Safety engineering
Technical data
10
l
265
EDS84ASC552 EN 8.1
10.5 Technical data
Supply
The inputs and outputs are isolated and designed for a low−voltage supply through a safely
separated power supply unit (SELV/PELV) of 24 V DC. P/N switching input signals and test
pulses 1 ms are permissible.
Active sensors are directly wired to the X80 terminal strip.
Passive sensors are wired to the X80 terminal strip via a switching device. The switching
device must comply with the required control category of the application.
There is no monitoring for short circuits.
Detailed features of the inputs and outputs of the safety unit
Terminal Specification [Unit] min. typ. max.
SIA, SIB
Low signal
V −3 0 5
High signal
V 15 24 30
Input capacitance at switch−off
nF 4
Input delay (tolerated test pulse)
ms 1
Switch−off time (depending on the controller)
ms 2.5 4
Running time
ms 3
SIA
Input current mA 100 170
Input capacitance at switch−on, reduced
F 20
SIB
Input current mA 28 35
Input capacitance at switch−on, reduced
F 5
GI Ground for SIA/SIB
24O, GO Supply voltage through safely separated power supply
unit (SELV/PELV)
V 18 24 30
DO
Low signal
V 0 0.8
High signal
V 17 24 29
24O, GO, DO Output current A 0.7
Truth table
Safe input / channel Signalling
output
Controller
SIA SIB DO1/DO Description of device status Enable
001
"Safe torque off" activated
0
0 1 0 0
1 0 0 0
1 1 0 Drive active 1
Restriction of use
The operation of an integrated safety system is not permissible in earthed phase mains.
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