Actuator (one-channel, sourcing output)

The input of the actuator does not have to be zero potential.

The sourcing output connection variant is suitable for applications up to SIL 2 pursuant to EN 61508 and performance level d pursuant to EN ISO 13849-1.

The MOVISAFE® CS..A safety option detects the following faults in the external cabling when the output is disabled or enabled:

  • Short circuit between sourcing output and a supply voltage that lies within the range of 15 to 30 V and has the same ground potential as the assembly.

The MOVISAFE® CS..A safety option can also detect the following faults when the output is enabled:

  • Short circuit between different sourcing outputs
  • Short circuit between the sourcing output and the reference potential 0 V
  • Overload on each output
  • Wire break F-DO., if activated

WARNING

In the event of a short-circuit fault between the sourcing output and a 24 V supply voltage, the MOVISAFE® CS..A safety option can no longer disable the actuator and cannot change to the safe state.
The line diagnostics function can detect the fault. However, the MOVISAFE® CS..A safety option cannot enter a safe state as there is no redundant switch-off channel in this connection variant.
Severe or fatal injuries.
  • Route the cables in such a way that no short circuit can occur between the sourcing output and a +24 V supply voltage.
  • Make sure that an additional redundant switch-off channel exists for the actuator (e.g. by using a second sourcing output).

INFORMATION

If possible, SEW-EURODRIVE recommends a sourcing/sinking output connection or the use of 2 parallel, sourcing outputs.
For safe outputs, refer also to details in the chapter "Technical data".

[1]

Actuator 1

[2]

Actuator 2

INFORMATION

In the event of short circuits, a high short-circuit current can occur for a short time. Depending on the DC 24 V supply voltage used, this can cause a voltage dip that affects the operation of MOVIDRIVE® modular or MOVIDRIVE® system and/or individual assemblies.
If the voltage supply is not stable enough, it can result in a reset and a restart of the MOVISAFE® CS..A safety option.
  • Make sure the DC 24 V voltage supply does not break down in the event of short circuits at the output.

Connect the actuator between F‑DO.._P and the GND reference potential.