5 Commissioning
Bauer
Measured value adaptation
24
GEL 235/235x/203x
5.3 Measured
value
adaptation
Prerequisite for the adjustments described in the following:
●
The encoder is supplied with voltage.
●
The machine axis with coupled encoder can be turned manually (mechanically or
electrically).
5.3.1
PRESET (SSI, analog)
By means of the PRESET function the actual position is set to the centre of the meas-
uring range and saved permanently until a new PRESET procedure is triggered.
With single turn encoders, that means the half of definition range (SSI, analog). With
multiturn encoders (SSI), the actual position is set to the half number of revolutions with
single turn part = 0.
Turn the machine axis to the desired PRESET position.
Apply supply vV
S
to the PRESET input of the connector for at least 0.1 s.
For encoders with optional PRESET button:
Depress the button through the opening in the back side with a dull point (e.g.
a match).
Example for an analog encoder:
U, I
U, I
10 V
20 mA
5 V
12 mA
0 V
4 mA
Pos
Pos
Z
P
Min
Max
P
Min
Max
PRESET
Pos
Position of the machine axis
Min, Max Working range of the machine (arbitrary determination)
P
PRESET position
Z
Zero position of the encoder (360°
→
0° transition)
GEL 2035 multiturn: This procedure is also used for putting an encoder in the sleep
mode to save battery power. The encoder must be disconnected from the power
supply to do so; signal voltage from 3 to 30 VDC (see also section
).
5.3.2 Teach-in
(analog)
Turn machine axis into the position for the lower working range limit.
Apply +V
S
to T_Low input for at least 0.1 s.
Turn machine axis into the position for the upper working range limit.
Apply +V
S
to T_High input for at least 0.1 s.
