MDS-E/EH Series Instruction Manual
3 Safety Function
102
IB-1501229-F
3.1 Safety Function
This drive unit offers the safety function which satisfies the following harmonized standard can be offered with this drive
unit.
Each function can be available in the system consisting of the safety function compliant NC control unit and drive unit,
and various communication cables, sensors, and contactors. This section describes the safety function controlled
directly by the drive unit.
3.1.1 Harmonized Standard
3.1.2 Outline of Safety Function
Machinery Directive
(2006/42/EC)
IEC60204-1: 2009
IEC62061: 2015 (SIL2)
IEC ISO13849-1: 2015 (Cat.3, PL d)
IEC61800-5-1: 2007
IEC61800-5-2: 2007
IEC61326-3-1: 2008
Function Details
STO
(Safe Torque Off)
The torque is shut off by shutting off the energy supply to the motor. The motor power is
electronically shut off inside the drive unit.
SBC
(Safe Brake Control)
Using this function enables to enhance the reliability of the brake start. In this function, the brake
start signal is output redundantly and it enhances the reliability of signal path to the brake start and
also diagnosis the brake signal output end. It detects the brake start circuit defect and wiring defect
etc.
WARNING
Precautions for the safety function described in this manual are as follows.
Read carefully all the following fundamental precautions for safety to prevent human injury or property damage.
1. Only a qualified person is authorized to perform the installation, start, repair, or adjustment of the device in which these
equipment are installed.
2. The qualified person must be familiar with the laws of the country where the device into which this product is built is
installed, especially the standards described in this book, and the requirements which are listed in EN ISO 13849-1,IEC/
EN 61508,IEC 61,800-5-2 and IEC 60,204-1.
3. To perform the start, programming, setting and maintenance of the device in accordance with the safety standards, the
staff who undertakes these work should obtain permission from the company it belongs to.
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