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IRIO-TWS Lighting Control meodule for two way switch
 Moderated by: slychiu
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 Posted: Monday May 16th, 2022 03:13 am
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slychiu
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IRIO/TWS  has 4 ON/OFF lighting control circuits for on/off lighting control using Two Way Switches and 2 x 0-10V outputs for dimming. Each Lighting circuit consist of a Latching Relay to switch the light on/off and an internal Current Sensor to sense the state of the light when connected to a two way switch. Latching Relays remain at the last Open/Close state without requiring current in the relay coil, and saves energy.

The advantage of this method of control is the ability of the mechanical  two way switch to control the light even if the Comfort or IRIO is not working, as conventional Electrical/switch wiring is used. 
The sensitivity of the current sensor can be set to High Sensitivity (for energy efficient lights like LED bulbs) or Low sensitivity for incandescent or halogen bulbs) in order to cater for all types of lights.







Relay Specifications
No of Relays                     4
Relay Arrangement            1 Form C Latching Relays (0 Hold current)
Breakdown Voltage            4400VAC 1 min
Switching Capacity            277VAC, 6A
Mechanical Life                 3 milllion cycles
Electrical  Life                   50,000 cycles
Coil Current                     33 mA while switching, 0 Hold Current
Current Sensor Sensitivity The Current sensor can be set to 2 sensitvity levels.
Sensitivity Level 0
Minimum Current detected         0.4 mA RMS = 1 count in Sensor Register
Maximum Current detected        100 mA RMS = 255 counts in Sensor Register

Current > 100 mA will be limited to 255 Counts in Sensor Register
Sensitivity Level 1
Minimum Current detected         1.7 mA RMS = 1 count in Sensor Register
Maximum Current detected        430 mA RMS = 255 counts in Sensor Register

Current > 430 mA will be limited to 255 Counts in Sensor Register

Last edited on Monday May 16th, 2022 03:14 am by slychiu



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