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BERO Vs NAMUR

Created by: sunn7 at: 5/15/2012 11:50 AM (2 Replies)

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sunn7 Posts: 152 Rating: (2)	Hi all I was in selecting of NAMUR card and came through BERO suitable cards in S7-300 Modules. 1. what is this BERO? Is it same NAMUR? 2. A BERO card will work for NAMUR contacts? Rgds Sunn7
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5/15/2012 11:56 PM

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Hellosunn7,

For the first question, Please read the 2 attached documents and look at simplified diagram for NAMUR switches/sensors in thislink.For sure 5 mins with Google will give you better info.

For the second question, The answer is no.

The BERO card needs voltage to sense 1 state while the NAMUR card needs current to sense the 1 state.

Bero Card6ES7321-1BL00-0AA0

Input voltage
Type of input voltage	DC
Rated value, DC	24V
for signal "0"	-30 to +5 V
for signal "1"	13 to 30 V
Input current
for signal "1", typ.	7mA

NAMUR card 6ES7321-7RD00-0AB0

Input voltage
Rated value, DC	8.2V;from internal power circuit supply
Input current
on wire break, max.	0.1mA
on short -circuit, max.	8.5mA
for NAMUR encoders
for signal "0"	0.35 to 1.2 mA
for signal "1"	2.1 to 7 mA

Best regards,

H-H

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5/16/2012 7:03 PM	Rate (0)
gre_m Posts: 947 Rating: (45)	According to my information sold to Siemens BERO-production of sensors
gre_m Posts: 947 Rating: (45)
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Created by: sunn7 at: 5/15/2012 11:50 AM (2 Replies)

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