7 Electrical Installation
7.1 Safety Instructions
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Safety Information
DANGER
There is a danger of electrical arcing with serious personal injury. Never connect or disconnect electri -
cal connections while power of any source is on. Isolate the device from the power supply before work-
ing on it. Wait at least ten minutes after disconnecting the servo drive from the main supply power be-
fore touching potentially live sections of the equipment (e.g. contacts) or undoing any connections.
Control and power connections can still be live, even if the motor is not rotating. Capacitors can still
have dangerous voltages present up to ten minutes after switching off the power supply. Work on the
device must only be carried out, after the DC link voltage has dropped below a residual voltage of 40V
(to be measured on terminal X1).
CAUTION
Installation is permitted for properly qualified personnel only. Only professional staff who are qualified
in electrical engineering are allowed to install the servo drive. The qualified personnel must know and
observe the following standards:
•
IEC 60364 and IEC 60664
•
national accident prevention regulations
CAUTION
During installation work strictly avoid that screws, cable oddments or other foreign substances drop
into any device. Strictly prevent the devices from moisture.
CAUTION
Wrong DC-Bus voltage, unsuitable motor or wrong wiring will damage the amplifier. Check the combi-
nation of servo amplifier and motor. Compare the rated voltage and current of the units. Implement
the wiring according to the connection diagram in Chapter 7.4. Make sure that the maximum permissi-
ble rated voltage at the terminal X1 is not exceeded by more than 5%.
NOTICE
Compliance with the EMC product standard Commissioning (i.e. starting intended operation) is only
permitted when strictly complying with EMC product standard EN 61800/-3:2004. The installer/opera-
tor of a machine and/or equipment must provide evidence of the compliance with the protection tar-
gets stipulated in the EMC-standard.
NOTICE
Correct wiring is the basis for reliable functioning of the servo system. Route power and control cables
separately. We recommend a distance of at least 100mm. This improves the interference immunity.
NOTICE
Use only shielded motor and signal lines with double copper braiding that is overlapping by 60 to 70 %.
NOTICE
Feedback lines may not be extended, since thereby the shielding would be interrupted and the signal
processing could be disturbed.
NOTICE
− Always route the motor cable without interruptions and the shortest way out of the control cabinet.
− If possible enter signal lines only from one side into the control cabinet.
− Lines of the same electric circuit must be twisted.
− Avoid unnecessary cable lengths and loops.
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