Duty Cycle & Over Heat - gala gar SMART PRO 5.0 Manual Técnico De Instrucciones

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3.2 Duty cycle & Over heat
3.2 Duty cycle & Over heat
3.2 Duty cycle & Over heat
3.2 Duty cycle & Over heat
The letter "X" stands for duty cycle, which is defined as the proportion of the time that a machine can work
continuously within a certain time (10 minutes). The rated duty cycle means the proportion of the time that a
machine can work continuously within 10 minutes when it outputs the rated welding current.
The relation between the duty cycle "X" and the output welding current "I" is shown as the following figure.
If the welder is over-heat, the IGBT over-heat rotection unit inside it will output an instruction to cut output
welding current, and brighten the over-heat pilot lamp on the front panel. At this time, the machine should be
relaxed for 15 minutes to cool the fan. When operating the machine again, the welding output current or the
duty cycle should be reduced.
X
100%
60%
30%
0
In pu t: single ph ase 2 20 V
X
1 0 0 %
6 0 %
4 3 %
0
In pu t: single ph ase 3 80 V
X
100%
60%
43%
0
Inp ut: three ph ase 220 V
X
10 0 %
6 0%
4 3 %
0
Input: thre e phase 380V
SMART PRO 5.0
The re lation be tween duty c ycle a nd
we lding c urrent for GM- 3150
SMART PRO 5.0
I( A)
140
177
250
230
TIG
V
T he re latio n be tw een du ty c y cle a n d
SMART PRO 5.0
w e ld in g c u rren t fo r G M - 31 5 0
I( A )
2 0 7
2 67
3 1 5
400
TIG
The re lation be twee n duty cycle and
welding c ur rent for GM -3150
SMART PRO 5.0
I( A)
207
267
315
230
T IG
V
T he relation b etw een du ty cy cle and
w eld in g cur rent fo r G M-31 50
SMART PRO 5.0
I( A )
20 7
2 67
3 15
400
TIG
X
Th e relatio n between du ty cycle and
weld in g curren t fo r G M- 315 0
10 0%
60 %
2 5%
0
10 0
1 30
230
Input: singl e pha se 220V
M MA
X
T he re lation betw een duty cycle and
we lding current for G M- 3150
SMART PRO 5.0
100%
60%
40%
0
158
204
400
Inp ut: single pha se 38 0V
M M A
X
The relation between duty cycle and
welding current f or GM -3150
100%
60%
40%
0
158
204
230
I npu t: th ree p hase 2 20V
M MA
V
X
T he relation b etw een d uty cycle an d
w eld in g cu rrent fo r G M-3 15 0
10 0 %
6 0%
3 0 %
0
1 73
2 2 3
400
I nput: three phase 380V
M MA
Pág. 28
SMART PRO 5.0
I( A)
20 0
I( A )
250
SMART PRO 5.0
I (A)
250
SMART PRO 5.0
I (A)
31 5

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