Chapter 8 Using Sto Function; Introduction; Outline; Terms Related To Safety - Mitsubishi Electric MELSERVO-J5 User Manual
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Also See for MELSERVO-J5:
- User manual (580 pages) ,
- Sample screen manual (128 pages) ,
- Introduction manual (112 pages)
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8
USING STO FUNCTION
Precautions
• In the torque mode, the forced stop deceleration function cannot be used.
8.1
Introduction
This section provides the cautions of the STO function.
For information on implementing functional safety, refer to the following page.
Page 332 USING FUNCTIONAL SAFETY [G] [WG]
Precautions
• Do not improperly install safety-related components or systems. Installation should be performed by qualified personnel.
Outline
This servo amplifier complies with the following safety standards.
Item
Safety sub-function
Satisfied standards
Terms related to safety
The STO function shuts off energy to servo motors, thus removing torque. MR-J5 shuts off the energy by turning off the power
supply electronically in the servo amplifier.
The purpose of this function is as follows.
• Uncontrolled stop according to stop category 0 of IEC/EN 60204-1
• Preventing unexpected restart
Precautions
The following basic safety instructions must be read carefully and fully to prevent injury to persons or damage to property.
Only qualified personnel are authorized to install, startup, repair, or adjust the machines in which these components are
installed.
They must be familiar with all applicable local regulations and laws in which machines with these components are installed,
particularly the standards mentioned in this user's manual.
The staff responsible for this work must be given express permission from the company to perform startup, programming,
configuration, and maintenance of the machine in accordance with the safety standards.
This servo amplifier satisfies the Safe Torque Off (STO) function described in IEC/EN 61800-5-2 by preventing the energy
supply from the servo amplifier to the servo motor. If an external force acts upon the drive axis, additional safety measures,
such as brakes or counterbalances must be used.
MR-J5-_G/MR-J5-_A/MR-J5-_A-RJ
STO (IEC/EN 61800-5-2)
EN ISO 13849-1:2015 Category 3 PL e, IEC 61508 SIL
3, EN 62061 SIL CL 3, EN 61800-5-2
MR-J5-_G-RJ/MR-J5W_-_G
EN ISO 13849-1:2015 Category 4 PL e, IEC 61508 SIL
3, EN 62061 SIL CL 3, EN 61800-5-2
8 USING STO FUNCTION
8.1 Introduction
8
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