîìïåíñàöèè êîëåáàíèé ïèòàþùåé ñåòè, ò.å.
ïðè êîëåáàíèÿõ íàïðÿæåíèÿ ñåòè +/_10 % êîëåáàíèå â ñâàðî÷íîé ñåòè íå
ïðåâûñÿò +/_0,2 %.
Ïàðàìåòðû ñå òè äëÿ LHN 250: 400V, 3 ôàçû, 50 Hz èëè 60 Hz.
RU
bh20d02r
-- 7 --
5 ÐÀÁÎÒÀ ÓÑÒÀÍÎÂÊÈ
Îáùèå ïðàâèëà òåõíèêè áåçîïàñíîñòè ïðè ðàáîòå ñ îáîðóäîâàíèåì
ïðèâîäÿòñÿ íà ñòð. 4. Ïðî÷òèòå èõ äî èñïîëüçîâàíèÿ îáîðóäîâàíèÿ!
Âêëþ÷åíèå óñòàíîâêè ïðîèçâîäèòñÿ âûêëþ÷àòåëåì íà çàäíåé
ñòåíêå LHN 250. Ïðè ý òîì çàãîðàåòñÿ áåëàÿ êîíòðîëüíàÿ ëàìïà
íà ïåðåäíåé ïàíåëè.
1. Ƹëòàÿ ëàìïà ï åðåãðóçêè
2. Ðó÷êà ïëàâíîé ðåãóëèðîâêè ñâàðî÷íîãî òîêà â ïðåäåëàõ
4-250 A
3. Áåëàÿ êîíòðîëüíàÿ ëàìïà
4. Ðàçú¸ì ïóëüòà äèñòàíöèîííîãî óïðàâëåíèÿ
Âíèìàíèå!
Íåîáõîäèìî èñïîëüçîâàòü ò îëüêî ðåê îìåíäóåìûå ñå÷åíèÿ ñâàðî÷íîãî è
âîçâðàòíîãî êàáåëÿ (íå ìåíå å 35 ìì
2
)
(Ñì. Ñïèñîê çàïàñíûõ ÷àñòåé).
5.1 Çàùèòà îò ïåðåãðóçîê
Äëÿ çàùèòû îò ïåðåãðåâà âûïðÿìèòåëè LHN 250 èìååò âñòðîåííîå
òåðìîðåëå, ñðàáàòûâàþùåå ïðè ïðåâûøåíèè òåìïåðà òóðû âûøå äîïóñòèìîé
âåëè÷èíû. Ïðè ýòîì îáåñòî÷èâàþòñÿ ñâàðî÷íûå êàáåëè è çàã îðàåòñÿ
îðàíæåâàÿ êîíòðîëüíàÿ ëàìïà. Ïðè ïîíèæåíèè òåìïåðàòóðû òåðìîðåëå
àâòîìàòè÷åñêè âêëþ÷àåò âûïðÿìèòåëü.
6 Òåõíè÷åñêîå îáñëóæèâàíèå
Ïðèìå÷àíèå:
Âñå ãàðàíòèéíûå îáÿçàòåëüñòâà ïîñòàâùèêà ò åðÿþò ñèëó â ñëó÷àå ïîïûòêè
ïîêóïàòåëÿ ñàìîñòîÿòåëüíî óñòðàíèòü êàêóþ-ëèáî íåèñïðàâíîñòü ìàøèíû â
òå÷åíèå ãàðàíòèéíîãî ïåðèîäà.
6.1 ×èñòêà
LHN 250 íå òðåáóåò ñïåöèà ëüíîãî îáñëóæèâàíèÿ. Îáû÷íî äîñòàòî÷íî
ïðîäóâàòü óñòàíîâêó ÷èñòûì ñæàòûì âîçäóõîì è î÷èùàòü âîçäóøíûé ôèëüòð.
Åñëè óñòàíîâêà ýêñïëóàòèðóåòñÿ â î÷åíü çàãðÿçíåííûõ óñëîâèÿõ ôèëüòð íà äî
î÷èùàòü êàê ìîæíî ÷àùå.
RU
bh11d001
bh20d02r
-- 8 --
7 ÄÈÀÃÍÎÑÒÈÊÀ ÍÅÈÑÏÐÀÂÍÎÑÒÅÉ
Âèä íåèñïðàâíîñòè Ìåðû ïî èõ óñòðàíåíèþ
Íå âîçáóæäàåòñÿ äóãà îò ñâàðî÷íîãî
èñòî÷íèêà ïèòàíèÿ
S Óáåäèòåñü, ÷òî ñåòåâîé âûêëþ÷àòåëü
âê ëþ÷åí.
S Ïðîâåðüòå ïðàâèëüíîñòü ñîåäèíåíèÿ
ñâàðî÷íûõ êàáåëåé.
S Óáåäèòåñü, ÷òî â åëè÷èíà ñâàðî÷íîãî
òîêà óñòàíîâëåíà ïðàâèëüíî.
 ïðîöåññå ñâàðêè ïðîèçîøëî îòêëþ÷åíèå
èñòî÷íèêà ïèòàíèÿ.
S Ïðîâåðüòåíåðàáîòàëîëèòåðìîðåëå
(çàãîðåëàñü îðàíæåâàÿ ëàìïà íà
ïåðåäíåé ïàíåëè).
S Ïðîâåðüòå ïðåäîõðàíèòåëü.
Òåðìîðåëå ñðàáàòûâàåò î÷åíü ÷àñòî. S Ïðîâåðüòåíåçàáèòëèâîçäóøíûé
ôèëüòð.
S Óáåäèòåñü, ÷òî ñâàðêà íå âåëàñü íà
çàâûøåííûõ ðåæèìàõ. (ïåðåãðóçêà
èñòî÷íèêà ïèòàíèÿ).
Íèçêîå êà÷åñòâî ñâàðêè. S Ïðîâåðüòå ïðàâèëüíîñòü ïîäêëþ÷åíèÿ
ñâàðî÷íûõ êàáåëåé.
S Óáåäèòåñü, ÷òî â åëè÷èíà ñâàðî÷íîãî
òîêà óñòàíîâëåíà ïðàâèëüíî.
S Ïðîâåðüòå ñîñòîÿíèå øòó÷íûõ
ýëåêòðîäîâ.
8 ÇÀÊÀÇ Ç ÀÏÀÑÍÛÕ ×ÀÑÒÅÉ
Çàïàñíûå ÷àñòè çàêàçûâàþòñÿ ÷åðåç áëèæàéøåå ïðåäñòàâèòåëüñòâî ESAB,
à äðåñ êîòîðîãî ìîæíî íàéòè íà ïîñëåäíåé ñòðàíèöå îáëîæêè.
Ïðè çàêàçå çàïàñíûõ ÷àñòåé óêàæèòå òèï ìàøèíû è åå íîìåð, à òàêæå
íàèìåíîâàíèå äåòàëè è åå íîìåð èç ïåðå÷íÿ çàïàñíûõ ÷àñòåé. Ýòî óïðîñòèò
äîñòàâêó è îáåñïå÷èò ïîëó÷åíèå òðåáóåìûõ çàïàñíûõ ÷àñòåé.
RU
ENGLISH
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TOCe
1 DIRECTIVE 10........................................................
2SAFETY 10...........................................................
3 INTRODUCTION 10...................................................
4 TECHNICAL DATA 11.................................................
4.1 Equipment 11................................................................
4.2 Field of application 12.........................................................
5 INSTALLATION 12....................................................
5.1 Placing 12...................................................................
5.2 Connection 12...............................................................
6 OPERATION 13.......................................................
6.1 Overload protection 13........................................................
7 MAINTENANCE 13....................................................
7.1 Cleaning 13.................................................................
8 FAULT TRACING 14...................................................
9 ORDERING OF SPARE PARTS 14......................................
DIAGRAM 15............................................................
SPARE PARTS LIST 17...................................................
ACCESSORIES 28.......................................................
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1 DIRECTIVE
DECLARATION OF CONFORMITY
Esab Welding Equipment AB, 695 81 Laxå, Sweden, gives its unreserved guarantee
that welding power source LHN 250 from serial number 747 complies with standard
EN 60974--1, in accordance with the requirements of directive (73/23/EEA) and ad-
dendum (93/68/EEA), and standard EN 50199 in accordance with the requirements
of directive (89/336/EEA) and addendum (93/68/EEA).
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --------
Paul Karlsson
Managing Director
Esab Welding Equipment AB
695 81 LAXÅ
SWEDEN Tel: + 46 584 81000 Fax: + 46 584 12336
Laxå 97--11--10
2SAFETY
WARNING
READ AND UNDERSTAND THE INSTRUCTION MANUAL BEFORE INSTALLING OR OPERATING.
ARC WELDING AND CUTTING CAN BE INJURIOUS TO YOURSELF AND OTHERS. TAKE PRECAU-
TIONS WHEN WELDING. ASK FOR YOUR EMPLOYER’S SAFETY PRACTICES WHICH SHOULD BE
BASED ON MANUFACTURERS’ HAZARD DATA.
ELECTRIC SHOCK -- Can kill
S Install and earth the welding unit in accordance with applicable standards.
S Do not touch live electrical parts or electrodes with bare skin, wet gloves or wet clothing.
S Insulate yourself from earth and the workpiece.
S Ensure your working stance is safe.
FUMES AND GASES -- Can be dangerous to health
S Keep your head out of the fumes.
S Use ventilation, extraction at the arc, or both, to take fumes and gases away from your breathing zone
and the general area.
ARC RAYS -- Can injure eyes and burn skin.
S Protect y our eyes and body. Use the correct welding screen and filter lens and wear protective
clothing.
S Protect bystanders with suitable screens or curtains.
FIRE HAZARD
S Sparks (spatter) can cause fire. Make sure therefore that there are no inflammable materials nearby.
NOISE -- Excessive noise can damage hearing
S Protect y our ears. Use earmuffs or other hearing protection.
S Warn bystanders of the risk.
MALFUNCTION -- Call for expert assistance in the event of malfunction.
PROTECT YOURSELF AND OTHERS!
3 INTRODUCTION
Note! This product is solely intended for arc welding.
GB
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The LHN 250 are one transistor controlled welding power source designed for
welding with coated electrodes and for T IG welding (touch start).
The advanced electronics provide rapid control response, low power demand and
excellent welding characteristics. Inverter technology contributes to low weight and
compact dimensions of the units.
The rounded slimline shape of the unit makes it comfortable to carry. The strap can
be folded to serve as a carrying handle, or fully extended to serve as a shoulder
strap.
4 TECHNICAL DATA
Performance:
at 35% duty cycle
at 60% duty cycle
at 100% duty cycle
250 A/30 V
180 A/27 V
140 A/26 V
Setting range continuously variable 4--250 A
Open circuit voltage 50--80 V
Mains supply:
voltage
frequency
fuse
mains cable, area
400 V AC
50/60 Hz
16 A*
4x1,5 mm
2
**
Enclosure class IP 23
Application class
Dimensions L x W x H 472x142x256
Weight 11 kg
*When welding below 100 A a 10 A slow fuse is adequate..
**Power cable ratings complies with Swedish regulations..
Duty cycle
The duty cycle refers to the time as a percentage of a ten--minute period that you can weld at a cer-
tain load without overloading the welding power source.
Application class
The symbol indicates that the power source is designed for use in areas with increased
electrical hazard.
Enclosure class
The IP code indicates the enclosure class, i. e. the degree of protection against penetration by solid
objects or water. Equipment marked IP 23 is designed for indoor and outdoor use.
4.1 Equipment
LHN 250 is equipped with a remote control socket which activates automatically
when a remote control device is connected. NOTE! The contact pins L and M m ust
be strapped in the remote device’s connection cable for automatic activation to
function.Theinverterissuppliedwitha3meterlongmainscable.
LHN 250 is delivered with 5 meter long welding and return cables. T hese are
attached to cable connectors allowing quick change of polarity.
The manufacturer’s serial number is stamped on the rating plate.
GB
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4.2 Field of application
LHN 250 supply direct current, which allows you to weld most alloyed and
non--alloyed steels, stainless steels and cast iron. With the LHN 250 you can use
coated electrodes from ∅1.6 to ∅ 5 mm.
Tig--welding
TIG welding is particularly useful when high quality standards are r equired and when
welding thin sheet.
Before using the LHN 250 for TIG welding it must be equipped with a TIG torch and
gas valve, a cylinder of argon, an argon regulator, tungsten electrodes and, if
necessary, suitable fille r metal.
The best method to use is the touch start, where you gently stroke the tungsten
electrode against the workpiece to establish the arc.
5 I NSTALLATION
The in stallatio n must be executed b y a professional.
WARNING!
This product is intended for industrial use. In a domestic environment this product may cause radio
interference. It is the user’s responsibility to take adequate precautions.
5.1 Placing
Place the machine so that there is nothing to prevent the cooling air from passing
through it.
5.2 Connection
To get maximum performance from the LHN 250 it must be fitted with a 16A slow
fuse.
The LHN 250 have mains voltage compensation, which means that ¦10%
fluctuation in the supply voltage produces only ¦0.2% variation in the welding
voltage.
LHN 250 is intended for 400V, 3 phase supplies. It can be used with 50 Hz or
60 Hz supplies.
GB
bh11d001
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6 OPERATION
General safety regulations for the handling of the equipment can be found on
page 10. Read through before you start using the equipment!
The power switch is at the rear of the LHN 250. The white lamp on
the front will glow when the power is on.
1. Yellow lamp
2. Welding current control 4-250 A
3. White lamp
4. Remote control socket
The current is adjusted u sing the knob on the front.
Important!
Only u se the acco mpanyin g welding cable and return cable, with a
cross--sectional area of 35 mm@.
(See list of spare parts for order number).
6.1 Overload protection
To save you worrying about overloading the LHN 250 it has a thermal cut--out that
will trip before the temperature becomes too high. You can tell when the rectifier has
been overloaded because the yellow light comes on and it will no longer be possible
to weld.
7 MAINTENANCE
Note:
All warranty undertakings given b y the supplier cease to apply if the customer
attempts to rectify any faults on the machine during the warranty period.
7.1 Cleaning
Normally it is sufficient to blow the welding power source clean regularly using dry
compressed air (reduced pressure), and to clean the filter in the front regularly.
In dusty and dirty environment the welding power source should be cleaned at
shorter intervals.
GB
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8 FAULT TRACING
Type of fault Measure
No arc is generated by the welding
power source.
S Make sure the mains switch is on.
S Check that the welding and return cables are properly
connected.
S Make sure the welding current set is correct.
The welding current is interrupted in
the course of welding.
S Check if the thermal cut--out has tripped (the orange
indicating lamp on the front panel is on).
S Check the mains fuse.
The thermal cut--out trips frequently. S Check that the filter is not packed with dust.
S Check that the ratings of the welding power source have
not been exceeded (overload of the power source).
Poor welding result. S Check that the welding and return cables are properly
connected.
S Make sure the welding current set is correct.
S Check that there is nothing wrong with the electrodes.
9 ORDERING OF SPARE PARTS
Spare parts are ordered through your nearest ESAB representative, see back cover.
When ordering spare parts, please state machine type and number as well as desig-
nation and spare part number as shown in the spare parts list.
This will simplify dispatch and ensure you get the right part.
GB
Diagram Ñõåìà
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document
L
H
N
2
5
0
E
d
i
t
i
o
n
020
5
16
Spare p arts list Ñïèñîê çàïàñíûõ ÷àñòåé
-- 1 7 --
clhn1se1
cmha2p00
Valid for serial no. 747--xxx--xxxx to serial no. 220--xxx--xxxx
Ordering numbers for LHN 250
0457 516 880 LHN 250
Spare parts are to be ordered through the nearest ESAB agency as per the list on the back of the
cover. Kindly indicate type of unit, serial number, denominations and ordering numbers according to
the spare parts list.
Maintenance and repair work should be performed by an experienced person, and electrical work only
by a trained electrician. Use only recommended spare parts.
L
H
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2
5
0
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d
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t
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020
5
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clhn1se1
C = component designation in the circuit diagram
Item
no.
Qty Ordering no. Denomination Notes C
101 1 0366 296 003 Knob
102 1 0366 295 002 Switch 3--pole QF1
103 1 0193 307 104 Cable bushing
104 1 0456 193 881 Mains cable
106 1 0468 208 001 Strap
107 1 0468 497 001 Shackle
108 1 0321 475 881 Knob
109 1 0366 285 001 Cap
110 2 0467 796 001 Grille
111 1 0468 462 001 Filter
112 1 0468 214 001 Case
113 1 0369 857 886 Welding cable Complete
114 1 0369 857 887 Return cable Complete
L
H
N
2
5
0
E
d
i
t
i
o
n
020
5
16
-- 1 9 --
clhn1se1
L
H
N
2
5
0
E
d
i
t
i
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020
5
16
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clhn1se1
C = component designation in the circuit diagram
Item
no.
Qty Ordering no. Denomination Notes C
201 1 0468 461 001 End cover
202 1 Busbar Included in item 350 and 450
203 4 0366 588 001 Nut
204 1 0457 392 001 Front panel With text
205 2 0366 306 881 Connector OKC XS12
206 1 0457 558 001 Current bar
207 1 0457 559 001 Current bar
208 5
5
0193 260 001
0193 260 180
Connector
Cap
2--pole for 0.35mm
2
conductor
For 2--pole connector
XS02 and
XS04 -- XS07
209 1 0193 260 062 Connector XS09
210 1 0191 870 616 Potentiometer 10 kW 2W RP01
211 1
1
0193 759 001
0193 759 002
Indicating lamp
Light--emitting diode
28V, white
Yellow
HL01
V05
212 1 0368 544 003 Connector socket 12--pole XS11
220 1 0468 029 001 Control transformer TC01
225 2 0192 903 506 Capacitor 1000 mF C02,03
227 1 Busbar Included in item 350 and 450
228 1 Busbar Included in item 350 and 450
229 1 0193 260 154 Connector 6--pole for 0.75mm@ conductor XS01
1 0193 260 184 Cap For 6--pole connector
230 1 0193 260 150 Connector 2--pole for 0.75mm@ conductor XS02
1 0193 260 180 Cap For 2--pole connector
231 1 0193 260 153 Connector 5--pole for 0.75mm@ conductor XS10
1 0193 260 183 Cap For 5--pole connector
232 1 0193 260 006 Connector 7--pole for 0.35mm@ conductor XS03
1 0193 260 185 Cap For 7--pole connector
234 1 Busbar Included in item 350 and 450
235 1 Busbar Included in item 350 and 450
236 1 0467 802 001 Guide
237 1 0486 886 882 Circuit board Replacing 0481 870 884 AP01
240 1 0455 661 028 Rivet
241 1 0486 328 880 Circuit board AP05
-- 3 0194 034 001 Ferrite ring core L08
-- 3 0194 034 001 Ferrite ring core Included in circuit board AP05 L09
-- 1 0194 034 001 Ferrite ring core Included in circuit board AP05 L10
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