Bosch PSG 3000 Series, Instructions For Assembly And Operation Manual

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PSU 5000 / PSG 3000
Schweisskoffer
Instructions for Assembly and Operation
1070 078 224--- 108
2--2
2.1 Inverter
Inverter features:
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current ranges between 3 kA and 18 kA,
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operating voltages between 400 V and 690 V, 50 / 60 Hz,
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fast replacement through quick--action closing mechanisms,
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different transformer types may be used,
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inverters with integrated current control,
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fault diagnostics through seven--segment display and BCD code.
The heat sinks can be optionally mounted at the rear or side panel. The inverters
are plugged onto four guide pins and fixed by quick--action clamps for easy service
and replacement.
2.2 Driving the inverter
The inverter is driven in the Schweisskoffer by:
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PSS 5000 weld timer in 50 Hz or milliseconds design,
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PSS 2081 weld timer (with 27 VAC booster transformer),
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OEM control unit,
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programmable logic controller with analog value output.