ABB 3HAC4296-1 DSQC505 PLC control system
Technical data of product parameters
A frequently required application task is the safe torque off and the protection of personnel against unintentioned restarting of drives. The S700 servo amplifier offers, even in the
basic version, a two channel STO function (Safe Torque Off). The function blocks the trigger pulses of the power transistors (pulse inhibitor).
Advantages of the safety function STO:
— the 3HAC4296-1 DSQC505 bus link remains charged up, since the mains supply line remains active
— only low voltages are switched, so there is no contact wear
— very little wiring is required
— single or dual channel control possible
— SIL2 or SIL3 solutions possible
The STO safety function corresponds to stop category 0 (uncontrolled stopping) acc. to
EN 60204-1. The safety function STO can be operated from external safety switch gears
(relays), from a safe external control (semiconductor output or driven contact) or from the
built-in safety card 3HAC4296-1 DSQC505
The STO safety concept is certified by the TÜV. The safety circuit concept for realizing
the safety function “Safe Torque Off” in the servo amplifiers S700 is suited for 3HAC4296-1 DSQC505
according to IEC 62061 and PLe according to ISO 13849-1.
SIL2 / PLd solutions can be implemented with single-channel or dual-channel control with
simple safety switching devices.
A SIL3 / PLe solution requires a safety control that periodically tests the safe switching of
the pulse inhibitor by analyzing the feedback signal.
5.9.1 Safety characteristic data
The subsystems (servo amplifiers) are totally described for safety technics with the
Product picture display
Company advantages
Warranty: Seven day acceptance period, one year warranty period
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Main products: Focus on DCS, PLC, robot control system and large servo system. Main products: various modules/cards, controllers, touch screens, servo drives.
Main brands:
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reminder
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