Parameter Settings When Using a Batteryless Multiturn Absolute Encoder
Parameter Meaning When Enabled Classification
Pn002
n.0
(default
setting)
Use the encoder as a
batteryless multiturn
absolute encoder. A bat-
tery is not required.
After restart Setup
n.1
Use the encoder as an
incremental encoder. A
battery is not required.
n.2
Use the encoder as a
single-turn absolute
encoder. A battery is not
required.
NOTICE!
Install a battery at either the host controller or on the Encoder
Cable.
If you install batteries both at the host controller and on the Encoder
Cable at the same time, you will create a loop circuit between the bat-
teries, resulting in a risk of damage or burning.
7.9.2 Connecting an Absolute Encoder
You can get the position data from the absolute encoder with PROFINET communica-
tions. Therefore, it is not necessary to wire the PAO, PBO, and PCO (Encoder Divided
Pulse Output) signals.
If they need to be wired, refer to the following section.
Ä
Chap. 5.5.3 ‘Wiring the SERVOPACK to the Encoder’ page 108
Ä
Chap. 5.6.3 ‘I/O Signal Wiring Examples’ page 120
7.9.3 Structure of the Position Data of the Absolute Encoder
The position data of the absolute encoder is the position coordinate from the origin of the
absolute encoder.
If you use the encoder divided pulse output (PAO, PBO, and PCO) signals to get the posi-
tion information, the position data from the absolute encoder contains the following two
items.
n The number of rotations from the origin of the encoder coordinate system (called the
multiturn data)
n The position (number of pulses) within one rotation
The position data of the absolute encoder is as follows:
Position data of absolute encoder = Multiturn data × Number of pulses within one
encoder rotation (setting of Pn212) + Position (number of pulses) within one rotation.
For a single-turn absolute encoder, the multiturn data is 0.
Sigma-7 Series SERVOPACKs
Application Functions
Absolute Encoders > Structure of the Position Data of the Absolute Encoder
| | PROFINET Communications - SIEP YEUOC7P 02A Revision 0 | en | 229
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