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07-02-12-02-EN-V1215.doc / Type: 638
9.6 Signal Inputs Technical Data - Terminal Connection X11
General The technical data provided in the section
General Technical Data is valid, with the
exception of the data listed below.
Nominal Voltage from the Inputs 24 V DC
Required Insulation from the
Control Voltage 24V
protective extra-low voltage (PELV)
STO – Control Voltage Protection 1A
Number of Inputs
Signal Inputs via Opto-Coupler
2
L = 0...7 V DC or open
H = 15...30 V DC
I
at 24VDC: 8 mA
STO1# L = STO activate
H = STO deactivate
STO2# L = STO activate
H = STO deactivate
Break Time at Unequal Input Conditions
Function see Status Diagram
approx. 20 seconds
PFH for Cat. 3 and PL d 1,01 x 10
PFH = Average probability of dangerous failure per hour
Note: OSSD Signals (Output Switched Signal Device) up to 500µs at STO-Inputs are allowed.
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