Using A Backup Capaciter In Case Of Interruptions In The Power Supply; Figure 28: Infeed For Profisafe I/O Modules 75X-66X With - WAGO -I/O-SYSTEM 750 Series Manual

60 Connect Devices
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7.2.1 Using a Backup Capaciter in Case of Interruptions in the
Power Supply
Brief voltage dips in the field power supply below permissible values (e.g., when
switching capacitive loads) also leads to passivation of the PROFIsafe I/O
module. To prevent unintended passivations, low-impedance supply lines and
sufficient power supply units must be used. Alternatively in addition, a capacitor
can be used to support the field supply voltage for the digital inputs. To this
effect, you can use a backup capacitor module for the WAGO-I/O-SYSTEM 750
with a capacity of 10000 μF (item No. 288-824). The back-up capacitor module
(item No. 288 824) has a maximum current carrying capacity of 1 A and cannot
be used to support the 24V field supply voltage for digital power outputs with
higher power requirements.
Figure 28: Infeed for PROFIsafe I/O Modules 75x-66x with Backup Capacitor Module 288-824
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WAGO-I/O-SYSTEM 750
753-661/000-003 4FDI 24V PROFIsafe V2 iPar
Version 1.4.0, valid from HW/SW Version 01/02
Manual