L2-DM

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960 will arrive on 2021-03-24

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    Switch/Keypad Input and 1 Zone PDM Controller, dimming, communicating



    The Dimming Module controls a Zone of lights by reading input signals from attached switches or keypads connected to the PDM Port, and creates a Channel signal on the PDM.  Up to 128 driver modules can listen to the Channel creating a group, or Zone, of lights.  The L2-DM can be “stacked” underneath any driver so both switch inputs and lights can be attached to the same PDM Port.  Only one L2-DM is allowed per Channel to create the PWM Channel signal.  The L2-DM also sends 12VDC Accessory Power from the Accessory Power Regulator (L2-APR) to the RJ45 Port through a protection fuse.  An L2-APR is required to power the microcontroller in the L2-DM.  Up to 16 L2-DM are powered by the L2-APR in the middle of the PDM.  L2-DM can receive commands and transmit their output status over the PDM communication bus to interface to third party control systems and the L2-EGW Ethernet Gateway.  Solving many more roles than just a dimmer for lighting, eleven modes of operation allow the L2-DM to read on/off, momentary, top/bottom switches, motion sensing, occupancy sensing, exhaust fan controls, ceiling fan controls, doorbells, and 1 to 8 button keypads.  No software or gateway is required for most configuration steps, even setting basic lighting scenes thanks to 1 button macros.  Advanced settings can be accessed using the L2-EGW.

    POWER & CONNECTIONS
    Power consumed0.2 W (Requires L2-APR on the same L2-PDM)
    Top connectorFemale 14 pin, 1 alignment pin (plugged)
    Bottom connectorMale 14 pin, 1 alignment pin (clipped)
    PDM voltage12-65VDC (pass through)
    Port voltage maximum65VDC (pass through)
    Current maximum1.5A (pass through)
    Port current maximum1.25A
    Accessory 12V protection1.2A non-resettable fuse
    RS485 CONTROL BUS
    Communication speed38,400 bps
    Control protocolPublished dimming module protocol
    ZONE CHANNEL OUTPUT
    Control channel signal type0-5VDC, PWM Broadcast
    Maximum drivers controlled128
    PORT SWITCH INPUT
    Switch types1 button momentary, Top/Bottom momentary 2 button, 1-8 button keypad, ON/OFF switch, Motion detector, Occupancy detector, Ambient light threshold sensor, Sensor relay (leaks, temperature, etc)
    PHYSICAL/ENVIRONMENTAL
    Dimensions1 x 1.25 x 1.1in (25 x 34 x 30mm)
    Operating temperature+32°F to +122°F (0°C to +50°C)
    Operating humidity5% to 95% Non-condensing
    RatingDry Rated
    EnvironmentalRoHS
    Safety certificationsFCC, CE
    WARRANTY
    Duration5 Years

    L2-DM SET button and indicator LED operation:

    The green LED indicator on the front face of the L2-DM indicates one of 11 Mode states (0..10) by flashing the Mode number, then a small pause, then repeating the cycle.  Wait for the pause and count the number of flashes to obtain the mode.

    Press the SET button on the face of the L2-DM to increment the Mode and cycle from 0 (solid LED indicator) to 10 flashes (Mode 10). Pressing the SET button when you see 10 flashes will return to Mode 0 (LED on solid).  


    MODE

    MODE NAME

    PORT DEVICES

    DESCRIPTION

    0

    Remote Only

    n/a

    Ignores all switch inputs from the Port. Only responds to serial data commands via the Comm Bus.

    1

    Normally Open Switch

    N/O door switch, Relay

    Sets zone to OFF when the switch input is shorted.  Sets zone to 100% when the switch input is open. Used for toggle switches or automatic door pushbuttons.

    2

    Normally Closed Switch

    N/C door switch, Relay

    Opposite action of Mode 1.  Turns on the zone when the input is an open circuit.

    3

    Button Toggle ON/OFF

    Buttons, L3-KP1, L3-TP1

    Toggles output between OFF and 100% each time the momentary button is released.   Top and Bottom buttons do the same function when using an L3-KP1.

    4

    Top/Bottom Switch w/ Restore Level

    L3-WK1

    Two momentary buttons:  Tap the UP button to set output to Restore Level. Tap UP button again to set output to 100%. Tap the DOWN button to turn OFF the zone.

    (5)

    Top/Bottom Switch w/ Restore Level and Dim/Raise

    L3-WK1

    Tap the UP button to set output to Restore Level. Tap the UP button again to set output to 100%. Tap the DOWN button to set output to OFF.  Hold the UP button to raise output to 100%.  Hold the DOWN button to lower output to 1%.  Default mode.

    6

    Button Toggle ON/OFF w/ Dim/Raise

    L3-KP1, L3-TP1

    Tap to cycle between A)Restore Level, B)100%, and C)OFF.  Hold when output is below 50% to raise output level. Stops at 100%.  Hold when above 50% to dim output. Stops at 1%. Alternate mode is selectable via Gateway commands.  Top and Bottom buttons on an L3-WK-D respond the same to the tap feature.

    7

    Silent Follower

    n/a

    Ignores all switch inputs and responds to level replies from DM messages with the same ID. This mode does not send a reply message to a level change.

    8

    Keypad, Touchpad

    L3-KP*, L3-TP*

    Performs one of 4 functions responding to one of 8 keypad buttons being pressed.  Any of the buttons can A)Request a Scene, B)Toggle a Zone ID, C)Toggle a Scene on/off, D)Raise the last zone button pressed, or E)Dim the last zone button pressed. Buttons 1..8 can be spread across multiple attached keypads attached to the L2-DM in groups of 4.

    9

    Timer Fan

    L3-KP*, L3-TP*

    Allows exhaust fans to be controlled by a 4 button keypad as follows: Top button toggles the Fan on/off. Buttons 2,3,4 start a countdown timer of 15, 30, and 60 minutes.

    10

    Doorbell

    Buttons, Relays, L3-DB*

    Momentarily turns on the PDM channel output for 1 second each time the doorbell is pressed.

    Manually set and view the ID number:

    Typically the ID #s will be assigned by the L2-EGW Gateway.  To manually assign an ID # of an L2-DM, Hold the SET button for 3 seconds and release.  Then tap the SET button the number of times of the ID. The green LED will flash each time you press the SET button.  Wait 5 seconds without pressing the button and the LED will remain solid for 2 seconds indicating the ID has been stored. To check the ID, hold the SET button for 3 seconds, release, and count the LED flashes.


    Tool-free commissioning using Configuration Macros:

    In addition to selecting the 11 Modes of operation, the SET button can be used to run configuration macros that store advanced settings like Scenes and Keypad buttons.

    To Reset or Store values in the L2-DM memory, count the LED indicator flashes and set the current Mode to one of the modes in the table below, then hold the SET button for 6 seconds or until you see fast flashes. This will run the Configuration Macro as follows:

    SET button RESET/STORE functions (HOLD 6 seconds to perform configuration macros)

    MODE

    DESCRIPTION

    FUNCTION(S) PERFORMED

    0

    “CC Lights”

    Resets min/max to 30/220.  Mode is set to 5.

    1

    “SV Bulbs”

    Resets min/max to 25/220.  Mode is set to 5.

    2

    “SV Strips”

    Resets min/max to 1/255.  Mode is set to 5.

    4

    “Fans”

    Resets min/max to 255/255.  Mode is set to 4.

    5

    “Factory Default”

    Resets min/max to 30/220.  Mode is set to 5. Reset ID to 0. Erase scenes. Reset EEPROM.

    6

    “Scenes”

    Add Scene 1 at the current level. Add Scene 2 at 255”ON” level. Add Scene 3 at 0”Off” level. Mode is set to 5.

    7

    “KP: 2 zones”

    Set buttons 1..4 as: 1)MyZone, 2)MyZone+1, 3)Dim, 4)Raise. Mode is set to 8. If ID was 0 (default) it is set to ID 3.

    8

    “KP: Scenes”

    Sets buttons 1..4 as: 1)Scene 1, 2)MyZone, 3)Scene2:"AllOn", 4)Scene3:"AllOff". Mode remains at 8. If ID was 0 (default) it is set to ID 3.

    9

    “Timer Fan”

    Sets buttons 1..4 as: 1)Zone x"self", 2)15min, 3)30min, 4)60min. Mode remains 9.


    Configuration Example 1:  Three lighting zones and a keypad in a Scenes configuration.

    The factory default is Mode 5 (5 flashes) so each example assumes each L2-DM starts in Mode 5.

    Kitchen CC-type lights and a wall switch attached to PDM port with DM+CC stacked in one port

    Set a dim level Use wall switch (Press the top button of the switch, then hold bottom to dim to level)

    Mode 6 then Reset Stores the scenes and current level scene 1

    Kitchen Pendants and a 4-button Keypad attached to PDM Port with DM+SV stacked

    Mode 1 then Reset Sets the min/max for the SV-Bulb recommend range

    Set dim level Use keypad buttons 1 (Up) and 3 (Down)

    Mode 6 then Reset Stores the scenes and current level scene 1

    Mode 8 then Reset Set "Scenes sample configuration" for the keypad buttons

    Under Cabinet Strips and a wall switch attached to PDM Port with DM+SV stacked

    Mode 2 then Reset Sets the min/max for the SV-Strips recommend range

    Set dim level Use wall switch

    Mode 6 then Reset Stores the scenes and current level scene 1

    To operate from the keypad:

    Press keypad button 1 for the "Welcome Scene" which recalls the dimmed levels stored before the Mode 6+Reset.

    Press keypad button 2 to toggle the pendant zone on/off.

    Press keypad button 3 for All On 100% Scene.

    Press keypad button 4 for All Off Scene.


    Configuration Example 2:  Three lighting zones and a keypad in a Scenes configuration.

    To change the keypad to control the downlights and the pendants with Zone toggle buttons, and Raise and Dim buttons, at the Keypad L2-DM, we need to assign an ID to the downlight zone and change the keypad configuration as follows:

    Kitchen CC lights zone L2-DM:

    Hold the SET button 3 seconds to enter “Ready to assign ID state”.

    Press the SET button 4 times only.  Wait 5 seconds.  To confirm ID, Hold SET button 3 seconds and count flashes (4).

    Kitchen Pendants zone with the keypad attached to the L2-DM:

    Mode 7 then Reset Sets "2 zones+raise/dim sample configuration" for the keypad buttons

    To operate from the keypad:

    Press keypad button 1 to toggle the pendant zone on/off (Zone ID 3, same as keypad)

    Press keypad button 2 to toggle the downlight zone on/off (Zone ID 4, the keypad DM ID+1)

    Press keypad button 3 to raise the last zone tapped

    Press keypad button 4 to dim the last zone tapped


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