S5-95F Rules for Failsafe Operation of an S5-95F
Table 18-1. Circuit Diagram for I/Os (continued)
DQ
DQ
0 V
V
Load
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Subunit A
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Subunit B
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Coupling relay
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Coupling relay
Actuator
0 V
Circuit Diagram ModulesComments
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I/O type M
I/O type P
Subunit A and B
AQ
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Analog
actuator
I/O type W
Subunit A and B
AI
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Sensor
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a
UI
All standard AI modules from
the S5-100U series
Analog input module, not
safety-related
1×AQ 6ES5 470-8MA12
or
1×AQ 6ES5 470-8MB12
or
1×AQ 6ES5 470-8MC12
or
1×AQ 6ES5 470-8MD12
Analog output module, not
safety-related
Failsafe binary output module
with indirect driving of a
failsafe actuator via
contactor-relay contacts
(both modules with source
output)
In special cases, coupling
relays must be designed for
diversity
See Table 18-6
2×F DQs 6ES5 450-8FA11
EWA 4NEB 812 6210-02
18-9
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