Siemens simatic et 200s Operating Instructions Manual page 305

Technical Data of the 1PosSSI/Analog
Data for selecting an actuator
Output range (rated value)
Load resistance
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•
•
Destruction limit against voltages/currents applied
from outside
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•
Connection of actuators
•
Encoder input SSI
Position detection
Differential signals for SSI data and SSI clock
Data transmission rate and cable lengths for
absolute encoders (twisted-pair and shielded)
Age of the encoder value
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Frame runtime
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Monoflop time
Status, Diagnostics
Change in actual value (up)
Change in actual value (down)
Status display positioning in operation
Status display DI0 (minus hardware limit switch)
Status display DI1 (plus hardware limit switch)
Status display DI2 (reducing cam)
Group error on the 1PosSSI/Analog
Diagnostic information
Response Times
Update rate for feedback messages
Response time at the switchover or switch-off
point
Latch response time
Encoders with a monoflop time greater than 64 µs, cannot be used with the 1PosSSI/Analog.
1
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
For capacitive load
Short-circuit protection
Short-circuit current
Voltage to the outputs against MANA
Current
2-conductor connection
Max. (2 * frame runtime) + 64 µs
Min. frame runtime
125 kHz
250 kHz
500 kHz
1 MHz
2 MHz
1
6.10 Technical Specifications of the 1PosSSI/Analog
±10 V
Min. 1.0 kΩ
max. 1 µF
yes
ca. 25 mA
Max. 15 V continuous; 75 V for max. 1 s (pulse
duty factor 1/20)
Max. DC 50 mA
No compensation for surge impedance
Absolute
According to RS422
125 kHz max. 320 m
•
250 kHz max. 160 m
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500 kHz max. 60 m
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1 MHz max. 20 m
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2 MHz max. 8 m
•
13 Bit
112 µs
56 µs
28 µs
14 µs
7 µs
64 µs
UP LED (green)
DN LED (green)
LED POS (green)
LED 9 (green)
LED 13 (green)
LED 14 (green)
SF LED (red)
Yes
2 ms
Output delay + Frame runtime + 30 µs
Typ. 400 µs + age of encoder value
1PosSSI/Analog
25 Bit
208 µs
104 µs
52 µs
26 µs
13 µs
305