8
Electrical installation
Safe digital inputs (F-DI.)
Manual – MOVISAFE
®
CS..A Safety Card
50
8.5.6
Sensors with contact (dual-channel)
A dual-channel contact-equipped sensor is connected via the sensor supply F-SS0
and F-SS1. Note the detailed assignment of the safe digital inputs (F-DI.) to the
sensor supply F-SS0 and F-SS1 in chapter "Terminal assignment".
Settings in the parameterization tool "Assist CS..":
•
Choose the dual-channel connection type.
•
Activate or deactivate crossfault monitoring and pulsed sensor supply, depending
on the safety requirements.
The following figure shows the MOVISAFE
®
CS..A safety card with contact-equipped
dual-channel sensors in the non-equivalent and equivalent connection variants.
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
[1]
[2]
9007207666486027
[1] Dual-channel contact-equipped sensor in "non-equivalent" connection variant
[2] Dual-channel contact-equipped sensor in "equivalent" connection variant
Operation with activated crossfault monitoring
The following errors 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 F-DI 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.
Operation without crossfault monitoring
When using a dual-channel, non-equivalent-switching sensor, the MOVISAFE
®
CS..A
safety card can detect a crossfault between the two digital inputs of an input pair.
24842532/EN – 04/2018
