Skip to main content

 

Electronic Theatre Controls Inc

Dimmer Settings for Use with Source 4WRD

How to configure various ETC dimmer system circuits to work with S4WRD fixtures, including Sensor, Unison DRd, Legacy Unison, and Smart systems.

For assistance changing any dimmer settings, please feel free to call Technical Support.

For DMX Mode:

Set dimmer to a switched state or use a relay when controlling Source 4wrd in DMX mode.

For Line Dimming:
CEM3 with a D20
Parameter Value
Curve Mod Square
Threshold 1%
Min Scale (Percentage) 5 %
Max Scale (Percentage) 100 %
Regulation Off
Preheat Disabled
Inrush Protect OFF
DC Prevent OFF
Scale Load 100
Control Smoothing

All of these settings are available in the [Setup] menu on the CEM3 itself under [Dimmers].

The SCR Off Time may need to be increased from the default setting. Please contact ETC technical support for assistance in changing the SCR Off Time if necessary.

CEM3 with an ELV10
Parameter Value
Curve Mod Square
Threshold 1%
Min Scale (Percentage) 11%
Max Scale (Percentage) 100%
Regulation Off
Preheat Disabled
Inrush Protect OFF
DC Prevent OFF
Scale Load 100
Control Smoothing
CEM+ with D20 or ELV10

All settings for CEM+ can be accessed when logged in as a POWER USER via the user interface. Code is [3][3][3][3].

Parameter Value
Curve Mod Square
Threshold 1%
Min Scale 6V
Max Scale 140V
Regulation Off
Preheat Disabled
Inrush Protect OFF
DC Prevent OFF
Scale Load 100

In CEM+ it is very important that Max Scale be set to 140V. If this is not set then Regulation will never be truly disabled.

The SCR Off Time may need to be increased from the default setting. Please contact ETC technical support for assistance in changing the SCR Off Time if necessary.

Unison DRd with D20
Parameter Value
Curve Linear
Mode LED Smoothing Fwd
Min Scale 13V
Threshold 0%
Dynamic Preheat 0 seconds
Transformer Mode On
Unison DRd with ELV10
Parameter Value
Curve Linear
Mode LED Smoothing Fwd
Min Scale 15V
Threshold 0%
Dynamic Preheat 0 seconds
Transformer Mode On
Voltage Regulation Off
Unison Legacy DR and Sensor Classic with D20

Dimming with Unison Legacy DR and/or Sensor Classic racks is not ideal. Below 6% the unit will misfire (jump from full to off and back), but above should dim smoothly. Unfortunately there is no way in the older software to set a minimum threshold and avoid the poor dimming below 6%.

We do not recommend using Source 4wrd with Unison Legacy DR or Sensor Classic dimming.

We do not recommend using Source 4wrd with a Dimmer Doubler.

Smartbars and Smartpacks

Smartbars and packs do not have many settings that can be changed. The good news is that they run unregulated at all times. This means that S4wrd can function on these dimmers. They may appear steppy at some points of the fade, but they will dim.

REPORTING DIMMER SETTINGS FOR NON-ETC DIMMERS

If you are using S4wrd with another manufacturers dimmers, and have found settings that work for you, please let us know so we can share that information with other users.  To report the proper settings, please e-mail the rack and dimmer information and settings to service@etcconnect.com.

 

  • Was this article helpful?