BECKHOFF AL2000 Linear servomotor - Manual (Page 36)

Electrical installation
8 Electrical installation
8.1 Important notes
DANGER
Serious risk of injury through electric shock!
• Only staff qualified and trained in electrical engineering are allowed to wire up the mo­
tor.
• Check the assignment of the servo drive and servomotor. Compare the rated voltage
and the rated current of the devices.
• Always make sure that the motors are de­energised during assembly and wiring, i.e. no
voltage may be switched on for any piece of equipment which is to be connected. En­
sure that the control cabinet remains turned off (barrier, warning signs etc.). The individ­
ual voltages will only be turned on again during commissioning.
• Never undo the electrical connections to the motor when it is live. Control and power
leads may be live, even if the motor is not running.
Attention
Smooth operation
• Ensure that there the servo drive and the motor are earthed properly. See below for fur­
ther information regarding EMC shielding and earthing. Earth the mounting plate and
motor housing. Information about the connection method can be found in the section
entitled Connection of motors with pre‐assembled cables [
} 37]
• Use only cables approved by Beckhoff for the operation of the AL2xxx.
• Route the power and encoder cables as separately as possible from one another (sep­
aration > 20 cm). This will improve the immunity of the system to electromagnetic inter­
ference.
• Lay all cables with an adequate cross­sectional area according to EN 60204. The rec­
ommended cross­section can be found in the technical data.
• Wiring:
ð Connect the feedback cable
ð Connect the motor cables
ð Shielding at both ends (shield terminal or EMC plug)
Attention
HF interference
• The ground symbol , which you will find in the wiring diagrams, indicates that you
must provide an electrical connection, with as large a surface area as possible, be­
tween the unit indicated and the mounting plate in the control cabinet. This connection
is to suppress HF interference and must not be confused with the PE (protective earth)
symbol (protective measure according to EN 60204).
Linear servomotor AL2xxx 36 Version 4.0