Typical circuit diagrams
9.2 DM-F Local, sensor circuits
SIMOCODE pro - Fail-Safe Digital Modules
Manual, 11/2017, NEB631679702000/RS-AA/002
69
DM-F LOCAL in conjunction with failsafe electronic outputs (current sourcing)
with automatic start
3UF7320-1AB00-0 / 3UF7320-1AU00-0
Fail-safe digital output module, current sourcing (e.g. fail-safe digital output module
SM 326 DO10x DC 24 V/2 A, Article No. 6ES7 326-2BF00-0AB0, 6ES7 326-2BF40-0AB0)
● DM-F Local without cross-circuit detection
● DM-F Local 2-channel
● DM-F Local sensor input with automatic start
Figure 9-8 Circuit diagram, 3UF7320-1AB00-0 / 3UF7320-1AU00-0, fail-safe digital output module,
current sourcing, without cross-circuit detection, 2-channel, with automatic start
Safety Integrity Level in accordance with IEC 61508/EN 62061: to SIL 1
Performance Level in accordance with EN ISO 13849-1: to PL c
DIP switch settings, 3UF7320
-1AB00-0 / 3UF7320-1AU00-0, fail-safe digital output module, current sourcing, without cross-
circuit detection, 2-channel, with automatic start
Cross-circuit between P 24 V and DO
If there is an existing cross-circuit between P 24 V and DO, the controlled actuator will no
longer be switched off.
To avoid cross-circuits between P 24V and DO, you must lay the cables for the connection
of the actuators between the signal group and the actuator in a cross-circuit proof manner
(e.g. as separately sheathed cables or in independent cable ducts).
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