Mitsubishi Electric MR-J4W2-0303B6 Instruction Manual page 571

APPENDIX
App. 15 STO function with SIL 3 certification
The MR-J4 series general-purpose AC servo amplifiers now comply with safety integrity level 3 (SIL 3) of the
IEC 61508:2010 functional safety standard.
App. 15.1 Target models
MR-J4 series AC servo amplifiers (excluding MR-J4-03A6(-RJ) and MR-J4W2-0303B6)
App. 15.2 Change of the compliance
The target MR-J4 servo amplifiers now comply with SIL 3 (Table app. 3).
Safety performance
(Standards certified by CB)
App. 15.3 Schedule
For the products manufactured in Japan, this change has been made sequentially from the June 2015
production.
For the products manufactured and sold in China, this change has been made sequentially from the
December 2015 production.
There may be cases where both the former and new products exist in the distribution stage.
App. 15.4 Use with SIL 3
Set the safety level with [Pr. PF18 STO diagnosis error detection time].
To use the servo amplifier with SIL 3, set [Pr. PF18 STO diagnosis error detection time] within the range of 1
to 60, connect the TOFB output (CN8) of the servo amplifier to the input of a SIL 3-certified controller and
execute the diagnosis. SIL 3 functional safety of the servo amplifiers is certified by TÜV SÜD.
App. 15.5 Use with SIL 2 (as conventional)
The servo amplifiers are still capable of SIL 2 as before regardless of whether the STO diagnosis function is
enabled or not.
Either of the conventionally-used TÜV Rheinland certification or the new TÜV SÜD certification may be
used.
Table app. 3 Compliance with SIL 3
Before change
EN ISO 13849-1 Category 3 PL d,
IEC 61508 SIL 2,
EN 62061 SIL CL 2,
EN 61800-5-2 STO function
App. - 56
After change
EN ISO 13849-1 Category 3 PL e,
IEC 61508 SIL 3,
EN 62061 SIL CL 3,
EN 61800-5-2 STO function