Siemens SIMOTICS A 1FU8, Operating Instructions Manual

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1FU8
Operating Instructions, 02/2016, 5 610 70000 02 000
51
Electrical connection
6
6.1 Reference to chapter Safety instructions
When carrying out any work on the machine, observe the general safety instructions
(Page 13) and the specifications contained in EN 50110-1 regarding safe operation of
electrical equipment.
6.2 Connecting the machine
DANGER
Hazardous voltages
Death, injury or material damage can occur. Note the following safety information before
connecting-up the machine:
•
Only qualified and trained personnel should carry out work on the machine while it is
stationary.
• Disconnect the machine from the power supply and take measures to prevent it being
reconnected. This also applies to auxiliary circuits.
•
Check that the machine really is in a no-voltage condition.
• Ensure that the machine rotor does not rotate, otherwise dangerous voltages will be
present at the machine terminals.
•
Establish a safe protective conductor connection before starting any work.
• If the incoming power supply system displays any deviations from the rated values in
terms of voltage, frequency, curve form or symmetry, such deviations will increase the
temperature and influence electromagnetic compatibility.
DANGER
Hazardous voltages
Death, injury or material damage can occur. Operating the machine on a line supply system
with a non-grounded neutral point is only permitted over short time intervals that occur
rarely, e.g. the time leading to a fault being eliminated (ground fault of a cable, EN 60034-
1).
Observe the information in EN / IEC 60034-1 (VDE 0530-1) regarding operation at the limits
of range A (±5 % voltage difference and ±2 % frequency difference) regarding temperature
increase and deviation of the operating data from the rated data on the rating plate. Never
exceed the specified limits!
Connect up so that a permanently safe electrical connection is guaranteed (no protruding
wire ends); use the assigned cable-end fittings (e.g. cable lugs, end sleeves).