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INOVANCE TECHNOLGY EUROPE GmbH
SV660N Startup Procedure_EN_v1.4_20220826.docx
8.2 DATA RANGE IN THE ABSOLUTE POSITION LINEAR MODE
The absolute encoder records the single-turn position (H0B-71) and the number of revolutions (H0B-70). With a
single-turn resolution up to 8388608 (2
23
) pulses, the encoder can record 16-bit multi-turn data.
The multi-turn data range in the absolute position linear mode is –32768 to +32767. If the number of forward
revolutions is larger than 32767 or the number of reverse revolutions is smaller than –32768, E735.0 (Encoder
multi-turn counting overflow) will occur. In this case, set H0D-20 (200D-15h - Absolute encoder reset selection)
to 2 (Reset the encoder fault and multi-turn data) to reset the multi-turn data and perform homing again.
In special occasions, you can set H0A-36 (200A-25h - Multi-turn overflow fault of absolute encoder) to 1 (Hide)
to hide E735.0 or use absolute position linear mode 2.
Parameter H0B-07 shows the absolute position of the axis. With the default values of the drive, this parameter
has a range between 2 ^ 31 to 2 ^ 31. With this configuration the axis range is 512 turns. It can make 256 turns
in the positive direction and 256 turns in the negative direction before exceeding the limit of the parameter.
To increase the number of absolute encoder turns stored in parameter H0B-07, it is necessary to modify the
scaling of the axis (H05-07 and H05-09). The absolute multi-turn information is stored in the parameters H0B-
77 and H0B-79. The parameter H0B-07 is calculated from parameters H0B-77 and H0B-79. The multi-turn
information for these parameters is in the range of –32768 to +32767. Therefore, by modifying the scaling of
the axis, we can increase the multi-turn information stored in parameter H0B-07.
Absolute Gear Ratio Encoder Multi-turn Home Offset
position position
The below image shows the absolute position parameters range.
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