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Electrical connection
6.1 Connecting the machine
• 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 there is a safe and reliable 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.
• 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, IEC/EN 60034-1).
6.1.1
Safe connection
• Carefully comply with the information provided in EN / IEC 60034-1 (VDE 0530-1) regarding
operation at the limits of A and B zones, especially in respect of temperature increase and
deviation of the operating data from the rated data stamped on the rating plate. Do not
exceed these limits. Do not use machines in zone B that are marked for zone A.
• 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).
Connect up the line supply voltage and arranged the disconnecting link in accordance with
the circuit diagram provided in the terminal box.
• Select the connecting cables in accordance with DIN VDE 0100 taking into account the rated
current and the installation-specific conditions – e.g. ambient temperature, routing method
etc. - according to DIN VDE 0298 and/or EN / IEC 60204‑1.
The technical specifications stipulate the following that have to be taken into account with
respect to the motor connection:
• Direction of rotation
• The number and arrangement of the terminal boxes.
• The circuit and connection of the motor winding
6.1.2
Selecting cables
Take the following criteria into account when selecting the connecting cables:
• Rated current
• Rated voltage
• If required, service factor
• System-dependent conditions, such as ambient temperature, routing type, cable cross-
section as defined by required length of cable, etc.
• Configuration notes
58
1PC1423 roller-table motors SH 112 ... 400
Operating Instructions
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