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SM322 relay output

10/14/2014 12:47 PM	Rate (0)
Jarrar Experienced Member Joined: 4/12/2013 Last visit: 7/24/2025 Posts: 47 Rating: (0)	Dear All, we are using Relay Output module (6ES7 322-1HH01-0AA0) in an application where the outputs continuously get ON and OFF For example in a Pencil making plant the output channels get ON and OFF in every second. This means than the output channels get ON and OFF 86,400 times in just one day. Thus In 2 days , the limit mentioned in catalog (Number of operating cycles) for 6ES7 322-1HH01-0AA0 will be crossed. Are we interpreting correctly and shall we go for any alternative? Please advice

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10/14/2014 1:05 PM	Rate (0)
olloy Silver Member Joined: 8/27/2010 Last visit: 4/13/2024 Posts: 417 Rating: (37)	Hi! Usually switching capacity and service life of contacts depends on the load (resistive or inductive), voltage and current. Here is a table from module data manual (see attachment). If it is insufficient, please use digital output instead of relay output and add solid-state-relays. BR, olloy Attachment servicelife.jpg (281 Downloads)

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10/14/2014 1:22 PM	Rate (0)
eisenpferdreiter Posts: 1058 Rating: (93)	Jarrar Dear All, we are using Relay Output module (6ES7 322-1HH01-0AA0) in an application where the outputs continuously get ON and OFF For example in a Pencil making plant the output channels get ON and OFF in every second. This means than the output channels get ON and OFF 86,400 times in just one day. Thus In 2 days , the limit mentioned in catalog (Number of operating cycles) for 6ES7 322-1HH01-0AA0 will be crossed. Are we interpreting correctly and shall we go for any alternative? Please advice Hello Jarrar, I guess in your case it would be better to use 6ES7322-8BH01-0AB0 SM322, 16DO, 24V DC, 0,5A and solid state relais instead relay output. regards
eisenpferdreiter Posts: 1058 Rating: (93)
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10/14/2014 4:46 PM	Rate (0)
Jarrar Experienced Member Joined: 4/12/2013 Last visit: 7/24/2025 Posts: 47 Rating: (0)	thanks best regards

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2/23/2015 5:38 PM	Rate (0)
wzrdstrm Posts: 16 Rating: (1)	use and FH card, they are triac based, better life
wzrdstrm Posts: 16 Rating: (1)
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