Miyachi Amada ISQ20 Series, Руководство по эксплуатации

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ISQ20
Commissioning
76609605EN-ISQ20-V1.2.docx 36/63
5 Commissioning
5.1 Preconditions for Commissioning

Stand-alone devices have to be placed firmly and stable on a table or a rack.

Built-in devices have to be mounted firmly and stable in a control cabinet or on a
table rack.

Welding heads have to be mounted firmly and stable on a table or a rack.

Pay attention to the instructions on commissioning.

Make sure that all connections are made accordingly.
Caution
5.2 Electrical Connections
Electrical connections must be done only by qualified and trained personnel
(electrician).
Warning
Applicable codes and regulations must be obeyed for dimensioning of the mains power
cable, fuse protection and earthing. In case of long distance to the mains transformer,
the cross section will eventually have to be increased to avoid a considerable drop of the
mains voltage. It can be assumed as a guideline, that at max. short circuit current the
voltage drop on the whole voltage line should not be higher than 5 %.
In order to compensate mains feedback, welding systems using their own power
supplies must be operated at the main transformer. Sensitive units nearby should be
protected using mains input filters.
Ensure that the units are adequately earthed. The unit housing should be included in
safety measures. For this use the earth connection on the rear of the ISQ20.
When connecting auxiliary voltage the mains voltage should also be compared with the
nominal voltage on the type label.
Read the connection diagram carefully before connecting a separate controller.
Take care of phase balance for connection cables from the same mains.
Potentially lethal high voltage is present in the inverter during operation.
The housing may only be opened after disconnecting the unit from the mains
power supply and awaiting the capacitors discharge period (approx. 3 min.).
Only trained and instructed personnel may be entrusted with service work.
Any unauthorized modifications are prohibited.
The welding current source may only be used for its intended purpose.
Warning