8
Electrical installation
Safe digital outputs (F-DO.)
Manual – MOVISAFE
®
CS..A Safety Card
59
8.6.8
Actuator (dual-channel, sourcing output)
In dual-channel sourcing operation, the actuators are wired as follows.
F-DO00_P
F-DO00_M
F-DO01_P
F-DO01_M
GND
GND
12
11
14
13
07
08
X60
MOVISAFE
®
CS..A
[1]
[1]
9007207666505227
[1] Actuator
Connect the actuator on two channels between F-DO00_P and F-DO01_P and GND.
The actuator input need not be isolated. The dual-channel sourcing output connection
variant is suitable for applications up to SIL 3 pursuant to IEC 61508 and Performance
Level e pursuant to EN ISO 13849-1.
This connection type cannot be adjusted directly via a parameter, but is instead
achieved by the following parameterization and control of the two outputs involved:
•
Both outputs are parameterized as single-channel sourcing outputs.
•
Both outputs are switched simultaneously. This can be achieved via a drive safety
function (STO, SBC) assigned to both outputs or via the secure process output
data F-PA (F-DO00 and F-DO01).
The MOVISAFE
®
CS..A safety card detects the following faults in the external cabling
when the output is switched on or off:
•
Short circuit between sourcing output and a supply voltage that lies within the
range 15 - 30 V and has the same ground potential as the other assembly.
The MOVISAFE
®
CS..A safety card detects the following faults when the output is
switched on:
•
Short circuit between different sourcing outputs
•
Short circuit between the P output and the reference potential
•
Overload at every output
•
Wire break (if activated)
WARNING
In case of a short circuit between the sourcing output and a 24 V supply voltage, the
MOVISAFE
®
CS..A safety card can no longer switch off the actuator, meaning that it
can no longer switch to a safe state.
Severe or fatal injuries.
•
Route the cables in such a way that no short circuit between the sourcing output
and a +24 V supply voltage is possible.
24842532/EN – 04/2018
