G1M2H IVO [Baumer IVO GmbH & Co. KG], G1M2H Datasheet - Page 3

• Manufacturer Part Number: G1M2H
• Description: Absolute encoders - SSI
• Manufacturer: IVO [Baumer IVO GmbH & Co. KG]

Absolute encoders - SSI
Hollow shaft max. ø50.8 mm
Optical multiturn encoder 13 bit ST / 12 bit MT
G1M2H, G2M2H - SSI
UB
GND
Data+
Data-
Clock+
Clock-
Zero setting
DATAVALID
DATAVALID MT Diagnostic output for monitoring the
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 filtered by
the downstram electronics.
multiturn sensor voltage supply. Upon
dropping below a defined voltage level the
DV MT output is switched to Low.
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
Pin
Pin
Pin 7
Pin 8
Pin 9
Pin
Pin
Pin 12
SSI
SSI-Clock
SSI-Data
Control inputs
Input level High
Input level Low
Input resistance
Terminal assignment
Trigger level
4
5
6
10
11
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
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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
Assignment
UB
GND
Clock+
Data+
Zero setting
Data-
Clock-
UP/DOWN
DATAVALID MT
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