Siemens SINAMICS S120 Commissioning Manual page 130

Commissioning
2.12 Selection and configuration of encoders
Encoders with a DRIVE-CLiQ interface
Encoder evaluation units with DRIVE-CLiQ interface are available in different versions, e.g.
● as Sensor Module Cabinet-Mounted (SMCx) for rail mounting,
● as Sensor Module External (SMEx) to be incorporated in the feeder cable,
● as Sensor Module Integrated (SMI), mounted on the motor, or
● as DRIVE-CLiQ Module Integrated (DQI), integrated in the motor.
A temperature sensor at the DRIVE-CLiQ encoder to detect the motor temperature is
connected in the factory.
Support with STARTER version
STARTER supports an encoder with DRIVE-CLiQ interface. Additional order numbers
(MLFBs) are available for the corresponding DRIVE-CLiQ motors in the encoder overview.
The motor order number is used for an SMI or DQI motor.
When configuring a motor with DRIVE-CLiQ interface, a distinction is not made between SMI
motors and DQI motors.
Note
Restrictions for SMI/DQI motors
Only absolute encoders are used in motors with integrated DRIVE-CLiQ encoders.
If you replace a motor with encoder and external DRIVE-CLiQ interface by an SMI motor or
DQI motor, then you must appropriately reparameterize the SMI/DQI motor.
The functional behavior differs for the following encoder changes:
● If the encoders differ due to the measurement principle and the resolution.
● If the encoders are used in applications where the evaluation requires a zero mark (for
● If the encoder is to be used on an axis with SINAMICS Safety Integrated Extended
A new commissioning test and, if necessary, new configuration must be carried out for
activated SINAMICS Safety Integrated Extended Functions or SINUMERIK Safety
Integrated.
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example for referencing purposes). The encoder with integrated DRIVE-CLiQ interface
does not supply a separate zero mark, as it involves an absolute encoder. So in these
applications (and/or in the superimposed controls) the changed behavior must be
selected.
Functions or SINUMERIK Safety Integrated because a lower position accuracy (SOS
Safe Operating Stop) and a lower maximum velocity (SLS Safely Limited Speed) is
obtained as a result of the lower resolution of the redundant position value (POS2).
Commissioning Manual, (IH1), 01/2011, 6SL3097-4AF00-0BP1
Commissioning Manual