ABB ACS800-01 - 8 Installation of the ASTO Board (Safe Torque Off, +Q967); What this Chapter Contains; Safe Torque off (+Q967); Installation of the ASTO Board

Installation of the ASTO board (Safe torque off, +Q967) 81
8
Installation of the ASTO board
(Safe torque off, +Q967)
What this chapter contains
This chapter describes the electrical installation of the optional Safe torque off
function (+Q967) of the drive and the specifications of the board.
Safe torque off (+Q967)
The optional Safe torque off function includes an external ASTO board, which is
connected to the drive and an external power supply.
For more information on the Safe torque off function, see
Safe torque off (option
+Q967)
(page 48) and ACS800-01/04/11/31/104/104LC Safe torque off function
(+Q967), Application guide
(3AUA0000063373 [English]).
Installation of the ASTO board
WARNING! Dangerous voltages can be present at the ASTO board even
when the 24 V DC supply is switched off. Obey the Safety instructions
(page 105) in this manual and in this chapter when you do work on the
ASTO board.
Make sure that the drive is disconnected from the mains (input power) and the
24 V DC source for the ASTO board is switched off during installation and
maintenance. If the drive is already connected to the mains, wait for 5 minutes after
disconnecting mains power.