EN

Absolute encoders - SSI
Solid shaft with clamping flange, stainless steel housing
Optical singleturn encoders 14 bit
GE244
Features
–– Encoder singleturn / SSI
–– Stainless steel design V4A
–– Optical sensing method
–– Resolution: max. 14 bit
–– Clamping flange
–– Extreme resistance to shock and vibration
–– Electronic setting of zero point
–– Available with additional incremental output
–– Viton sealing resistant against chemical agents
Technical data - mechanical design
Voltage supply
Size (flange)
ø58 mm
Reverse polarity protection Yes
10...30 VDC
Shaft type
ø10 mm solid shaft
Consumption w/o load
≤50 mA (24 VDC)
Flange
Clamping flange
Initializing time typ.
20 ms after power on
Protection DIN EN 60529
IP 67
Interfaces
SSI, Incremental A 90° B
(optional)
Operating speed
≤10000 rpm (mechanical)
≤6000 rpm (electric)
Function
Singleturn
Starting torque
≤0.03 Nm (+25 °C)
Steps per turn
≤16384 / 14 bit
Rotor moment of inertia
14.5 gcm²
Incremental output
2048 pulses A90°B
+ inverted
Admitted shaft load
≤20 N axial
≤40 N radial
Absolute accuracy
±0.025 °
Materials
Sensing method
Optical
Code
Gray or binary
Code sequence
CW/CCW coded by connection
Housing:
stainless steel 1.4305 or 1.4404
Flange:
stainless steel 1.4305 or 1.4404
Inputs
SSI clock
Control signals UP/DOWN and
zero
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.
600 g
Connection
Connector M23, 12-pin
Output stages
SSI data: linedriver RS485
Diagnostic outputs push-pull
Incremental: push-pull or
linedriver RS422
Interference immunity
DIN EN 61000-6-2
Emitted interference
DIN EN 61000-6-4
Diagnostic function
Self-diagnosis
Approval
UL approval / E63076
1
www.baumer.com/motion
14/6/2016
Technical data - electrical ratings
Subject to modification in technic and design. Errors and omissions excepted.
GE244 with clamping flange
Absolute encoders - SSI
Solid shaft with clamping flange, stainless steel housing
Optical singleturn encoders 14 bit
GE244
Part number
Accessories
Clamping flange
Connectors and cables
A
05
14
16
17
Pulses / Incremental output
No incremental output
2048 pulses / push-pull
2048 pulses / RS422
2048 periods / SinCos
Female connector M23, 12-pin, stainless
steel, without cable
Z 189.007
Female connector M23, 12-pin, stainless
steel, 10 m cable
Mounting accessories
Z 119.017
Mounting adaptor for clamping flange (M3)
Data transfer
Connection
A1 Connector M23, 12-pin, radial
A5 Connector M23, 12-pin, radial,
for incremental output 14/16/17
30
32
90
92
Z 189.001
tp
T=1/f
tm
clock
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
data
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
Subject to modification in technic and design. Errors and omissions excepted.
Flange / Solid shaft
A Clamping flange / ø10 mm, IP 67
tv
2
www.baumer.com/motion
14/6/2016
GE244.
Absolute encoders - SSI
Solid shaft with clamping flange, stainless steel housing
Optical singleturn encoders 14 bit
GE244
Terminal significance
Terminal assignment
UB
Encoder voltage supply.
GE244
GND
Encoder ground connection relating to UB.
Connector
Core colour
Assignment
Data+
Positive, serial data output of differential
linedriver.
Pin 1
brown
UB
Data-
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
black/yellow
–
Pin 11-12
–
–
Zero setting
UBminOK
UP/DOWN
Incremental
Outputs
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.
GE244 with inremental tracks
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
Pin 1
brown
UB
Pin 2
white
GND
Pin 3
blue
Clock+
Pin 4
green
Data+
Pin 5
grey
Zero setting
Pin 6
yellow
Data-
Pin 7
red
Clock-
Pin 8
red/blue
Track B inv.
Pin 9
pink
UP/DOWN
Pin 10
violet
Track A inv.
Pin 11
black
Track A
Pin 12
grey/pink
Track B
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-
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.
14/6/2016
Clock+
Absolute encoders - SSI
Solid shaft with clamping flange, stainless steel housing
Optical singleturn encoders 14 bit
GE244
Trigger level
Incremental outputs
Output circuit
Push-pull circuit-proof
SSI
Circuit
Output level High
>UB -3.5 V (I = -20 mA)
SSI-Clock
Optocoupler
Output level Low
<0.5 V (I = 20 mA)
SSI-Data
Linedriver RS485
Load High / Low
<20 mA
Control inputs
Input circuit
Input level High
>0.7 UB
Input level Low
<0.3 UB
Input resistance
10 kΩ
Incremental outputs
Linedriver RS422
Output level High
>2.5 V (I = -20 mA)
Output level Low
<0.5 V (I = 20 mA)
Load High / Low
<20 mA
Diagnostic output
NPN-Open Collector – 10 kΩ to UB internally connected
Output level Low
≤0.5 V (I = 20 mA)
Load Low
≤40 mA
Dimensions
GE244 - clamping flange
“
0[[ƒ
¡
¡
¡ K
¡ I
59
GE244 - connector dimensions
4
www.baumer.com/motion
14/6/2016
Subject to modification in technic and design. Errors and omissions excepted.