ABB ACS880-17 - Compliance with the European Machinery Directive

200 The Safe torque off function
The function also corresponds to Prevention of unexpected start-up as specified by
EN 1037:1995 + A1:2008 and Uncontrolled stop (stop category 0) as specified in
EN 60204-1.
 Compliance with the European Machinery Directive
See section Compliance with the European Machinery Directive on page 176.
Wiring
The following diagrams present examples of Safe torque off wiring for
• a single drive (page 202)
• multiple drives (page 203)
• multiple drives when an external 24 V DC power supply is used (page 204).
For information on the specifications of the STO input, see chapter Control unit of frame
R11 (page 113).
 Activation switch
In the wiring diagrams below, the activation switch has the designation [K]. This represents
a component such as a manually operated switch, an emergency stop push button switch,
or the contacts of a safety relay or safety PLC.
• If a manually operated activation switch is used, the switch must be of a type that can
be locked out to the open position.
• The contacts of the switch or relay must open/close within 200 ms of each other.
• An FSO-xx safety functions module or an FPTC-0x thermistor protection module can
also be used. For more information, see the FSO-xx module documentation.
IEC 61326-3-1:2008 Electrical equipment for measurement, control and laboratory use – EMC
requirements – Part 3-1: Immunity requirements for safety-related
systems and for equipment intended to perform safety-related functions
(functional safety) – General industrial applications
IEC 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-
related systems – Part 1: General requirements
IEC 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-
related systems – Part 2: Requirements for
electrical/electronic/programmable electronic safety-related systems
IEC 61511-1:2016 Functional safety – Safety instrumented systems for the process industry
sector
IEC 61800-5-2:2016
EN 61800-5-2:2007
Adjustable speed electrical power drive systems –
Part 5-2: Safety requirements – Functional
IEC 62061:2015
EN 62061:2005
+AC:2010+A1:2013+A2:2015
Safety of machinery – Functional safety of safety-related electrical,
electronic and programmable electronic control systems
EN ISO 13849-1:2015 Safety of machinery – Safety-related parts of control systems – Part 1:
General principles for design
EN ISO 13849-2:2012 Safety of machinery – Safety-related parts of control systems – Part 2:
Validation
Standard Name