Siemens SIMOTION Equipment Manual page 89

Switching frequency of the outputs, max.
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•
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Protection
1) Data for: V
The digital inputs are protected against polarity reversal up to -30 V
2)
Up to and including hardware version "C" for D410-2 DP or "B" for D410-2 DP/PN
3)
Max. switching frequency D410‑2
The max. switching frequency of the hardware depends on the load and is up to 4 kHz for an
ohmic load of 0.5 A (typical value; low‑high ratio = 50:50; short cable lengths).
Logic control of the digital output is also a limiting factor.
• If a DO 8...15 is set or reset via the TO cam/TO cam track, up to 2 edges are possible per servo
cycle
→ with servo cycles of at least 500 µs, a max. switching frequency of 2 kHz is achieved
• if a DO 8...15 is set or reset from the user program, no more than 1 edge per servo cycle is
possible.
→ with servo cycles of at least 500 µs, a max. switching frequency of 1 kHz is achieved
The max. achievable switching frequency can also be limited by the CU parameter p0799[0]
(sampling time of the inputs/outputs of the CU) or p2048 (PROFIdrive PZD sampling time).
Reproducibility
The reproducibility at the measuring input input depends on the edge steepness of the
measurement signal.
Generally, the following is valid: The steeper the edges of the input signal are, the easier it is to
reproduce the measurement results.
Sloping signals are achieved by switching the signal level to "active". This is typically with rising
edges as the signal here is "actively" switched to HIGH by the digital output (example: Output of
a TM17 module: Rising edge).
Falling edges typically have less edge steepness (signal level that falls slowly), as the signal level
is "not actively" forced to LOW (example: Output of a TM17 module: Falling edge).
Recommendation: Where the connected components do not have special output drivers, the
recommendation is to use the rising edges for measurements.
SIMOTION D410-2
Equipment Manual, 07/2021, A5E33446720B
With resistive load
With inductive load
With lamp load (max. 5 W)
= 24 V; load 48 Ω; high ("1") = 90% V
cc
5.4 Interfaces and performance features
• 4 kHz
• 0.5 Hz
• 10 Hz
Short circuit, ground fault and overload proof
Automatic restart after overload tripping
; low ("0") = 10% V
out out
Technical data
89