Drive-Cliq Interface For Cu305; Notes On The Commissioning Of A 2-Pole Resolver As Absolute Encoder - Siemens Sinamics S110 Function Manual

General information for commissioning

1.3 DRIVE-CLiQ interface for CU305

1.3 DRIVE-CLiQ interface for CU305
The CU305 has a DRIVE-CLiQ interface. You may connect exactly one of the following
components to this interface:
● SMI motor
● 1 encoder of type SMC10, SMC20, SMC30, SME20 or SME25
Further components or connections to the DRIVE-CLiQ interface are not permitted and lead
to errors in the drive system.
Note
If you want to use an SSI encoder with incremental signals, you will need to connect it to the
CU305 via an SMC30.
1.4 Notes on the commissioning of a 2-pole resolver as absolute
encoder
You can use 2-pole (1 pole pair) resolvers as singleturn absolute encoders. The absolute
encoder position actual value is provided in Gn_XIST2 (r0483[x]).
Actual position value format
The factory setting for the fine resolution of Gn_XIST1 differs from the fine resolution in
Gn_XIST2 (p0418 = 11, p0419 = 9). This may cause a slight displacement of the encoder
position after switching the drive unit off/on.
Therefore, when using a 2-pole resolver as an absolute encoder, we recommend that the
fine resolution for Gn_XIST1 (p0418) is set the same as the fine resolution for Gn_XIST2
(p0419), e.g. p0418 = p0419 =11.
2-pole resolvers are automatically entered in the PROFIdrive profile (r0979) as singleturn
absolute encoders.
Position tracking
You can also activate position tracking for a 2-pole resolver. Please note, however, that the
resolver may not be moved more than half an encoder revolution (pole width) when switched
off. The activation and configuration of the position tracking is described in the chapter
"Position tracking".
EPOS - absolute encoder adjustment
If the 2-pole resolver is used as an absolute encoder for basic positioning (EPOS), the
absolute encoder adjustment must be performed:
● via STARTER (Basic positioner → Referencing) or
● via the expert list.
To do this, set reference point coordinate p2599 to the value corresponding to the
mechanical system and request the adjustment with p2507 = 2.
You will then need to back up the data from RAM to ROM.
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Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Function Manual