SEW-Eurodrive MOVIPRO Ethernet/IP - Page 233

13
Parameter setting
Parameter descriptions
Manual – MOVIPRO
®
with EtherNet/IP™ or Modbus/TCP Fieldbus Interface
233
P903 Reference travel type
Setting range: 0–8
Reference travel strategy with which the machine zero of a system is specified. This
defines a travel mode for searching for a reference cam, for example.
This parameter also specifies the search direction for the reference cam in the indi-
vidual referencing phases.
Use parameter P904 Referencing to zero pulse (→2234) to determine if the refer-
ence travel takes place to the edge change of the reference cam or the next zero
pulse of the encoder.
An operationally ready and enabled drive is prerequisite for carrying out the reference
travel. The reference travel type8 is an exception.
The following reference travel types are possible:
• Type 0: CCW zero pulse
– First search direction: CCW
– Reference point: CCW zero pulse from current position
– Machine zero: Reference position+reference offset
• Type 1: CW end of the reference cam
– First search direction: CCW
– Reference point: First zero pulse or falling edge to the left of the reference cam
– Machine zero: Reference position+reference offset
• Type 2: CW end of the reference cam
– First search direction: CW
– Reference point: First zero pulse or falling edge to the right of the reference
cam
– Machine zero: Reference position+reference offset
• Type 3: CW limit switch
– First search direction: CW
– Reference point: First zero pulse or falling edge to the left of the right limit
switch
– Machine zero: Reference position+reference offset
– Reference travel should take place to zero pulse.
• Type 4: Limit switch left
– First search direction: CCW
– Reference point: First zero pulse or falling edge to the right of the left limit
switch
– Machine zero: Reference position+reference offset
– Reference travel should take place to zero pulse.
• Type 5: No reference travel
– Reference point: Current position (referencing with drive enable)
– Machine zero: Reference offset
• Type 6: Reference cam flush with CW limit switch
– First search direction: CW
– Reference point: First zero pulse or falling edge to the left of the reference cam
16998413/EN – 12/2016