HWI-MI-120 HomeWorks Interactive Module …

1 Installation InstructionsHWI-MI-120 HomeWorks Interactive ModuleInterface AssemblyThis product may be covered under one or more of the following patents:4,797,599; 4,889,999; 5,170,068; 5,237,207 and corresponding foreign and foreign patents pending. Lutron and HomeWorks are registeredtrademarks of Lutron Electronics Co., Inc. 1999 Lutron Electronics Co., HWI-MI-120 in HWI-PNL-8 orHWI-PNL-5. See Figure 2 for For Surface Mounted Enclosures - UseNo. 8 nuts and bolts with washers (provided).b. For Recess Mounted Enclosures - UseNo. 12 self-tapping screws (provided).Danger - Locate and lock supply circuitbreaker in the OFF position beforeconnecting Module Wire Harness. Connect the4 conductor wire harness that is shipped insidethe Module interface assembly to the moduleharness connector on top of the circuit board(see Figure 1).

2 Note that the end of the harnessthat has the longest length of cable between theend and the second connector is the correct endto attach to the Module interface (this end willnormally be indicated by a serial number). Feedthe end of the harness through the moduleharness hole on the top end of the assembly (seeFigure 1).HWI-PNL-812354768 LNNLDH1DH2DH3DH4 LNNNNNNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNNNNNDH1DH2DH3DH4 LNGM odule Location(8 total) HWI-MI-120 Module InterfaceControl Wiring(Class 2)Preferred PowerWiring EntryAlternate PowerWiring EntryFigure 2 - Module LocationModule Location(5 total) HWI-MI-120 Module InterfaceControl Wiring(Class 2)Alternate PowerWiring EntryPreferred PowerWiring Entry+-COM +15 MUX MUXADDRESS1234 Figure 1 - HWI-MI-120 Power Input PlugModule HarnessConnectorRotary Address SwitchProcessorCommunication LinkManual OverrideConnectionModuleHarness Harness to Modules.

3 Starting withmodule #1, connect the Module harness to eachmodule that is installed. Any harness connectionsthat remain after all installed modules areconnected should be coiled and secured abovethe last - Harness must be secured such thatit cannot come into contact with primary(line voltage) AC Enclosure Address. Set the rotary switch onthe Module interface to the address assigned inthe HomeWorks Interactive Communication Wiring. Connect thecontrol wiring to the processor communicationlink terminal block on the lower end of the moduleinterface board. See Figure 3. The processorcommunication link must be connected in a daisychain configuration with a maximum total cablelength of 1000 feet (300m). Connect terminals 1,3 and 4 (Common, MUX, MUX) to the 4-positionterminal block.

4 See Figure 3. DO NOT connectterminal 2 (+15V) because the Module interfaceis powered from the the processor communication linkon the last Module interface . If any of themodule interfaces are located more than 50 feet( ) from the processor, the last moduleinterface on the chain must utilize a terminatoracross terminals 3 and 4. LT-1 terminators thatare included with the processor may be used forthis application. See Figure 3. If LT-1s areunavailable, a 1/4 Watt resistor between 100 and150 ohms may be placed from terminal 3 toterminal 4 to provide termination. Termination atthe processor end of the chain is included on theprocessor board so an LT-1 is not Input Power. Connect the power inputplug (black and white wires) into the control feedharness that comes pre-installed in (Optional) Connect manual override cable tothe terminal blocks as shown in Figure 3.

5 Themanual override scene (as programmed in theHomeWorks Interactive Utility) is activated for allmodules connected to the Module interface byclosing a switch that is wired between the twoterminals (see Figure 3). The switch (or relay)contacts must be rated for switching 50mA Installing a separate switch for each MIgives the customer the maximum flexibility sinceit allows separate override scenes for each RPMenclosure. A single switch can be used if all of theMIs are wired to it in parallel, but proper polaritymust be maintained across all units. In thisconfiguration, the switch must be rated forswitching the sum of the current for all of themodule interfaces connected ( , 6 moduleinterfaces wired to a single override switch wouldrequire a switch rated for 300mA @ 30 VDC).

6 Forcable runs less than 1000 feet (300m) that areconnected to a single Module interface , 16 24 AWG ( ) wiring can be used. Forcable runs exceeding 1000 feet (300m) or thosethat are connected to multiple Module Interfaces,16 18 AWG ( ) wiring must be (Optional) Program Override Scene. Themanual override levels can be programmed usingthe HomeWorks Interactive Utility. These levelsare set in the load schedule screen by pressingfunction key F5 on the Turn Power ON. Restore the supply circuitbreaker to the ON Verify that the power LED is ON (see Figure 3).If the power LED is ON, proceed to step 12. If it isnot ON, and other LEDs on the Module Interfaceare ON, terminal 2 in the processorcommunication link terminal block is connectedwhen it shouldn't be. Remove the connection toterminal 2 before proceeding.

7 If all LEDs on themodule interface are OFF, verify that the 24 VACterminals from the transformer are connected tothe board, the power plug for the moduleinterface is plugged in and wired to the enclosureterminal blocks, and that the AC circuit breaker isturned Verify that the Module interface is heartbeat LED should flash whenever theunit is powered (see figure 3).13. Verify processor and modulecommunications. The LEDs for processor andmodule communications will flash to indicateproper operation. Module communications aredependent upon processor communications. Ifthe LEDs are not flashing, check the properconnection of the processor communication linkterminal block at terminals 3 and 4, and verifythat the processor connections are properlymade and that it is powered and processor must have a valid databaseuploaded from the HomeWorks Interactive Utilityand the Module interface must be properlyaddressed for the system to function If the connected modules functionintermittently, check link wiring and +-COM +15 MUX MUXADDRESS123443+-COM +15 MUX MUXADDRESS1234 Figure 3 - HWI-MI-120 DetailPowerIndicatorLED24 VACI nputModuleHarnessConnectorModuleCommunic ation LEDP rocessorCommunicationLinkMI Heartbeat LEDP rocessorCommunication LEDD ealer-providedManual OverrideSwitch16 24 AWG( )

8 Wiring4 - MUX3 - MUX1 - COMLT-1 Terminator (if needed)NOTE: The LT-1 should beinstalled on the LASTM odule interface (furthestfrom the processor).3To HWI Processor orother MWI-MI-120 Module InterfacesLutron Electronics Co., Suter RoadCoopersburg, PA 18036-1299 Made and printed in the 6/99 P/N 043-038 Rev. BWarrantyLutron will, at its option, repair or replace any unit that is defective in materials ormanufacture within two years after the purchase. This warranty is in lieu of all otherwarranties, express or implied, and the implied warranty of merchantability is limited totwo years from purchase. This warranty does not cover the cost of installation, removalor reinstallation, or damage resulting from misuse, abuse, or damage from improperwiring or installation.

9 This warranty does not cover incidental or consequential warranty gives you specific legal rights, and you may have other rights which varyfrom state to state. Some states do not allow the exclusion or limitation of incidental orconsequential damages, or limitation on how long an implied warranty may last, so theabove limitations may not apply to and Sales AssistanceIf you need assistance, call the toll-free LutronTechnical Assistance Hotline. Please provide exactmodel number when calling.(800) 523-9466 ( , Canada and the Caribbean)Other countries call:Tel:(610) 282-3800 Fax: (610) 282-3090 Visit our Web site at HeadquartersLutron Electronics Co., Suter RoadCoopersburg, PA 18036-1299, FREE: (800) 523-9466 ( , Canada and theCaribbean)Tel: (610) 282-3800; International 1 610 282-3800 Fax: (610) 282-3090; International 1 610 282-3090 European HeadquartersLutron EA LTDL utron House6 Sovereign CloseWappingLondon, E1 9HW EnglandFREEPHONE: (0800) 28 21 07 ( )Tel: (171) 702-0657; International 44 171 702-0657 Fax: (171) 480-6899; International 44 171 480-6899 Asian HeadquartersLutron Asuka Corporation Floor, Kowa Shiba-Koen Shiba-Koen 1 chomeMinato-ku, Tokyo105-0011 JapanTOLL FREE: (0120) 083 417 (Japan)Tel: (3) 5405-7333; International 81-3-5405-7333 Fax: (3) 5405-7496: International 81-3-5405-7496 Hong Kong Sales OfficeTel: 2104-7733; International 852-2104-7733 Fax: 2104-7633.

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