Sensor Signals - IFM Electronic efector 110 GI5002 Instrucciones Operativas

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10. Sensor signals

Takteingang (TE)
Clock input (TE)
Ausgang
Output
The fail-safe switch has to be operated with a clock signal on its
clock input. The clock input signal (TE) must meet the defined time
conditions.
If the damping element is in zone 2 and there is no sensor fault, the
clock input signal is inverted and transferred to the output.
The delay time td [clock input (TE) → output] is ≤ 1 ms (typ. 220 µs).
The output is switched off if the clock input signal (TE) is "high".
If during this time a fault or removal from zone 2 occurs, the output
remains switched off.
A deviation from the time diagram at the output represents a fault.
If the damping element is in zone 2, the power-on delay time is max.
2.5 s + T.
Enabling takes place with a falling edge at the clock input.
In case of safety-related faults the fault detection time of the switch
is the duration of one period, but at least 360 ms.
Cross-bridging must be detected by the connected PLC or evaluation
unit.
16
T1
1
0
1
0
td
T
T2
T1 ≥ 120 ms
T2 ≥ 120 ms
T = 240 ... 500 ms

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