Commissioning
4.3 Absolute encoder (SSI), multiturn
SIMOTION ADI4 - Analog Drive Interface for 4 Axes
76 Manual, 05/2009, 6FC5 297-0BA01-0BP6
Overview: SIMOTION encoder parameters
Parameter: TypeOfAxis > Encoder_1 > Value
encoderTyp SENSOR_CYCLIC_ABSOLUT
encoderMode SSI_MODE
encoderSystem ROTATORY_SYSTEM
AbsEncoder > absResolution 4096
AbsEncoder > absDataLength 12
AbsEncoder > absResolutionMutiplierAbsolute 1
1)
AbsEncoder > absResolutionMutiplierCyclic 2048
2)
1)
After the ramp-up of the controller, the absolute actual value of the encoder is read out once.
2)
2048 = 2
11
; corresponds to STEP 7, HW Config: "Reserved bits for fine resolution" = 11
4.3 Absolute encoder (SSI), multiturn
General
The parameter assignment of a multiturn absolute encoder (SSI) illustrated in the following
example is performed using the "External encoder" technology object.
If the encoder belongs permanently to an axis, the "Axis" technology object is used to assign
parameters.
Note
In conjunction with ADI4, SIMOTION only supports encoders with 13-bit and 25-bit message
frames.
Encoder data
The encoder used in this example is a Siemens encoder, order number 6FX2 001-5HS24
with the following data:
Encoder parameters Value
Encoder type Rotary
Encoder type Cyclic absolute encoder (SSI)
Increments/revolution 8192
User data length 25
Message length 25
Message frame format PINETREE
Actual value protocol format GRAY
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