II K 5-3
Installation
Warnings
Warnings provide information on states which if the specified
procedure for the state concerned is not meticulously complied with
may result in a serious error, in major damage to the unit, in injury
to persons and even in death. They are identified by the following
symbols:
Danger: High Voltage:
This symbol warns you of high voltages which may result in injuries
to persons and/or damage to equipment. Where appropriate, the
text printed adjacent to this symbol describes how risks of this kind
may be avoided.
• All electrical installation and maintenance work on the thyristor
power converter must be carried out by properly qualified staff
who have been thoroughly trained in electrical engineering.
• The thyristor power converter and its adjacent units must be
properly earthed by qualified professionals.
• You must NEVER perform any work on the thyristor power
converter while it is still switched on. First switch the unit off, use
a measuring instrument to make absolutely sure that the power
converter has really been de-energized, and only then you may
start with the work concerned.
• Due to external control circuits, there may be dangerously high
voltages present at the thyristor power converter even after the
line voltage has been switched off. So always work at the unit with
appropriate caution! Non-compliance with these instructions may
result in injury (or even death!).
General Warning:
This symbol warns you of non-electrical risks and dangers which
may result in serious or even fatal injury to persons and/or in damage
to equipment. Where appropriate, the text printed adjacent to this
symbol describes how risks of this kind may be avoided.
• When thyristor power converters are in use, the electric motors,
power transmission elements and the driven machines are
working in an extended operating range, which means they have
to cope with a relatively high loading.
• You should have made sure that all units, devices and
appliances used are actually suitable for this higher loading.
• If you have to operate the thyristor power converter at a rated
motor voltage and/or a rated motor current significantly
below the figures stated in the thyristor power converter's
output data, you must take appropriate precautionary meas-
ures to protect the unit against overspeed, overload, break-
age, etc., by modifying the software or hardware appropriate-
ly.
• For insulation testing, you must disconnect all cables from
the thyristor power converter. You should avoid operating
your unit at values other than the rated data. Non-compliance
with these instructions may cause lasting damage to the
thyristor power converter.
• The thyristor power converter possesses a number of automatic
reset functions. When these functions are executed, the unit will
be reset after an error and will then resume operation. These
functions should not be used if other units and devices are not
suitable for an operating mode of this kind, or if their use might
entail dangerous situations.
Warning of electrostatic discharge:
This symbol warns you against electrostatic discharges which may
damage the unit. Where appropriate, the text printed next to this
symbol describes how a risk of this kind may be avoided.
Notes
Notes supply information on states requiring particular attention, or
indicate that additional information is available on a specific topic.
For this purpose, the following symbols are used:
CAUTION!
Cautions are designed to draw your attention to a particular state
of affairs.
Note
A note contains or refers you to additional information available
on the particular topic concerned.
Mains connection
You can use a switch disconnector (with fuses) in the power supply
of the thyristor power converter to disconnect the electrical compo-
nents of the unit from the power supply for installation and mainte-
nance work. The type of disconnector used must be a switch
disconnector as per EN 60947-3, Class B, so as to comply with EU
regulations, or a circuit-breaker type which switches off the load
circuit by means of an auxiliary contact causing the breaker's main
contacts to open. The mains disconnector must be locked in its
"OPEN" position during any installation and maintenance work.
EMERGENCY STOP buttons
EMERGENCY STOP buttons must be installed at each control desk
and at all other control panels requiring an emergency stop function.
Intended use
The operating instructions cannot take into consideration every
possible case of configuration, operation or maintenance. Thus,
they mainly give such advice only, which is required by qualified
personnel for normal operation of the machines and devices in
industrial installations.
If in special cases the electrical machines and devices are intended
for use in non-industrial installations - which may require stricter
safety regulations (e.g. protection against contact by children or
similar) -, these additional safety measures for the installation must
be provided by the customer during assembly.
Common Warnings
To Next Page
Loading...
