Baumer G1-G2-GB-GXxxx - Manual (Page 19)

Manual_ProGeber_V1-40_EN.doc 19/40 Baumer IVO GmbH & Co. KG
10.05.11 Villingen-Schwenningen, Germany
4.2.4 Counting direction
The counting direction offers two choices: "increasing clockwise" and "decreasing clockwise".
"Increasing clockwise" means that the position values increase in case of a clockwise rotation
(view from front of the encoder shaft), and decrease accordingly in case of "decreasing
clockwise".
Caution: The counting direction can be inverted via the hardware input V/ R !
As far as the hardware is concerned, the counting direction must always be set first
and afterwards the preset value (offset).
4.2.5 Preset (offset)
The encoder can be set to any start count required. Depending on the encoder model the
start count can be defined as target (preset) or as difference between running value and target
(offset).
Once programming is finalized, encoders set to „offset“ therefore are only adding the offset
value to the current position value at first.
Even after completed programming the offset value can be assigned as well as preset value
via the encoder’s reset input by triggering a „high“ impulse for at least 100 ms.
4.2.6 Revolutions
Maximal number of turns to be counted by the encoder. The possible domain is
between 1 and 65536 revolutions. According to the type of encoder, the domain is
either optional or has to correspond to a power of two 2
0 , 2 1 , 2 2 , ... 2 16 (1, 2, 4, ...
65536, depends on the encoder).
4.2.7 Steps / revolution
Number of steps defining one turn of the encoder shaft. Depending on the encoder’s interface,
the possible range lies between 2 and 8192 steps/turn. Any value within this range can be
selected. The maximum number of steps for encoders with parallel interface is 4096, with
standard SSI interface 8192 (high resolution activo encoders 262144 at singleturn range).