Vacon NX User Manual

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Contents

Vacon NX User Manual Manual pdf 14 page image

3vacon • 13 STO AND SS1 SAFETY FUNCTIONSTel. +358 (0) 201 2121 • Fax +358 (0)201 212 2053. STO AND SS1 SAFETY FUNCTIONSThe safety functions of the OPT-AF board, such as the technical principle and data, wiring examplesand commissioning, will be described in this chapter.NOTE! Designing of safety-related systems requires speial knowledge andskills. Only qualified persons are permitted to install and set up the OPT-AFboard.The use of STO, SS1 or other safety functions does not itself ensure safety.An overall risk evaluation is required in order to make sure that the com-missioned sy-stem is safe. Safety devices like the OPT-AF board must becorrectly incorporated into the entire system. The entire system must bedesigned in compliance with all relevant standards within the field of indus-try.Standards such as EN 12100 Part 1, Part 2, & ISO 14121-1 provide methodsfor designing safe machinery and for carrying out a risk assessment.CAUTION! The information in this manual provides guidance on the use ofthe safety functions that OPT-AF option board provides together with NXPcontrol board. This information is in compliance with accepted practice andregulations at the time of writing. However, the end product/systemdesigner is responsible for ensuring that the system is safe and in compli-ance with relevant regulations.CAUTION! The OPT-AF board and its safety functions do not electrically iso-late the drive output from the mains supply. If electrical work is to be car-ried out on the drive, the motor or the motor cabling, the drive has to becompletely isolated from the mains supply e.g. using an external supplydisconnecting switch. See for e.g. EN 60204-1 section 5.3.CAUTION! If STO or SS1 safety function is required in DriveSynch installa-tion, please contact Vacon for more information.CAUTION! In LineSynch application the use of OPT-AF board will not fulfillSTO or SS1 -safety functions while the drive is in by-pass mode.