Mitsubishi Electric MELFA CR800 Series Special Specifications Manual page 147

<Wiring example 4>: Connect the controller to the safety relay
Use the controller's emergency stop button to input safety relay.
[Caution]
1
)The performance of this product must be compliant with the requirements of ISO 13849-1 Category 4. The product
cannot be used in the condition comparable to Category 3.
2) Setup a safety relay on the user equipment, and when using to input the emergency stop button on the controller,
please only use a safety relay that functions when connecting the input to the one end of the 2 systems (i.e.
QS90SR2SP (Manufacture: Mitsubishi Electric Corporation)).
3) When connecting emergency stop button output to an exterior safety relay, please take note of the polarity and make
sure that the electrical current flows in the same direction as indicated by the dotted arrows in the two places in the
diagram. If the polarity is setup incorrectly this function will not operate correctly. Please connect 3 and 10 terminal of
CNUSR11 connector to 24V.
Fig.6-4 ： Example of safety measures (wiring example 4）
6Safety
Safety 6-134