Bosch Rexroth IndraControl S20 Manual page 39

DOK-CONTRL-S20*SSDO*8*-AP02-EN-P
IndraControl S20 Module With Safe Digital Outputs S20-SSDO-8/3
Error type
Error in actuator
Even though it was witched off, the
actuator does not go into the safe
state (e.g. not opening a contact)
Actuator cannot be switched on
(e.g. interruption)
More errors (depending on the ac‐
tuator)
Error in wiring
Interruption
Interrupting the wire between out‐
put and actuator or between actua‐
tor and ground
Cross-fault
Output against output
Short circuit
Output against ground or output
against FE
Exemplary parameterization
Identifi‐ Diagnos‐ Loss of
cation tics
SF 1
No None Yes
No None No
No None No
Yes All LEDs Yes
OUT: Red
on
Yes Short cir‐ No
cuit or
overload,
OUTx 2
SF = Safety function
1
OUTx = Diagnostic message (LED) per output X
2
Tab. 7-3: Single-channel: Test pulses switched on
Parameterization
Assignment
Output
Bosch Rexroth AG
Connection examples of the safe outputs
Notes
Install an error detection by external monitoring. Ob‐
serve all errors that can occur in the actuator.
Test the switch-off capability of the actuator in rea‐
sonable intervals.
Use a dual-channel actuator if required.
Install an error detection by external monitoring. Ob‐
serve all errors that can occur in the actuator.
Ensure that this error does not cause a delayed sys‐
tem startup.
Consider all errors that can occur in the actuator.
Install an error detection by external monitoring. Ob‐
serve all errors that can occur in the actuator.
Ensure that this error does not cause a delayed sys‐
tem startup.
Cross-fault between the outputs is only detected
when the outputs are in a switched-off state if the
test pulses are switched on. If an error is detected,
the module disables all its outputs.
The error is detected in enabled state. The output is
disabled (safe state). It can only be switched on
again at a rising edge from "0" to "1" after trouble‐
shooting and acknowledgement.
WARNING!
Unexpected machine startup due to an "Operator Ac‐
knowledgement"
Note that an "Operator Acknowledgement" can
cause the outputs to be switched on again.
Parameterized as
Assigned
Single-channel
37/85
Notes
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