5
Electrical installation
Connecting the motor and the encoder system via plug connector SM./SB./SH.
Operating Instructions – CM3C63 – 100
28
5.5
Connecting the motor and the encoder system via plug connector SM./SB./
SH.
As standard, the electric motors are supplied with the SM./SB. plug connector system
in two-cable technology.
In the basic version, SEW-EURODRIVE delivers electric motors with a connector on
the motor end and without mating connector. The encoder system is connected using
a separate 12-pin round plug connector (M23). The mating connectors can be ordered
separately or together with the motor.
Electric motors in the optional "encoderless design" are equipped with single-cable
technology with SH. plug connector system upon delivery.
INFORMATION
Using an inverter with suitable control mode is mandatory for operating a CM3C.. mo-
tor in encoderless design.
The following control modes by SEW‑EURODRIVE are available:
•
ELSM
®
control mode (Encoderless Synchronous Machine)
•
PMVC control mode (Permanent Magnet Vector Control)
All servomotors are equipped with quick-lock right-angle or radial connectors as stan-
dard (SpeedTec).
5.5.1
Notes regarding the connection of the power and signal cables via the connector system
Power cables and signal cables are connected with adjustable right-angle connectors
as standard.
NOTICE
Damage to the right-angle connector in case of rotation without mating connector.
Damage to the plug connector and the sealing surface.
•
Adjust the right-angle connector only while the mating connector is plugged in.
•
If you do not have a mating connector at hand, do NOT use pliers to adjust the
right-angle connector.
INFORMATION
•
Comply with the permitted bending radii of the cables.
•
When using low-capacity trailing cables, the bending radii are larger than for the
previously used standard cables.
•
SEW‑EURODRIVE recommends the use of low-capacity cables.
•
Use cables with a permitted continuous operating temperature of minimum 80 °C.
NOTICE
Potential damage to the right-angle connector.
Possible damage to property.
•
Do not align the right-angle connector frequently.
26870460/EN – 05/2021
