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2
Safety
Gardner Denver
6
2 Safety
2.1 Electrical
Warning
Danger
Risk of electric shock from charged capacitors
Always disconnect the system from the power
supply and then wait a further 10 minutes before
touching electrical components. The power
capacitors require this time to discharge.
Check the DC bus voltage at the system terminal
strip of the frequency converter by measuring this
between
1) the +DC and -DC terminals (the exact position
can be found in the operating manual supplied
for the frequency converter),
2) between the +DC terminal and the chassis, as
well as
3) between the -DC terminal and the chassis.
The voltage must read zero in all three
measurements.
2.2 Safety
Guidelines
This operating manual exclusively describes the control
unit. It contains important references and warnings, and
therefore should be read by the relevant operator as
well as by the installer before installing and operating
the unit.
Note
Not only should the general safety references
mentioned in this “Safety guidelines” chapter be
observed, but also any special safety references
referred to in the other sections of the manual.
2.3
Safety Instructions
Gardner Denver is not liable for any damage or injury
resulting from the non-observance of these safety
instructions or negligence of the usual care and
attention required during handling, operation,
maintenance or repair, even if this is not explicitly
mentioned in these operating instructions. This applies
even where these operating instructions do not provide
specific indications in this regard.
If any of the regulations contained in these instructions
– especially with regard to safety – does not correspond
to the local legal provisions, the stricter of the two shall
prevail.
These safety regulations are general and valid for
various types of machines and equipment. It is
therefore possible that some references do not apply to
the unit(s) described in these instructions.
2.3.1 Danger
The sections marked with the warning symbol and the
word
Danger
indicate dangerous operating modes or
procedures which may lead to injury or death. The
following symbols are used in these instructions, as well
as on the unit:
Danger
:
Risk of death or serious injury
Danger
:
Risk of electric shock
Danger
:
Risk of hot surfaces
Danger
:
Consult the instruction manual
Danger
:
Risk of high pressure
Danger
:
Never operate the compressor with
open doors or loose access panels.
VS