EUCHNER CES-I-AR-U-C04 (Unicode) User Manual
Page 25
Operating Instructions Safety Switch CES-I-AR-U-C04
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Typical system times
Ready delay: After switching on, the unit carries out a self-test for 8 s. The system
is ready for operation only after this time.
Switch-on time of safety outputs: The max. reaction time from the moment when
the actuator is at the operating distance (safety door closed) to the moment when
the safety outputs switch on T
on
is 300 ms (400 ms for switch chains).
Simultaneity monitoring, safety inputs FI1A/FI1B: If the safety inputs have
different switching states for longer than 150 ms, the safety outputs FO1A/FO1B
will be switched off.
Risk time according to EN 60947-5-3: If an actuator moves outside the operat-
ing distance, the safety outputs FO1A and FO1B are deactivated after a maximum
of 260 ms. This value applies to a single switch. For each additional switch in a
chain the risk time increases by 5 ms.
Difference time: The safety outputs FO1A and FO1B switch with a slight delay
in relation to each other. They have the same signal state at the latest after a dif-
ference time of 10 ms.
Test pulses at the safety outputs: The device generates its own clock signal on
the output lines FO1A/FO1B. A downstream control system must tolerate these
test pulses, which may last up to 1 ms.
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, please contact our support organization.
The test pulses are also output when the safety outputs are switched off.