Table of contents 5 Table of contents 1 Safety instructions Contents of this chapter ................Use of warnings and notes ..............Instructions for functional safety circuits ............Electrical safety precautions ..............2 Introduction to the manual Contents of this chapter ................Applicability ..................
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6 Table of contents 7 Fault tracing Contents of this chapter ................Fault tracing ..................Reporting problems and failures related to safety functions ........ 8 Maintenance Contents of this chapter ................Safety circuit maintenance ..............Proof test interval ................. Competence ..................Residual risk ..................
Safety instructions 7 Safety instructions Contents of this chapter This chapter contains the safety instructions which you must obey when you install, operate and do maintenance on the safety functions of a drive. Use of warnings and notes Warnings tell you about conditions which can cause injury or death, or damage to the equipment.
8 Safety instructions Only a qualified electrician who has appropriate knowledge on functional, machine, and process safety is allowed to install, start up and maintain the safety circuit. All user-made changes are on the user's responsibility. WARNING! This safety function does not disconnect the voltage of the main and auxiliary circuits from the drive.
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Safety instructions 9 3. Protect any other energized parts in the work location against contact. 4. Take special precautions when close to bare conductors. 5. Measure that the installation is de-energized. • Use a multimeter with an impedance greater than 1 Mohm. •...
Exclusion of liability ABB is not responsible for the implementation, verification and validation of the overall safety system. It is the responsibility of the system integrator (or other party) who is responsible for the overall system and system safety.
Safety Functional safety; Technical guide No. 10 3AUA0000048753 Safety and functional safety; A general guide 1SFC001008B0201 ABB Safety information and solutions www.abb.com/safety Options ACX-AP-x assistant control panels user’s manual 3AUA0000085685 Manuals and quick guides for I/O extension modules, fieldbus adapters, etc.
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Document Library. For manuals not available in the Document library, contact your local ABB representative. For additional ABB safety information and solutions visit http://www.abb.com/safety. ACS880-07 (45 to 710 kW) manuals ACS880-07 (560 to 2800 kW) ACS880-17 (45 to 400 kW) manuals...
14 Introduction to the manual Terms and abbreviations Term Description Cat. Classification of the safety-related parts of a control system in respect of their resistance to faults and their subsequent behavior in the fault condition, and which is achieved by the structural arrangement of the parts, fault detection and/or by their reliability. The categories are: B, 1, 2, 3 and 4.
Option description 15 Option description Contents of this chapter This chapter describes the option +Q957, prevention of unexpected start-up, and its settings. Overview The Prevention of unexpected start-up (POUS) function disables the control voltage of the power semiconductors of the drive (inverter) output stage. This prevents the drive from generating the torque required to rotate the motor.
16 Option description Note: Drives with the Emergency stop, stop category 1 function (option +Q952 or +Q964): If the user activates the POUS function during the emergency stop deceleration ramp, it overrides the emergency stop function. This activates the STO function of the drive immediately and the motor coasts to a stop.
Option description 17 Step Operation Initial status: The drive is in operation and the motor is not running. The user activates the Prevention of unexpected start-up function by switching off the POUS switch [S]. The POUS safety relay [A65] switches off the XSTO inputs IN1 and IN2 of the inverter control unit [A41].
18 Option description • parameter 121.05 Emergency stop source is set to value Inactive. For more information, see the firmware manuals. Hardware settings Appropriate hardware settings have been preset at the factory for the safety function. The settings in the POUS safety relay [A65] are: •...
Electrical installation 19 Electrical installation Contents of this chapter This chapter describes the wiring of the safety option done at the factory and contains guidelines for making user connections (if any). Wiring The operating switch and the indication lamp for the POUS function are not factory-installed. The user must install and wire them to the drive on site.
Use of the safety function 21 Use of the safety function Contents of this chapter This chapter describes the use of the safety function with factory default settings. Activating the safety function 1. Switch off the POUS switch. When the POUS is activated, the following indications are shown: •...
Start-up and acceptance test 23 Start-up and acceptance test Contents of this chapter This chapter describes the start-up, acceptance test procedure, and validation of the safety function. Validation of the safety functions You must do an acceptance test (validation) to validate the correct operation of safety functions.
24 Start-up and acceptance test • you must sign and store the acceptance test report for further reference. ■ Acceptance test reports You must store the signed acceptance test reports in the logbook of the machine. The report must include, as required by the referred standards: •...
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Start-up and acceptance test 25 Action We recommend that you monitor these signals with the Drive composer PC tool: • 01.01 Motor speed used (rpm) • 01.02 Motor speed estimated (rpm) • 01.07 Motor current (A) • 01.10 Motor torque (%) •...
If STO hardware failure (5090) is generated, check STO wiring against the circuit diagrams. See drive hardware manual for more information. For more fault tracing possibilities, see the hardware and firmware manuals of the drive. Reporting problems and failures related to safety functions Contact ABB.
If you change any wiring or component after the start-up or restore parameters to their factory default values: • Use only ABB-approved spare parts. • Register the change to the change log for the safety circuit. •...
30 Maintenance The person responsible for the design of the complete safety system should also note the Recommendation of Use CNB/M/11.050 published by the European co-ordination of Notified Bodies for Machinery concerning dual-channel safety-related systems with electromechanical outputs: • When the safety integrity requirement for the safety function is SIL 3 or PL e (cat. 3 or 4), the proof test for the function must be performed at least every month.
Safety data values This safety data is valid for the default design of the safety circuit described in this manual. In case the final design differs from the default, ABB calculates new safety data and delivers it separately to the customer.
32 Technical data 3) 4) Drive SIL / Cat. Mission module SILCL =2a) =5a) time [1/h] frame size 4×R8i 1.9E-10 8.3E-05 8.4E-05 >90 20/5/2 5×R8i 2.1E-10 8.3E-05 8.4E-05 >90 20/5/2 6-8×R8i 2.4E-10 8.3E-05 8.4E-05 >90 20/5/2 3AXD10000097591 Rev G 1) PFH values are according to EN ISO 13849. 2) DC for low demand mode is 90% (determined by the DC of the worst component in the subsystem).
Technical data 33 Ambient conditions For the environmental limits for the safety functions and the drive, refer to the hardware manual of your drive. ■ ACS880-07 drives, frames R6 to R11 The maximum ambient temperature for the drive with safety relays is 45 °C (113 °F). In the temperature range +40…45 °C (+104…113 °F), the rated output current must be derated by 2% for every added 1 °C (1.8 °F).
34 Technical data Standard Name EN 62061:2005 Safety of machinery – Functional safety of safety-related electrical, electronic and pro- grammable electronic control systems + AC:2010 + A1:2013 + A2:2015 IEC 62061:2015 Ed. 2006/42/EC European Machinery Directive Other Machine-specific C-type standards Compliance with the European Machinery Directive The drive is an electronic product which is covered by the European Low Voltage Directive.
Product and service inquiries Address any inquiries about the product to your local ABB representative, quoting the type designation and serial number of the unit in question. A listing of ABB sales, support and service contacts can be found by navigating to www.abb.com/searchchannels.