Siemens SIMOTICS M-1PH8, Operating Instructions Manual

Page: 104 / 186

Connection
5.2 Electrical connection
1PH808/1PH810 main motors
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Operating Instructions, 04/2017, 610.48004.40f
5.2.13 Connecting-up a converter
Selecting and connecting the cables
● To connect the motor to a converter, use MOTION-CONNECT cables or shielded
connecting cables.
Note
The cable shielding, made up of as many strands as possible, must have a high electrical
conductivity. Braided shields made of copper or aluminum are well suited.
● Connect the shield at both ends at the motor and at the converter.
● Keep unshielded cable ends as short as possible.
● Establish the connection through a larger surface area so that high-frequency currents
are suitably discharged. Establish a 360° connection at the converter and at the motor,
for instance using EMC cable glands at the cable entries.
5.2.14 Connecting a holding brake (option)
Electrically connecting a holding brake (option) is described in the Appendix "Holding brake
operating instructions".
See also
Holding brake operating instructions (Page 152)
5.2.15 Sealing air connection (option Q12)
Cooling lubricants containing oil capable of creepage, which can also be corrosive, are
mainly used for machine tools and transfer machines. For critical applications involving
media with extremely high creepage rates, generally degree of protection against water
(according to EN 60034-5/IEC 60034-5) alone is not sufficient. To address these particular
applications, 1PH8 main motors can be ordered with sealing air connection by specifying
option Q12. The sealing air connection can be implemented in conjunction with terminal
boxes or power connectors.
Note
Improved protection against oils and media that can creep
Sealing air does not increase the IP degree of protection against water. It does, however,
improve protection against oils and media that can creep.