GA240.0301105 IVO [Baumer IVO GmbH & Co. KG], GA240.0301105 Datasheet - Page 3

• Manufacturer Part Number: GA240.0301105
• Description: Absolute encoders - SSI
• Manufacturer: IVO [Baumer IVO GmbH & Co. KG]

Absolute encoders - SSI
Shaft with clamping or synchro flange
Optical singleturn encoder 14 bit
GA240, GA241 - SSI
UB
GND
Data+
Data-
Clock+
Clock-
Zero setting
DATAVALID
UP/DOWN
Terminal significance
Encoder voltage supply.
Encoder ground connection relating to UB.
Positive, serial data output of differential
linedriver.
Negative, serial data output of differential
linedriver.
Positive SSI clock input.
Clock+ together with clock- forms a current
loop. A current of approx. 7 mA towards
clock+ input means logic 1 in positive logic.
Negative SSI clock input.
Clock- together with clock+ forms a current
loop. A current of approx. 7 mA towards
clock- input means logic 0 in positive logic.
Input for setting a zero point anywhere
within the programmed encoder resolution.
The zero setting operation is triggered by a
High impulse and has to be in line with the
selected direction of rotation (UP/DOWN).
Connect to GND after setting operation for
maximum interference immunity. Impulse
duration >100 ms.
Diagnostic output.
An error warning is given at level Low.
Important: Interferences must be drained
by the downstram electronics.
UP/DOWN counting direction input.
This input is standard on High. UP/DOWN
means ascending output data with clock-
wise shaft rotation when looking at flange.
UP/DOWN-Low means ascending values
with counterclockwise shaft rotation when
looking at flange.
3
Connector
Pin 1
Pin 2
Pin 3
Pin 4
Pin 5
Pin 6
Pin 7
Pin 8
Pin 9
Pin 10
Pin 11
Pin 12
SSI
SSI-Clock
SSI-Data
Control inputs
Input level High
Input level Low
Input resistance
Diagnostic outputs
Output level Low
Load Low
Terminal assignment
Trigger level
7
6
5
8
12
11
9
10
1
4
2
3
Core colour
brown
black
blue
beige
green
yellow
violet
brown/yellow DATAVALID
pink
black/yellow
–
–
Please use cores twisted in pairs (for
example clock+ / clock-) for extensi-
on cables of more than 10 m length.
Circuit
Optocoupler
Linedriver RS485
Input circuit
>0.7 UB
<0.3 UB
10 kΩ
Output circuit
NPN-OC 10 kΩ against UB
<0.5 V (I = 20 mA)
<20 mA
Assignment
UB
GND
Clock+
Data+
Zero setting
Data-
Clock-
UP/DOWN
–
–
–
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