Manual

58 3-phase stepper motor
4 Installation BRS3
0198441113730, V2.02, 03.2011
4.4 Electrical installation
The motors are not designed for direct connection to mains power; they
may only be operated with a suitable power stage.
Equipotential bonding conductors Potential differences can result in excessive currents on the cable
shields. Use equipotential bonding conductors to reduce currents on the
cable shields.
The equipotential bonding conductor must be rated for the maximum
current flowing. Practical experience has shown that the following con-
ductor cross sections can be used:
•16mm
2
(AWG 4) for equipotential bonding conductors up to a
length of 200 m
•20mm
2
(AWG 4) for equipotential bonding conductors with a length
of more than 200 m
@ DANGER
ELECTRIC SHOCK AND FIRE CAUSED BY INCORRECT INSTALLA-
TION OF THE CABLE
Incorrect installation of the cable may destroy the insulation. Broken
conductors in the cable or improperly connected connectors may be
melted by arcs.
• Avoid impermissible movements of the cable.
• Avoid forces or movements of the cable at the cable entry.
• Verify that the connector is properly plugged in and locked.
Failure to follow these instructions will result in death or serious
injury.
@ WARNING
UNEXPECTED BEHAVIOR CAUSED BY FOREIGN OBJECTS
Foreign objects, deposits or humidity can cause unexpected behavior.
• Keep foreign objects from getting into the product.
• Do not use damaged products.
• Do not remove the cover of the electronics housing. Only remove
the connector housing cover.
• Verify correct seat of seals and cable entries.
Failure to follow these instructions can result in death, serious
injury or equipment damage.