SEM Confusion

[slychiu]

The LEM01 is not designed to sit and screw on top of the CM9001 PCB.  LEM02B with 8 input 0 outputs which is much smaller can sit and mount on top of CM9001.
There are too many pcbs eg OP03, ETH03, LEM02B  which have mounting positions on of of the PCB.

LEM01 is supposed to be mounted on the base of the enclosure where there ae screw posts provided for either UCM or LEM PCBs.

Hence either mount the LEM01B on the enclosure base, or get LEM02B if you would like to mount on top of CM9001
see the photo below for CM9001 with LEM02, ETH03, OP03 mounted (SEM02 is the same PCB as the CPU side of CM9001)

[jbarne41]

Hi,

My first problem is LEM02B is not listed for sale on the Laser website..that is really what I wanted to order. Have I been sold old stock? ( This means I now have an SEM with no EOL shunts and a LEM with shunts)

The second Problem is that to mount the LEM02-M2 in the bottom of the enclosure there are no mounting posts only holes..which means you have to have nuts protruding on the back on the enclosure which means it will not sit flush against the wall. 

[jbarne41]

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[jbarne41]

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[jbarne41]

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[jbarne41]

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[jbarne41]

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[slychiu]

If you have LEM01-M2 with CM9001 the shunts should be positioned away from the terminal Blocks, ie require double EOL resistors, and you should install the 2 EOL resistors supplied (Your LEM01 in the photo has EOL shunts closer to the terminal blocks).  Please check with Laser regarding the parts you have been supplied as the website listing may be out of date.

LEM01-M2 and LEM02-M2 can be mounted o the base without protrusion. Next week I will show you a photo of the mounting method and correct standoffs to use

[slychiu]

The LEM01 should be provided with the standoff as in the attached photo. As yoou see this is inserted from the bottom of the metal box and will not protrude from the bottom. There may have been a ix u in the standoffs supplied with the LEM01