SEW-Eurodrive MOVIPRO Ethernet/IP - Page 232

13
Parameter setting
Parameter descriptions
Manual – MOVIPRO
®
with EtherNet/IP™ or Modbus/TCP Fieldbus Interface
232
P900 Reference offset
Setting range: -(2
31
-1)–0–(2
31
-1)
Zero position correction for calculating the machine zero
All absolute positioning commands refer to the machine zero.
The machine zero is calculated as follows:
Machine zero = reference position+reference offset
The reference position is determined in the reference travel.
The reference offset always refers to the encoder. This encoder can be a motor en-
coder, an external encoder or a DIP encoder. Select the encoder in the parameter
P941 Source actual position (→2239).
The actual positions are displayed in the following IPOS
PLUS®
variables:
• The external encoder in the IPOS
PLUS®
variable H510 Actual position.
• The motor encoder in the IPOS
PLUS®
variable H511 Actual position.
Reference offset becomes active after reference travel has been completed success-
fully.
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
P901 Reference speed1
Setting range: 0–200–6000min
-1
Specifies the travel speed for the first part of the reference travel until reaching the ref-
erence cam.
Stop rampt13 (→2197) is always used to change the speed. The search directions
during reference travel are determined by the respective reference travel type.
P902 Reference speed2
Setting range: 0–50–6000min
-1
Specifies the travel speed for the second part of the reference travel from leaving the
reference cam until reaching the first zero pulse.
Stop rampt13 (→2197) is always used to change the speed. The search directions
during reference travel are determined by the respective reference travel type.
16998413/EN – 12/2016