7
Electrical installation
Safe digital inputs (F-DI.)
Manual – MOVISAFE
®
CS..A Safety Card (Version 2)
54
7.5.5
Contact-equipped sensors (single-channel)
A single-channel sensor is connected via the sensor supply F-SS0 or F-SS1. The
sensor cycle available there makes it possible for crossfaults in the wiring to be detec-
ted. Note the detailed assignment of F-DI. to the sensor supply F-SS0 or F-SS1 in the
chapter "Terminal assignment".
Settings in the parameterization tool "Assist CS..":
•
Choose the single-channel connection type.
•
Depending on the requirement with respect to safety technology, activate or deac-
tivate the "crossfault monitoring" and pulsed voltage supply of the sensor supply.
The following figure shows the MOVISAFE
®
CS..A safety card with single-channel
contact-equipped sensors.
9
10
3, 4, 7, 8
F-SS0
F-DI00
F-DI01
F-DI02
F-DI03
F-SS1
GND
1
5
2
6
X60
X60
MOVISAFE
®
CS ..A
9007207666482571
Operation with activated crossfault monitoring
The following faults are detected:
•
Crossfault between every digital input line F-DI. and a 24 V supply voltage.
•
Crossfault between a digital input line F-DIx and another digital input line F-DIy,
which is assigned to another sensor supply, if at least the associated switch con-
tact of the other digital input F-DIy is closed.
•
Crossfault between a digital input line FDI and a sensor supply line not assigned to
the input F-DI.
•
Crossfault between a sensor supply line F-SS and a 24 V supply voltage if the di-
gital input F-DI is assigned to the sensor supply and the switch contact belonging
to F-DI is closed.
•
Crossfault between the sensor supply lines F-SS themselves if the switch contact
belonging to the digital input F-DI is closed.
WARNING
The MOVISAFE
®
CS..A safety card
cannot
detect a short circuit between an F-SS.
sensor supply and an associated safe input F-DI.
Severe or fatal injuries.
•
Make sure that no short circuit between the sensor supply F-SS. and an associ-
ated safe input F-DI. is possible.
28482271/EN – 03/2019
