Dual-Channel Assignment Of The Safe Outputs - Bosch Rexroth IndraControl S20 Manual

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Connection examples of the safe outputs
7.5

Dual-channel assignment of the safe outputs

Key data
Device diagnostics and module
behavior in case of error
IndraControl S20 Module With Safe Digital Outputs S20-SSDO-8/3
Parameterization
Switch-off delay for stop
category 1
Test pulses (output disa‐
bled)
For the dual-channel assignment of the safe outputs, two adjacent outputs of
the same plug are used. This assignment cannot be parameterized, refer to
"Dual-channel" on page 29.
OUT1_Ch1
GND
OUT1_Ch2
GND
Fig. 7-3: Dual-channel assignment of the outputs
K1 (R) and K2 (R) represent the forced N/C contacts to the state monitoring
of the relay (read-back contacts).
● Connect these contacts via safe digital outputs.
● Analyze the readback and thus the state of the switching elements in
the safe application program.
WARNING
Connect the ground of the actuator to the respective ground terminal point of
the corresponding output on the IndraControl S20 plug. Using an external
ground is not permitted.
The error detection time does not have to be considered for a dual-channel
assignment.
Actuator
Attainable SIL/SILCL/Cat./PL
Switch on the test pulses to improve the device diagnostics and in
case of long off-intervals.
DOK-CONTRL-S20*SSDO*8*-AP02-EN-P
Parameterized as
Enabled
Enabled
K1
K2
Loss of the safety function due to parasitic
voltage
Dual-channel
SIL 3/SILCL 3/cat. 4/PL e
Notes
Or disabled
Or disabled
K1 (R)
K2 (R)
M