[SML] Sensor Dimmer Problem

[Alf Sauve']

Is it just one circuit of the two dimmers or is it both circuits? If one 
then possibly a wiring problem.  If both then a control issue is possible.

A couple of other things to check.

On the front of each Sensor modules are two green lights indicating 
whether there is any signal or not.  These lights are NOT lit if the 
dimmer is set to zero.    Set the dimmer to 100% from the control panel 
and check the little lights.  If they're not lighting you have a rack 
issue.   If they're lit then go to the light fixture and measure hot to 
neutral, hot to the plug ground, and hot to an independent ground.  This 
will give you an indication if the neutral is a problem.

Neutrals are wired independently of the dimmer modules.  They are in 
the  back half of the cabinet.   And it could be a source of trouble if 
the one for this circuit wasn't tightened properly.

WARNING, don't stick your hand, or any tools or flashlight into the rack 
UNTIL you power it off.   There are some might large bus bars just 
behind the dimmers.

I wouldn't pull out a more than one tray to check anything without 
pulling the breakers to the cabinet.  It's too tempting to think, oh, I 
can just reach in there and give that a tweak.


On 3/29/2016 10:53 PM, Wayne Rasmussen via Stagecraft wrote:
> Is there a neutral in the rack for each dimmer? I did not pull all the 
> trays out to check that.