ATD 07S A 4

Absolute encoders - SSI
Blind hollow shaft ø4 mm
Magnetic singleturn encoders 12 bit
ATD 07S A 4
Features
–– Encoder singleturn / SSI
–– Magnetic sensing
–– Resolution: singleturn 12 bit
–– Blind hollow shaft ø4 mm
–– Cable output radial
–– Clamping ring torsion-proof
Technical data - mechanical design
Voltage supply
Size (flange)
ø24 mm
Reverse polarity protection Yes
Shaft type
ø4 mm (blind hollow shaft)
Consumption w/o load
≤40 mA (24 VDC)
Protection DIN EN 60529
IP 65
Interface
SSI
Operating speed
Function
Singleturn
≤10000 rpm (mechanical)
≤10000 rpm (electric)
Steps per turn
4096 / 12 bit
Starting torque
≤0.008 Nm (+20 °C)
Sensing method
Magnetic
Materials
Code
Gray
Housing: aluminium
Shaft: stainless steel
Code sequence
CW: ascending values with
clockwise sense of rotation;
looking at mounting surface
Operating temperature
-20...+85 °C
Relative humidity
90 % non-condensing
Resistance
DIN EN 60068-2-6
Vibration 10 g, 55-2000 Hz
DIN EN 60068-2-27
Shock 100 g, 11 ms
Weight approx.
50 g
Connection
Cable 1 m
Motor shaft tolerance
0.25 mm axial
0.1 mm radial
Mounting kit
101
Output stage
8...26 VDC
SSI data: linedriver RS485
1
www.baumer.com/motion
7/10/2013
Technical data - electrical ratings
Subject to modification in technic and design. Errors and omissions excepted.
ATD 07S A 4 with blind hollow shaft
Absolute encoders - SSI
Blind hollow shaft ø4 mm
Magnetic singleturn encoders 12 bit
ATD 07S A 4
Part number
ATD 07S A 4 12
SS
GR KR1
S
4
IP65
101
Mounting kit
101 Mounting accessory kit 101
Protection
IP65 IP 65
Blind hollow shaft
4 ø4 mm
Operating temperature
S -20...+85 °C
Connection
KR1 Cable 1 m, radial
Output signals
GR Gray code
Interface
SS Serial SSI
Resolution
12 12 bit singleturn
Data transfer
T=1/f
tm
clock
bit n
bit n-1
bit 3
bit 2
Clock frequency f
80...1000 kHz
Duty cycle of T
40...60 %
Delay time tv
150 ns
Monoflop time tm
20 µs + T/2
Clock interval tp
26 µs
bit 1
Subject to modification in technic and design. Errors and omissions excepted.
tv
2
www.baumer.com/motion
7/10/2013
data
Absolute encoders - SSI
Blind hollow shaft ø4 mm
Magnetic singleturn encoders 12 bit
ATD 07S A 4
SSI
Circuit
ATD 07S A 4
SSI-Clock
Receiver RS485
Core colour
Assignment
SSI-Data
Linedriver RS485
green
clock-
yellow
clock+
grey
data+
pink
data-
Terminal significance
UB
Encoder supply voltage.
GND
Encoder ground connection relating to UB.
red
UB
Data+
Positive, serial data output of differential
linedriver.
blue
GND
transparent
Shield/Housing
Data-
Negative, serial data output of differentiallinedriver.
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.
Subject to modification in technic and design. Errors and omissions excepted.
Terminal assignment
Dimensions
flexible
torquesupport
24
ø2.2
ø24
option:
cable, axial, ... m
KA...
ø33
ø2
9
max. 8
1 cylinder head screw
DIN 912 - M1.6x6 12.9
A/F1.5
2.95
tightening torque
max. 0.20 Nm
ø4H6x9
3 spacers
ø4g6
M2
mounting side
(proposition)
cable, radial, ... m
KR...
mounting
kit 101
(standard)
038- 1
3
www.baumer.com/motion
7/10/2013
Trigger level
Absolute encoders - SSI
Blind hollow shaft ø4 mm
Magnetic singleturn encoders 12 bit
4
www.baumer.com/motion
7/10/2013
Subject to modification in technic and design. Errors and omissions excepted.
ATD 07S A 4