Example Wiring Diagrams; Sto Connections Without Safety Relays; Connecting The Sto Activation Switch - ABB ACS800 Series Application Manual

Example wiring diagrams

Connect the cables as shown in the diagram below. For more information on the
components, see chapter

STO connections without safety relays


The following diagrams show the STO connections without safety relays in:
•
connecting an emergency stop push button to the drive/inverter module without safety
relay (page 22).
•
single drives R2-R6 and R7-R8 (page 18)
•
inverter modules R2i-R4i, R5i, R7i, R8i, R7iLC and R8iLC (pages 19-21)

Connecting the STO activation switch

We recommend using a safety relay between the activation switch and the STO input,
because the STO is not capable of detecting any redundancy fault of the switch (such as a
welded contact).
Technical data.
Installation 17
INVERTER MODULE R8i
3AUA0000096631