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Manual PD4-C (USB)
8 General concepts
Version: 1.4.1 / 22.07.2016 / FIR-v1626
36
Positional data
All positional values in the open loop and closed loop mode are specified in the resolution of the virtual
position encoder. This is calculated from the encoder cycles (608F
:1
h
(Encoder Increments)) per
motor revolutions (608F
:2
h
(Motor Revolutions)) multiplied by the polarity of the axis in object 607E
bit 0. If bit 0 in object 607E
h
is set to the value "1", this corresponds to a polarity reversal, or the value
"-1" in the formula:
Motor revolutions (608F
h
:2)
Encoder cycles (608F
h
:1)
Resolution of the position encoder = polarity (607E
h
Bit 0) x
If the value of 608F
:1
h
or 608F
:2
h
are set to "0", the motor controller continues computing internally
with a "1". The factory settings are:
•
:1
h
= "2000"
•
h
:2
h
= "1"
•
Polarity 607E
h
bit 0 = "0" (does not correspond to a polarity reversal)
The resolution of the connected position encoder is set in object 2052
.