Commissioning
4.4 Setting up a STEP 7 project
Connecting the SIMODRIVE 611U to the Technology CPU
Product Information, 03/2008, A5E00272066-05
37
Encoder type Vendor SIMODRIVE 611U-relevant settings
Resolver 2-pin: 1Fxxxxx-xxxxx-xTxx
Multi-pin: 1Fxxxxx-4xxxx-xSxx
Encoder system for motors with DRIVE-
CLiQ interface:
2-pin: 1Fxxxxx-xxxxx-xPxx
Multi-pin: 1Fxxxxx-4xxxx-xUxx
611U parameters:
Resolver pole pair count:=1,2,3 or 4
SIMOTION:
Encodersystem:=rotatory_system
Encodertype:= sensor_incremental
encoderMode= RESOLVER
IncEncoder.Incresolution:= *)
IncResolutionMultipliercyclic:= 2048(0)
*) Depending on the value of 611U parameter P1011.2, the
following setting applies
P1011.2=0:
IncResolution :=1024 (2-pole)
=2048 (4-pole)
=3072 (6-pole)
=4096 (8-pole)
P1011.2=1:
IncResolution :=4096 (2-pole)
=8192 (4-pole)
=12288 (6-pole)
=16384 (8-pole)
For incremental encoders, a fine resolution of 0 (default
value) in the IncResolutionMultipliercyclic parameter
means a fine resolution of 2
11
= 2048
Note:
For the encoders, a fine resolution of 0 (default value)
● in the
TypeOfAxis.NumberOfEncoders.Encoder_1.IncEncoder.IncResolutionMultiplierCyclic
parameter, a fine resolution of 2
11
= 2048
● in the
TypeOfAxis.NumberOfEncoders.Encoder_1.IncEncoder.IncResolutionMultiplierAbsolute
parameter, a fine resolution of 2
9
= 512
Differences between ABS and CYCLE_ABS:
– In the case of ABS, the absolute actual position of the encoder is assumed after
powering up the Technology CPU or following an encoder error.
– In the case of CYCL_ABS, overflows of the encoder ranges are tracked in the NVRAM
and taken into account when the cycle is resumed.
The encoder must be calibrated after the initial loading.
If the settings for the absolute encoder are modified, the encoder must also be re-
adjusted.
With the CPU switched off, the encoder may only be moved a maximum distance ≤
"half the encoder range" in both traversing directions in order to still be able to detect
the exact position.
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