Functional Safety - Mitsubishi Electric MELSERVO J5 Series User Manual

Functional safety

• If using the MR-J5W_-_G, the functional safety is available on servo amplifiers manufactured after
November 2019.
Servo amplifier specifications
Item
Safety Satisfied standards
performance
Mean time to dangerous failure
(MTTFd)
Diagnostic coverage (DC)
Probability of dangerous Failure per
Hour (PFH)
Mission time (T
M
*1 When DI/O connection (CN8) is used, diagnosis by test pulses is required in order to satisfy Category 4 PL e, SIL 3.
*2 Although the special proof tests within the mission time of the safety sub-function is not needed to be performed, the suggested
diagnostic test interval in IEC 61800-5-2: 2016 is at least one test per three months for Category 3 PL e, SIL 3.
Specifications
MR-J5-_G(4)
*1
EN ISO 13849-1:2015 Category 3 PL e, IEC
61508 SIL 3, EN 62061 SIL CL 3, EN 61800-5-2
MTTFd ≥ 100 [years] (314a)
DC = Medium, 97.6 [%]
PFH = 6.4 × 10
*2
) T = 20 [year]
M
MR-J5-_G(4)-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
MTTFd ≥ 100 [years] (750a)
DC = Medium, 96.5 [%]
-9
[1/h] PFH = 3 × 10
1.4 Servo amplifier standard specifications
-9
[1/h]
1 SPECIFICATIONS
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