ABB DCS800 Installation And Start-Up Manual page 59

• Mains connection
You can use a disconnect switch (with fuses) in the power supply
of the thyristor power converter to disconnect the electrical com-
ponents of the unit from the power supply for installation and main-
tenance work. The type of disconnect used must be a disconnect
switch as per EN 60947-3, Class B, so as to comply with EU regu-
lations, or a circuit-breaker type which switches off the load circuit
by means of an auxiliary contact causing the breaker's main con-
tacts to open. The mains disconnect must be locked in its "OPEN"
position during any installation and maintenance work.
• EMERGENCY STOP buttons must be installed at each control
desk and at all other control panels requiring an emergency stop
function. Pressing the STOP button on the control panel of the thy-
ristor power converter will neither cause an emergency motor stop,
nor will the drive be disconnected from any dangerous potential.
To avoid unintentional operating states, or to shut the unit down in
case of any imminent danger according to the standards in the
safety instructions it is not sufficient to merely shut down the drive
via signals "RUN", "drive OFF" or "Emergency Stop" respectively
"control panel" or "PC tool".
• 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 in-
dustrial installations.
If in special cases the electrical machines and devices are in-
tended for use in non-industrial installations - which may require
stricter safety regulations (e.g. protection against contact by chil-
dren or similar) -, these additional safety measures for the installa-
tion must be provided by the customer during assembly.
Note:
• When the control location is not set to Local (L not shown in the
status row of the display), the stop key on the control panel will not
stop the drive. To stop the drive using the control panel, press the
LOC/REM key and then the stop key
3ADW000195R0101 DCS800 Service Manual e a
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Safety Instructions
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