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17
Attention: If the troubles cannot be resolved, please inform our local agent of the specific problems or contact us
directly.
Packing list
No.
Item
Model
Qty
1.
Power source
ZD7-1600/2000IGBT
1
2.
Documents
Manual/guarantee card/qualified card
1
4. Welding current is out
of control.
1.
The connection of hall sensor
for current checking installed
inside machine output terminal
is loosen.
2.
The main control board is
damaged
;
3.
The connection of remote
control cable is loosen.
4.
Check the Hall sensor, and ensure it is
connected firmly
;
5.
Repair or replace the main control
board
;
6.
Well connect the remote control cable.
4.
Machine non-load, selection
local switch, machine have
abnormal noise or breaker
off
1.
Three phase bridge rectifier
damage
2.
IGBT damage
1.
Check three phase bridge rectifier
2.
Check IGBT
。
6. During welding, the arc
extinguishes suddenly and
no arc striking immediately,
after a moment the
machine work normally
again.
1.
The machine is over load,
which cause over heat
protection of temperature
relay.
2.
The temperature relay is
damaged.
1.
Pay attention to ambient temperature
and rated duty cycle.
2.
Replace the temperature relay with
same model.
5.
Voltage abnormal indicator
on
1.
Three input lack phase or
voltage
1
.
Check three phase input
6.
Turn
on
the
breaker,
selection
local
switch,
machine can't strike arc
1
.
Overheat or lack voltage
protection
2
.
PCB damage
1
.
Check if the protection function work
2
.
Repair or replace PCB
Содержание ZD7-1600IGBT
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