1PosSSI/Digital
5.10 Technical specifications
ET 200S Positioning
Operating Instructions, 05/2007, A5E00124871-04
239
Technical Data of the 1PosSSI/Digital
Data for the Digital Outputs
Output voltage
• Rated value
• 0 signal
• 1 signal
DC 24 V
≤ 3 V
≥ L+ -1 V
Output current
• 0 signal (leakage current)
• 1 signal
– Rated value
– Permitted range
≤ 0.3 mA
0.5 A
7 mA to 0.6 A
Switch rate
• Resistive load
• Inductive load
• Lamp load
100 Hz
2 Hz
≤ 10 Hz
Lamp load ≤5 W
Output delay (resistive load, output current 0.5 A)
• At 0 to 1
• At 1 to 0
typ. 150 µs
typ. 150 µs
Short-circuit protection of the output Yes
Threshold on 0.7 A to 1.8 A
Inductive extinction Yes; L+ -(55 to 60 V)
Digital input control Yes
Cable lengths
• Unshielded
• Shielded
600 m
1000 m
Encoder input SSI
Position detection Absolute
Differential signals for SSI data and SSI clock According to RS422
Data transmission rate and line length with
absolute encoders (twisted pair and shielded)
• 125 kHz max. 320 m
• 250 kHz max. 160 m
• 500 kHz max. 60 m
• 1 MHz max. 20 m
• 2 MHz max. 8 m
Age of the encoder value
• Max. (2 * frame runtime) + 64 µs
• Min. frame runtime
Frame runtime
• 125 kHz
• 250 kHz
• 500 kHz
• 1 MHz
• 2 MHz
Monoflop time
1
13 Bit
112 µs
56 µs
28 µs
14 µs
7 µs
64 µs
25 Bit
208 µs
104 µs
52 µs
26 µs
13 µs
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