Weiro ZX7-630C Technical manual

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THANKS FOR PURCASING OUR PRODUCT
DC INVERTER MMA/DC WELDING MACHINE
O P E R A T I O N I N T R U C T I O N
WEIRO
Safety Depends on You
WEIRO are welding and cutting equipment is designed and built with safety in mind. However, your
overall safety can be increased by proper installation... and thoughtful operation in your part. DO NOT
INSTALL, OPERATE OR REPAIR THIS EQUIPMENT WITHOUT READING THIS MANUAL
AND THE SAFETY PRECAUTIONS CONTAINED THROUGHOUT. And, most importantly, think
before you act and be careful.
CV. ANUGRAH DUTA NIAGA
J a l a n A r i e f R a c h m a n H a k i m 5 1 , R u k o 2 1 B l o k D - 1 K l a m p i s , S u k o l i l o , S u r a b a y a
T e l p : ( 0 3 1 ) 5 9 9 0 0 8 9 ; 5 9 9 7 2 5 9
F a x : 0 3 1 - 5 9 6 6 0 9 9
W e b S i t e : w w w . a d n s b y . c o . i d
E m a i l : a d n _ o f f i c e @ y a h o o . c o m

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SAFETY PRECAUTIONS
Follow these precautions carefully. Improper use of any welder can result
injury or death.
1. Only Connect Welder To A Power Source For Which It Was Designed. The
spesification plate on the welder lists this information. When welding
outdoors only use an extension cord interded for such use.
2. Only operate welder in dry locations and on coment or masonry floor. Keep
area clean and uncluttered.
3. Keep all combustibles away from work site.
4. Do not wear clothing that has been contaminated with grease or oil.
5. Keep cables dry and free fro oil and grease and never coil around shoulders.
6. Secure work with clamps or other means ; dont’t overreach when working.
7. Never strike an arc on a compressed gas cyclinder.
8. Don’t allow the insulated portion of the electrode holder to tourch the
welding ground while current is flowing.
9. Shut off power and unplug machine when reparing or adjusting. Inspect
before every use. Only use idencial replacement parl.
10. Follow all manufacture’s rules on operating switches and making
adjustments.
11. Always wear protective clothing when welding. This includes :
a. Long sleeved shirt ( leather sleeves ),
b. Protective apron without pockets
c. Long protective pants and boots.
When handing hot materials, wear asbestos gloves.
12. Always wear a welder’s helmet with protective eye piece when
welding. Arcs may cause blindness. Wear a protective cap underneath the
helmet.
13. When welding overhead, beware of hot metal droppings. Always
protect the head, hand, feet, and body.
14. Keep a fire extinguisher close by at all times.
15. Do not exceed the duty cycle of the machine. The rated cycle of a
welding machine is the percentage of a ten minute period that the machine
can operate safely at a given output setting.
16. Keep all children away from area. When storing equipment, make
sure it is out of reach of children.
17. Guard against electric shock. Do not work when tired. Do not let body
come in contact with grounded surfaces.

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I. MAIN USAGE AND THE RANGE OF USAGE
ZX7-630C inverse argon arc welder produced with international advance technology is a new
variety of welding machine using IGBT. It has performance and high efficiency that the traditional
welder can not be compared with. The welding current is infinitely and independently adjustable.
All ferrous metal, copper and stainless steel material can be omnibearing welding in all position.
The welding current is stable. The welding seam is nice few spatters and low noise occurs during
welding. The welder has outstanding feature of minimum current. The minimum current can be
up to 50A. Protection measures of the welder are perfect. The welder is reliable, ligth in weight
and easy to use. It is particularly suitable for enterprise of plant and mine, build, decoration and
maintenance sectors.
II. MAIN TECHNICAL SPECIFICATIONS
III. OPERATING CONDITION AND WORK SURROUNDING
a. Operating condition :
Voltage of power source : Three Phases AC 415V ± 10%
Frequency : 50/60 Hz
Reliable grounding protection
b. Work surrounding
i. Relative humidity : notmorethan90%(averangemonthlytemperaturnotmorethan20˚C)
ii. Ambient temperature : -10˚C - 40˚C
iii. The welding site should have no hamful gas, chemicals, molds and inflammable matter, explosive
and corrosive medium, no big vibration and hump to the welder.
iv. Avoiding rain water. Operatingin rain is not allowed.
MODEL
ZX7-630C
INPUT
RATED INPUT VOLTAGE ( V )
3x415V ± 10% 50/60Hz
RATED INPUT POWER ( KVA )
35
MMA
NO-LOAD VOLTAGE ( V )
70
WELDING CURRENT RANGE (A)
50 - 630
RATED OUTPUT CURRENT ( A )
630
DUTY CLYCLE ( % )
60
EFFICIENCY ( % )
≥ 80
WEIGHT ( Kg )
68
PROTECTION CLASS
IP21S
DIMENSIONS ( mm )
550x360x730

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IV. DESCRIPTION OF THE ERECTION
a. Before welding, the operator should read the operation intruction.
b. Check the welder appearance for deformation and damage.
c. For the safety of the equipment and the person, the customer must correctly make grounding or
protection according to the power supply system using 4mm2 lead to connect the protectio grounding
of the welder.
d. Welding operation should be carried out in dry and good ventilating area. The surrounding objects
should be notless than 0,5m away from the welder.
e. Checking thewelder output connector for tightness.
f. The welder can not be moved and the cover can not be opened during the power is on and welding
operation is carried out.
g. The welder should be cared, used and managed by specialized person.
h. Current of the distribution board : not less than 100A.
V. SKETCH THE PANEL FUNCTION
1 INDICATION OF WELDING CURRENT
8 OVER HEAT
2 INDICATION OF WELDING VOLTAGE
9 OUTPUT " + "
3 WELDING CURRENT REGULATOR
10 OUTPUT " - "
4 ARC FORCE REGULATOR
11 POWER SUPPLY
5 INDICATING LIGHT OF POWER
12 POWER SWITCH
6 INDICATING OF ABS PHASE
13 FAN
7 WARNING INDICATING LIGHT
14 FAN

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VI. METHOD OF THE OPERATION
a. Hand welding with electrode
i. Regulating Current Knob “4” ( base current regulator ) to select right welding current select
empiric formula : I = 40D, D is dia. of the electrode.
ii. Notice positif and negatif connection during welding.
iii. Connecting input power for the welder, then switch, then switch on the power and current
indicating light “7” is on.
iv. Pay attention to rated welding current and rated duty cycle of the welder. Overload is not
allowed.
v. After the welding operation is finished, let the welder be ventilated for a few minutes and
then cut off the power switch.
VII. SYSTEMATIC BLOCK DIAGRAM

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VIII. This product is sold subject to the understanding that if any defect in manufacture or material
shall appear within 12 months from date of consumer sale, the manufacturer will arrange for
such defect to be rectified without charge on the sales invoice and warranty card ( exept for any
personal trouble ). General Troubles and Problem Solving :
Trouble
Cause
Problem resolving
Power lamp not light
1. No electricity input
1. Check incoming line
2. Switch of welder fails
2. Replace the switch
3. Absense phase ( fan rotating )
3. Check incoming line
Fan not rotating
1. Fan power line is off
1. Reconnect the line
2. Enclosure blocks the fan due to
deformation
2. Reform the enclosure
3. The fan fails
3. Replace the fan
4. Absence phase ( red lamp lights )
4. Check yhe input power source
Warning lamp lights
1. Over heat ( yellow lamp lights )
1. Welding after cooling
2. Over current ( Green lamp lights )
2. Input voltage too low or the machine
fails
3. Absence phase ( red lamp lights )
3. Check incoming line
No output of welder
1. Absence phase protection ( red lamp
lights )
1. Check the input power
2. Over current protection
2. Over load using
3. Welder fails
3. Maintenance in manufacture
Output current
decreased
1. Input Voltage is low
1. Power line is thickened
2. Input line is too thin
Current can not be
regulated
1. Connecting line of the potentiometer is off
1. Reconnecting the line
2. Potentiometer for current regulation fails
2. Replace potentiometer

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