SIEMENS
11/46
Siemens MD 50.1 · 2015
Motor options
Mounted components
Encoder
11
■
Functionally safe rotary encoder
Absolute encoder IA 8.5883
This absolute encoder is available for motor sizes 71 to 200.
Fig. 11/41
Absolute encoder IA 8.5883
Technical specifications
Absolute encoder
IA 8.5883FS2
IA 8.5883FS3
Supply voltage
U
P
5 V
DC
± 5 %
Maximum current consumption without load
≤
80 mA
Reverse polarity protection for supply voltage
Yes
Absolute position values
SSI
• Output driver
RS 485 transceiver type
• Permitted load/channel
Max. ± 20 mA
• Signal level
HIGH type 3.8 V
LOW with I load = 20 mA type 1.3 V
• Positions per revolution
8 192 (13 bit)
• Differentiable revolutions
4 096 (12-bit)
• Code
Gray
• SSI clock rate
50 kHz ... 2 MHz
• Monoflop time
≤
15
μ
s
• Data refresh rate
ST resolution
≤
1
μ
s
SinCos signals
~1 V
pp
• Max. frequency -3 dB
400 kHz
• Signal level
1 V
pp
(± 10 %)
• Short-circuit strength
Yes (short-circuit proof to 0 V or output, only one channel at a time, when supply voltage is
correctly applied)
• Pulses per revolution
2 048
• Outputs
Sine signal: B, B_Inv
Cosine signal: A, A_Inv
Starting torque (at 20 °C/68 °F)
< 0.03 Nm
Moment of inertia of rotor
7 x 10
-6
kgm
2
Max. permissible mechanical speed
≤
3 000 rpm
Vibration (10 ... 150 Hz)
200 m/s
2
(EN 60068-2-6)
Shock resistance (11 ms)
500 m/s
2
(EN 60068-2-27)
Degree of protection
IP 65
Connection system
Tangential 1 m cable with coupling socket
17-pole, M23 with 0° coding
Weight, approx.
0.45 kg
Certification
CE, cUL, SIL/PL
UL file
File 224618
CE-compliant
(compliance with applicable national and
regional laws, standards and regulations is
also essential)
EMC Directive 2004/108/EC
Machinery Directive 2006/42/EC
RoHS Directive 2011/65/EU
Order code
Q77
1)
Q78
1)
1)
The functionally safe rotary encoder is not compatible with worm geared motors S
© Siemens AG 2015