Lenze ELCAMZIxxx4SNNPSNN (LCU122) - Manual (Page 115)

Safety engineering
Safe inputs and safe outputs
Safe inputs
7

115 EDSLCMX3024-SPS EN 5.0
Specification Sensor type
Passive Active
Discrepancy time 30 s
Input delay 4 ms 0 ms
Input filter time for test pulses 15 ms
Repetition rate of the test pulses Is defined by the clock outputs CLA
and CLB
> 50 ms
Error response EC_S0
Confirmation via PROFIsafe
Tab. 7-2 Specification of the sensor connections
Explanations
Discrepancy time
ƒ Maximum time in which both channels of a safe input may have non-equivalent
states without the safety engineering noticing an error.
Input delay
ƒ Time between the recognition of the signal change and the effective evaluation of
an input signal. As a result, multiple and short signal changes due to contact bounce
of the components are not taken into account.
Input filter time
ƒ
Time in which the interference pulses and test pulses are not detected by e.g. active
sensors that are switched on.