Bosch PSG 3000 Series, Instructions For Assembly And Operation Manual

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PSU 5000 / PSG 3000
Technical
data
Instructions for Assembly and Operation
1070 078 224--108
5--12
5.3.11Example of PSU 5100.XXX and PSG 3100.00 A
1. Look for the related diagram (PSU 5100.XXX and PSG 3100.00 A).
PSG integration time: 60s
Limitation by transformer (and PSU)
Limitation by diodes with 50 cycles weld time
Limitation by diodes with 20 cycles weld time
Limitation by diodes with 10 cycles weld time
Limitation by diodes with 5 cycles weld time
20,0
P1
P2
10,5
Ise
k
(kA
)
i
1
: 21,2
i
2
: 17,1
P1
ipo
i
1ipo
: 22,2
The load curves represent ab-
solute limit values. For a re-
liable continuous operation, we
recommend utilizing these limit
values by no more than 80%.
Diode integration time: 2 s
30,0
Diode integration time: 2 s
20,00
ED (duty cycle) [%]
Ise
c
[k
A
]
2. Note down your welding parameters. Model data:
20 cycles per minute (
'
1 sequence = 60s/20=3s).
150 cycles duration (including ancillary times such as SQZ, OFF, CT, WLD,
HOLD and all idle times)
'
150 cycles = 1 sequence
'
1 cycle = 3s/150=0.02s.
1st sequence: 2 x 15 cycles weld time:
subsequent sequences: 15 cycles weld time each (
'
t
s
=15 x 0.02s=0.3s)
Model data
3 sec 3 sec
60 sec
I
sec
15 cycles each