SEW-Eurodrive MOVIPRO Ethernet/IP - Page 234

13
Parameter setting
Parameter descriptions
Manual – MOVIPRO
®
with EtherNet/IP™ or Modbus/TCP Fieldbus Interface
234
– Machine zero: Reference position+reference offset
– Reference cam and limit switches must be flush.
• Type 7: Reference cam flush with CCW limit switch
– First search direction: CCW
– Reference point: First zero pulse or falling edge to the right of the reference
cam
– Machine zero: Reference position+reference offset
– Reference cam and limit switches must be flush.
• Type 8: Resetting of encoder position for drive not ready for operation
– Reference point: Current position (referencing with drive enable)
– Machine zero: Reference offset
– Reference travel can take place when the drive is not enabled.
P904 Reference travel to zero pulse
Setting range: Yes/no
• Set to "Yes": Reference travel takes place to the zero pulse of the selected
IPOS
PLUS®
encoder.
• Set to "No": Reference travel takes place to the falling edge of the reference cam.
P905 Hiperface offset (motor)
Setting range: -(2
31
-1)–0–(2
31
-1)
Specifies the zero point of the encoder display.
Use this parameter to define the machine zero without reference travel. It adds or sub-
tracts the offset from the encoder value. The IPOS
PLUS®
variable H511 Actual position
of the motor encoder is calculated directly after input of values as follows:
H511=Encoder value-Hiperface-Offset
A HIPERFACE
®
multi-turn encoder must be referenced once, a HIPERFACE
®
single-
turn encoder must always be referenced.
INFORMATION
In the case of a reference travel with HIPERFACE
®
encoder, the value of the para-
meter P905 Hiperface-Offset (Motor) is recalculated and overwritten as follows:
Hiperface-offset=encoder value-reference offset
P906 Cam distance
Contains the number of increments from leaving the reference cam to the zero pulse
of the motor encoder. The parameter is displayed following successfully completed
reference travel.
Ideally, the cam distance is half the encoder resolution after 4x evaluation. In order to
approach the ideal case, you may have to adjust the cam.
P91. IPOS travel parameters
P910 Gain X controller
Setting range: 0.1–0.5–32
16998413/EN – 12/2016