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Operating Instructions
Transponder-Coded Safety Switch CTP/CTA-L1/2-BR
16.3.
Typical system times
Refer to the technical data for the exact values.
Ready delay: After switch-on, the device carries out a self-test. The system is ready for operation only after this time.
Turn-on time of safety outputs: The max. reaction time t
moment when the safety outputs switch on.
Simultaneity monitoring of enable inputs FI1A/FI1B: If the enable inputs have different switching states for longer than
a specific time, the safety outputs FO1A and FO1B will be switched off. The device enters the fault state.
Risk time according to EN 60947-5-3: The risk time is the maximum time until at least one of the safety outputs FO1A
or FO1B switches off safely when the actuator is removed from the actuating range. This also applies if an internal or ex-
ternal fault occurs at this moment.
If several devices are operated in a series connection, the risk time of the overall device chain will increase with each device
added. Use the following calculation formula:
t
= t
+ (n x t
)
r
r, e
l
t
= Total risk time
r
t
= Risk time for single device (see technical data)
r, e
t
= Risk time delay per device
l
n = Number of additional devices (total number -1)
Discrepancy time: The safety outputs FO1A and FO1B switch with a slight time offset. They have the same signal state
no later than after the discrepancy time.
Test pulses at the safety outputs: The device generates its own test pulses on the safety outputs FO1A and FO1B. A
downstream control system must tolerate these test pulses.
This can usually be set up in the control systems by parameter assignment. If parameter assignment is not possible for
your control system or if shorter test pulses are required, contact our support organization.
The test pulses are also output when the safety outputs are switched off.
42
is the time from the moment when the guard is locked to the
on
(translation of the original operating instructions) MAN20001654-01-03/23
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