7
Electrical installation
Safe digital inputs (F-DI.)
Manual – MOVISAFE
®
CS..A Safety Card (Version 2)
57
7.5.7
Active sensors (dual-channel)
When connecting a dual-channel sensor with additional voltage supply, the voltage is
supplied via an external DC 24 V power supply. The voltage supplies for the sensor
outputs are connected to the sensor supply F-SS0 and F-SS1. The safe outputs of the
sensor are connected with 2 channels to the respective safe digital inputs (F-DI.) at
terminal X60. 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 (equivalent/non-equivalent).
•
Activate or deactivate the pulsed sensor supply, depending on the safety require-
ments.
•
Parameterize the permitted discrepancy time between the two input signals of the
sensor you are using.
The following figure shows the MOVISAFE
®
CS..A safety card with an active sensor
(dual-channel).
DC 24 V
0 V
[6]
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
Pulse1 [2]
Pulse2 [3]
Out1 [4]
Out2 [5]
+24V
0V
[1]
9007207666490251
[1] Active dual-channel sensor
[2] Supply of output 1 (Out1)
[3] Supply of output 2 (Out2)
[4] Safe digital output 1
[5] Safe digital output 2
[6] External DC 24 V voltage supply
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.
28482271/EN – 03/2019
