External I/O Signal Connection Example Using An External Safety Relay Unit - Mitsubishi Electric MELSERVO MR-J5 Series User Manual

Ac servo system

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External I/O signal connection example using an external safety

This connection is for source interfaces. For the other I/O signals, refer to the following connection examples.

Page 53 MR-J5-_G_ (excluding MR-J5-_G_-HS_)

Page 59 MR-J5W_-_G_

Page 62 MR-J5-_B_

Page 65 MR-J5W_-_B_

Page 68 MR-J5-_A_

This connection example complies with the requirements up to ISO/EN ISO 13849-1:2015 Category 3 PL e and IEC/EN IEC

62061 maximum SIL 3.

For details, refer to the safety relay module user's manual.

The safety level depends on the setting values of [Pr. PF18 STO diagnosis error detection time] and [Pr. PSD18_Permissible

time for mismatches DI1] and whether STO input diagnosis by TOFB output is performed or not.

Safety relay

S1: STO shut-off switch (STO switch)

S2: Start switch (STO release switch)

S3: ON switch S4: OFF switch

KM1: Magnetic contactor

K3: Safety relay EMG:

Emergency stop switch

8 USING STO FUNCTION

8.3 Connection example

Servo amplifier

Control circuit