TIDA-010071: Enquire detailed connections for Relay's contact weld detection circuit

Tiger Yeh

Part Number: TIDA-010071

Hi Sir,

Based on tidm249 APN, cloud you provide us detailed circuit?

We don’t know Net: RELAY_3 , RELAY_2 , RELAY_1 how to connect to Line & Neutral relays?

There are two relays in customer's circuit.

And they want to check both relays connections with below Relay's contact weld detection circuit.

Thanks and Best regards,

Tiger

0 Lei Song over 2 years ago

Hi,

Sorry, the signal names in the schematic might be a little bit confusing.

RELAY1 is the line voltage of relay input,

RELAY2 is the line voltage of reply output,

RELAY3 is the neutral voltage of relay input.

pls ref to the pic below.

Regards

Lei

0 Tiger Yeh over 2 years ago in reply to Lei Song

Thanks Lei.

Could you please confirm the connection by below diagram?

Thanks and Best regards,

Tiger

0 Lei Song over 2 years ago in reply to Tiger Yeh

Hi,

I made a correction as below:

Regards

Lei

0 Tiger Yeh over 2 years ago in reply to Lei Song

Thanks for review, Lei.

As your modification, it looks U1 is for detection of U4.

Whether my customer need additional one ISO1212 for U7 relay detection?

Thanks and Best regards,

Tiger

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