GXP2W Datasheet, PDF (3/4 Pages) Baumer IVO GmbH & Co. KG – Absolute encoders - SSI

Absolute encoders - SSI
Shaft with clamping or synchro flange
Optical multiturn encoder 13 bit ST / 12 bit MT
GXP2W - SSI
Terminal significance
UB
Encoder voltage supply.
GND
Encoder ground connection relating to UB.
Data+
Positive, serial data output of differential
linedriver.
Data-
Negative, serial data output of differential
linedriver.
Clock+
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.
Clock-
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.
Preset
Preset input for setting a preset anywhere
within the programmed encoder resolution.
The preset operation is triggered by a High
impulse and has to be in line with the
selected rotating direction UP/DOWN.
Connect to GND for maximum interference
immunity. Impulse duration >100 ms.
UP/DOWN
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. The rotating direction
may also be altered by programming.
TxD
Encoder transmitter output for RS232
programming interface.
RxD
Encoder receiver input for RS232 program-
ming interface.
Outputs 1, 3, 4 Special outputs.
Optional assignment to special functions.
Output 2
Output less funcion.
There must not be any external circuit.
GND-PRG
Separate ground for programming inter-
face.
Terminal assignment
Connector Core colour
Pin 1
violet
Pin 2
brown/white
Pin 3
green/white
Pin 4
yellow/white
Pin 5
grey/white
Pin 6
pink/white
Pin 7
blue/white
Pin 8
red/white
Pin 9
black/white
Pin 10
green/brown
Pin 11
green/grey
Pin 12
blue
Pin 13
yellow
Pin 14
brown
Pin 15
red
Pin 16
pink
Assignment
Data+
Data-
–
TxD
RxD
Clock+
Clock-
Output 1
Output 2
Output 3
Output 4
GND
Preset
UP/DOWN
UB
GND-PRG
11 ¹
12
2
10 16 13 ₃
9 _{15 14 4}
8
5
76
Please use cores twisted in pairs (for
example clock+ / clock-) for extensi-
on cables of more than 10 m length.
Trigger level
SSI
SSI-Clock
SSI-Data
Control inputs
Input level High
Input level Low
Input resistance
Circuit
Optocoupler
Linedriver RS485
Input circuit
>0.7 UB
<0.3 UB
10 kΩ
3
www.baumerivo.com