Absolute
encoder, singleturn
Encoder with an output of clear, coded
information for each measuring step within one revolution. The data is saved in
the event of a power failure. |
Absolute
encoder multiturn
Encoder capable of clearly capturing
the number of revolutions and of yielding this output in addition to the
output of the singleturn absolute encoder. The data is saved in the event of a
power failure, and/or continues to be captured in de-energized
state. |
ASI
Asynchronous Serial Interface. A serial
trans-mission linked to a data transmission protocol. Driver hardware to
EIA RS485 or RS422. |
ASIC
IC specific to user. |
Resolution
For the singleturn encoders, the resolution
indicates the number of measuring steps per revolution.
For the multiturn encoders, the number
of measuring steps per revolution and the number of revolutions are indicated. |
Baud rate
Transmission frequency of serial interface
in bits per second. |
CAN-Bus
Multi-Master-Bus-System with two-wire
line. It is event-oriented and/or news-oriented.
Presently, standardized CAN protocols
under CAN open are specified.
For encoder: CiA DSP 406 |
Code Switching
Speed
Number of measuring steps per second
for absolute encoders. The maximum electric speed of encoders with 13-bit
resolution and 400 kHz switching speed is 3,000 RPM. |
Data valid
Diagnostic output for checking validity
of output data. |
Sense of
rotation (...)
Control input to determine the data
sequence, whether increasing clockwise or counter-clockwise. |
Enable
Control input allowing activation
of data outputs for absolute encoders. |
Incremental
encoder
Encoder sending an electric signal
(High/Low) at each measuring step. |
Deviation
of measuring step / Accuracy
Deviation between actual and measured
position. |
Zero-point
setting
Control input to set a zero point
at any position of the resolution range of an absolute encoder without
mechanical adjustment.
For programmable absolute encoders,
it is possible to also set an offset value via the zero-point setting. |
Profibus
DP
Master-Slave-Bus-System with two-wire
line. Line Bus with EIA RS485 hardware interface. Standardized Profibus
DP-protocol for encoder is specified. |
Scaling
Customized setting of encoder resolution.
The encoder calculates the desired customer resolution using the basic
resolution and the scaling factor. |
Store
Control input used to memorize the
data outputs of absolute encoders for safe read-outs. It is recommended
to use the Stored input especially in case of data codes of several steps. |
SSI
Synchronous Serial Interface. A serial
data transmission linked to an external pulse. |
SUCOnet
K
Bus-System, especially developed for
control units of Klöckner-Moeller. Driver hardware to EIA RS485. Maximum
Baud rate up to 375 kBd. |
Pulse +,
Pulse -
Control lines of SSI interface for
synchronous data transmission. Pulse + produces a current loop together
with Pulse - for potential-free take-over of pulse frequency in SSI encoders. |