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Absolute encoders - SSI
Through hollow shaft up to ø14 mm
Optical singleturn encoders 14 bit
G0A2H
Features
–– Encoder singleturn / SSI
–– Optical sensing method
–– Resolution: 14 bit
–– Through hollow shaft up to ø14 mm
–– High reliability by self-diagnostics
–– Counting direction input
–– Electronic setting of zero point
Optional
–– Corrosion protection for offshore applications
Technical data - mechanical design
Voltage supply
Size (flange)
ø58 mm
Shaft type
ø10 mm (through hollow shaft)
ø12 mm (through hollow shaft)
ø14 mm (through hollow shaft)
Protection DIN EN 60529
IP 54, IP 65 (optional)
Operating speed
≤6000 rpm (mechanical)
≤6000 rpm (electric)
10...30 VDC
Reverse polarity protection Yes
Consumption w/o load
≤50 mA (24 VDC)
Initializing time typ.
20 ms after power on
Interfaces
SSI, Incremental A 90° B
(optional)
Function
Singleturn
Steps per turn
≤16384 / 14 bit
Incremental output
2048 pulses A90°B
+ inverted
Absolute accuracy
±0.025 °
Sensing method
Optical
Code
Gray or binary
Code sequence
CW/CCW coded by connection
Inputs
SSI clock
Control signals UP/DOWN and
zero
Output stages
SSI data: linedriver RS485
Diagnostic and incremental
outputs
Interference immunity
DIN EN 61000-6-2
Emitted interference
DIN EN 61000-6-4
Diagnostic function
Self-diagnosis
Approval
UL approval / E63076
1
Starting torque
≤0.04 Nm (+25 °C, IP 54)
Rotor moment of inertia
20 gcm²
Materials
Housing: aluminium
Flange: aluminium
Operating temperature
-25...+85 °C
-40...+85 °C (optional)
Relative humidity
95 % non-condensing
Resistance
DIN EN 60068-2-6
Vibration 10 g, 16-2000 Hz
DIN EN 60068-2-27
Shock 200 g, 6 ms
Weight approx.
400 g
Connection
Connector M23, 12-pin
Cable 1 m
www.baumer.com/motion
14/6/2016
Technical data - electrical ratings
Subject to modification in technic and design. Errors and omissions excepted.
–– Available with additional incremental output
G0A2H with through hollow shaft
Absolute encoders - SSI
Through hollow shaft up to ø14 mm
Optical singleturn encoders 14 bit
G0A2H
Part number
Accessories
G0A2H.
Connectors and cables
21
81
30
32
90
92
8
9
0
1
B
4
5
F
Connection
Connector M23, 12-pin, radial
Connector M23, 12-pin, radial,
for incremental output 14/16
Cable 1 m, radial
Cable 1 m, radial,
for incremental output 14/16/17
Z 130.003
Female connector M23, 12-pin, 2 m cable
Z 130.005
Female connector M23, 12-pin, 5 m cable
Z 130.007
Female connector M23, 12-pin, 10 m cable
Z 182.001
Female connector M23, 12-pin, without cable
(incr.)
Z 182.003
Female connector M23, 12-pin, 2 m (incr.)
Mounting accessories
Voltage supply / signals
10...30 VDC / gray code 13 bit
10...30 VDC / binary code 13 bit
10...30 VDC / gray code 14 bit
10...30 VDC / binary code 14 bit
Through hollow shaft
ø10 mm, without pin
ø10 mm, pin 15 mm
ø12 mm, without pin
ø12 mm, pin 15 mm
ø12 mm, pin 9.5 mm
ø14 mm, without pin
ø14 mm, pin 15 mm
ø14 mm, pin 9.5 mm
Z 119.023
Spring coupling for encoders with ø58 mm
housing
Z 119.024
Torque support and spring washer for
encoders with 9.5 mm pin
Z 119.041
Torque support by rubber buffer for encoders
with 15 mm pin
Z 119.050
Spring coupling for one-side attachment,
length 35 mm
Z 119.053
Spring coupling for motor’s fan guard
Z 119.072
Spring coupling for encoders with ø58 mm
housing, hole distance 73 mm
Z 119.073
Spring coupling for encoders with ø58 mm
housing, hole distance 68 mm
Z 119.076
Spring coupling for one-side attachment,
length 115 mm
Z 119.082
Spring coupling for encoders with ø58 mm
housing, hole distance 63 mm
Data transfer
tp
* On request
T=1/f
tm
clock
data
2
tv
bit n
bit n-1
bit 3
bit 2
bit 1
Clock frequency f
62.5...1500 kHz
Duty cycle of T
40...60 %
Delay time tv
150 ns
Monoflop time tm
26 µs + T/2
Clock interval tp
30 µs
www.baumer.com/motion
Subject to modification in technic and design. Errors and omissions excepted.
A1
A5
Pulses / Incremental output
No incremental output
2048 pulses / push-pull
2048 pulses / RS422
2048 periods / SinCos*
Female connector M23, 12-pin, without cable
14/6/2016
05
14
16
17
Z 130.001
Absolute encoders - SSI
Through hollow shaft up to ø14 mm
Optical singleturn encoders 14 bit
G0A2H
Terminal significance
Terminal assignment
UB
Encoder voltage supply.
G0A2H
GND
Encoder ground connection relating to UB.
Connector
Core colour
Assignment
Data+
Positive, serial data output of differential
linedriver.
Pin 1
brown
UB
Negative, serial data output of differential
linedriver.
Pin 2
black
GND
Pin 3
blue
Clock+
Pin 4
beige
Data+
Pin 5
green
Zero setting
Pin 6
yellow
Data-
Pin 7
violet
Clock-
Pin 8
brown/yellow UBminOK
Pin 9
pink
UP/DOWN
Pin 10-12
–
–
Clock-
Zero setting
UBminOK
UP/DOWN
Incremental
Outputs
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.
G0A2H with incremental tracks | SinCos
Diagnostic output.
Level low indicates the operating voltage
has dropped below the minimum limit.
UP/DOWN counting direction input.
This input is standard on High. UP/DOWN
means ascending output data with clockwise shaft rotation when looking at flange.
UP/DOWN-Low means ascending values
with counterclockwise shaft rotation when
looking at flange.
Incremental tracks A 90° B and inverted.
Connector
Core colour
Assignment
Incremental
SinCos
Pin 1
brown
UB
UB
Pin 2
white
GND
GND
Pin 3
blue
Clock+
Clock+
Pin 4
green
Data+
Data+
Pin 5
grey
Zero setting
Zero setting
Pin 6
yellow
Data-
Data-
Pin 7
red
Clock-
Clock-
Pin 8
red/blue
Track B inv.
Cosine
Pin 9
pink
UP/DOWN
UP/DOWN
Pin 10
violet
Track A inv.
Sine
Pin 11
black
Track A
Sine
Pin 12
grey/pink
Track B
Cosine
8
7
10
12
2
Please use cores twisted in pairs (for
example clock+ / clock-) for extension cables of more than 10 m length.
3
6
5
3
9 1
11
4
www.baumer.com/motion
Subject to modification in technic and design. Errors and omissions excepted.
Clock+
14/6/2016
Data-
Absolute encoders - SSI
Through hollow shaft up to ø14 mm
Optical singleturn encoders 14 bit
G0A2H
Trigger level
SSI
Circuit
Incremental outputs
Linedriver RS422
SSI-Clock
Optocoupler
Output level High
>2.5 V (I = -20 mA)
SSI-Data
Linedriver RS485
Output level Low
<0.5 V (I = 20 mA)
Load High / Low
<20 mA
Control inputs
Input circuit
Input level High
>0.7 UB
Outputs
SinCos
Input level Low
<0.3 UB
Output level
1 Vpp ±10 %
Input resistance
10 kΩ
Load
<10 mA
Incremental outputs
Output circuit
Push-pull circuit-proof
Diagnostic output
Output level High
>UB -3.5 V (I = -20 mA)
Output level Low
<0.5 V (I = 20 mA)
Output level Low
≤0.5 V (I = 20 mA)
Load High / Low
<20 mA
Load Low
≤40 mA
NPN-Open Collector – 10 kΩ to UB internally connected
Dimensions
[
4
www.baumer.com/motion
Subject to modification in technic and design. Errors and omissions excepted.
ƒ
[
14/6/2016
0
¡IJ
¡+
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