Gebruiksaanwijzing /service van het product DDC4 van de fabrikant Lathem
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Digital Display Wall Clock DDC2 / DDC4 Seri es Installation & User's Guide.
OMNI:CHRON, m ini:mast er, Lathem and the Lathem logo are regi stered tradem arks of Lathem Tim e Corporation. Other product nam es mentioned i n this m anual may be trademarks of their respective companies and are hereby ac knowledged.
Table of Contents Introduc tion................................................................................................................... .................................. 1 Clock Oper ation ..................................................
DDC4 (Double Mo unt - Ce iling) .................................................................................................. ........ 19 Setting the Tim e ..........................................................................................
As a Count U p Timer ............................................................................................................ ................ 52 As a Count D own Timer ..............................................................................
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Page 1 Digital Display W all Clock Guid e Introduction The Digital Display Series Wall Clocks are de signed with 2-inch or 4-inch red LED displays that can be viewed from great distances; the 4-inch model as far a w ay as 100 feet, the 2-inch m odel from as far awa y as 50 feet.
Digital Display W all Clock Gu ide Page 2 About this Manual This manual will guide you through the installation, setup and wiring of your DDC Series Wall Clock.
Page 3 Digital Display W all Clock Guid e Optional Accessories VSE0050 Power Cord, 6 feet. D DC Series Wall Clo cks are shipped w ithout power cords. SAM0626 Double Ceiling Mount Kit for DDC2 or DDC4 .
Digital Display W all Clock Gu ide Page 4 4 - #6 Lock Washers 4 - #6 Hex Nuts SAM0625 Kit (right) In cludes: 1 - Mounting Plate Assembly 2 - Modified En d Caps 1 - End Cap Support 2 - Chase Nipples 4 .
Page 5 Digital Display W all Clock Guid e Configuring the DDC Series W all Clock Setting the DIP Switches - DDC2 / DDC4 Series DDC2 Remove the four phillip s head screws from the left or the right end cap and remove. Slide th e lens and circuit board assembly out of the case.
Digital Display W all Clock Gu ide Page 6 DIP Switch Settings Table 1 - S1 (1-5) Seconda ry Clock Correctio n 1 2 3 4 5 Secondary Clock Selection 0=Closed 1=Open *=Factory Default 0 0 0 0 0 Stand Alon.
Page 7 Digital Display W all Clock Guid e Configuring RS485 Communications - DDC2/4-RS Series When multiple DDC2 (4)-RS Series Wall Clocks are installed as slave units to either the Lathem LTR4- 512 o.
Digital Display W all Clock Gu ide Page 8 When used as a RS485 clock, the master clock will send a signal to the wall clo ck every minute. The 9- Volt alkaline battery (not included) is optional in these types of installations.
Page 9 Digital Display W all Clock Guid e AC Return) Attach the ground wir e of the cord (normally g reen) to the green ground screw lo cated on the inside back of the case. Slid e the lens and circuit bo ard assembly back into the case, repla ce the end cap and secure with the four phillip s head screws.
Digital Display W all Clock Gu ide Page 10 Replacing an Existing DDC4 Wall Clock When replacing an older style DDC4 Wall Clock it will be necessary to remove any connectors used by the older style cl ock and at tach the wires to the ne w DDC Serie s Wall Cloc k as describe d above.
Page 11 Digital Display W all Clock Gu ide Mounting - DDC2 / DDC4 Series The DDC Series Wall Clocks can be mounted directly to a wall, to a single gang outlet box, double hung from the wall or double hung from the ceiling.
Digital Display W all Clock Gu ide Page 12 » Slide the lens and circuit board assem bly back into the case, replace the e nd cap and secu re with the four phillips he ad screws. DDC4 » After deciding the location wh ere the clock will be mounted, m ake two marks 12" apa rt and horizontal.
Page 13 Digital Display W all Clock Gu ide DDC2 Note: If mounting near a ceiling, make sure the top of the single gang box is at least 2 1/4" away from the ceiling. Note: Make su re you have at least 10 1/2 " of side cle arance on one si de in order t o remove t he lens and circuit board assembly.
Digital Display W all Clock Gu ide Page 14 » Slide the front panel display back int o the ca se, replace the end cap and se cure with the two phillips head screws.
Page 15 Digital Display W all Clock Gu ide Note: The long dimension of the mou nting plate m ust be perpendi cular to the ground to a ssure proper alignment of wall clocks. See page 15, figure 4 fo r DDC2 detail s. See page 16, figure 5 fo r DDC4 detail s.
Digital Display W all Clock Gu ide Page 16 DDC4 (Double Mount - Wall) » Remove the two phillip s head screws from the left and the right end caps of the two DDC4 clocks and remove.
Page 17 Digital Display W all Clock Gu ide Double Mount - Ceiling Requires opt ional mount ing kit (SAM0626) Tools requi red for m ounting the cl ock: Flat blade screwdriver Phillips head screwdriver 15/16" o pen end wrench The double ceiling m ount plate attaches to a double or si ngle gang box installed securely in the ceiling.
Digital Display W all Clock Gu ide Page 18 DDC2 (Double Mount - Ceiling) Note: Make sure yo u have at least 10 1/2" of side cleara nce on one si de in order to remove the le ns and circuit board assembly. » Remove the four ph illips head screws from the left and th e right end caps of the two DDC2 clocks and remove.
Page 19 Digital Display W all Clock Gu ide DDC4 (Double Mount - Ceiling) Note: Make sure you have at least 16" of side clear ance on one side in order to remove t he front panel assembly. » Remove the two phillip s head screws from the left and the right end caps of the two DDC4 clocks and remove.
Digital Display W all Clock Gu ide Page 20 Setting the T ime Time is set on the DDC Seri es Wall Cl ocks by de pressing buttons located on the left side of the front panel. There are tw o setting but tons, "H" for hour and "M' for mi nute.
Page 21 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Appendix A - DDC2-RS / 4-RS Seco ndary Clock W iring Diagrams Note: See Ap pendix B for DDC2-RS- 24 / DDC4 -RS-24 wi ring. Stand-Alone (115VAC) GRND AC IN AC RTN BLK BLK Hour and Mi nutes must be se t manually.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 22 3-Wire Synchronous (115VAC) H M BLU / WHT Run BRN / WHT BLK BLK Correction AC Return 115VAC From Master Cloc k To Other Cloc ks 6 7 8 Clock will correct minutes hourly at HH:59 and hour and m inutes twice daily at 5:59.
Page 23 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring 3-Wire Synchronous (24VAC) 5 6 7 8 OPEN 1 2 3 4 Set switches 1-5 of S1 as shown. Indicates depr essed side of s witch To Other Cloc ks Clock will correct minutes hourly at HH:59 and hour and m inutes twice daily at 5:59.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 24 3-Wire minute Impulse (59 th Minute) BRN / WHT GRND AC IN A C RTN A VIO / WHT YEL / WHT BLK BLK B C To Other Cloc ks 24VDC From Master Cloc k H M 115VAC Local Powe r OPEN 1 2 3 4 5 Clock must be set within 20 m inutes of actual time for master to synchronize.
Page 25 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring 3-Wire Minute Impulse (59 th Minute With 1 2 Hour Correction) B C 1 2 3 4 5 6 Clock will correct minutes hourly at HH:58 and hour and m inutes twice daily at 5:58.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 26 Standard Electric Synchronous 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return Clock will correct minutes hourly at HH:59 and hour and m inutes twice daily at 5:12.
Page 27 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Standard Electric AR-2A 2-Wire Dual Voltage PC OPEN 1 2 3 4 5 6 Clock must be set to actual tim e. Use of a 9Vol t alkaline battery is recommended to avoid resets after power failures. 7 8 Set switches 1-5 of S1 as shown.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 28 Standard Electric AR-2 2-Wire Dual Voltage PC OPEN 1 2 3 4 5 6 Clock must be set to actual tim e. Use of a 9Vol t alkaline battery is recommended to avoid resets after power failures. 7 8 Set switches 1-5 of S1 as shown.
Page 29 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Synchronous Wired 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return 6 7 8 OPEN 1 2 3 4 5 Set switches 1-5 of S1 as shown.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 30 Simplex 59 th Minute Dual Motor 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return Clock must be set to proper hour. Clock will correct minutes hourly at HH:58.
Page 31 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Simplex 45 th Minute Dual Motor 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return Clock must be set to proper hour. Clock will correct minutes hourly at HH:45.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 32 Edwards Dual Motor 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return Clock must be set to actual tim e. Use of a 9Vol t alkaline battery is recommended to avoid resets after power failures.
Page 33 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Standard Electric AR-3 3-Wire Minute Impulse To Other Cloc ks 24VDC / 48VDC From Master Cloc k BRN/ WHT 24 VDC Pulse Common YEL / WHT 48 VDC Correction GRND AC IN AC RTN BLK BLK VIO / WHT H M 115VAC Local Powe r Clock must be set to actual tim e.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 34 National Synchronous Wired 115VAC From Master Cloc k To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return Clock will correct minutes hourly at HH:00 and hour and m inutes twice daily at 6:00.
Page 35 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Stromberg Synchronous Wired (56 th Minute) To Other Cloc ks H M BLU / WHT Run Correction BRN / WHT BLK BLK AC Return 115VAC From Master Cloc k Clock will correct minutes hourly at HH:56 and hour and m inutes twice daily at 11:56 .
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 36 Cincinnati D1 COMMON 1 2 3 4 5 Clock must be set within 20 m inutes of actual time for master to synchronize. Use of a 9Volt alkaline battery is rec ommended t o avoid resets after power failures.
Page 37 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Cincinnati D6, Edwards 2406 AB YEL / WHT GRND AC IN AC RTN BLK BLK VIO / WHT H M To Other Cloc ks PC 24-36VDC From Master Cloc k 115VAC Local Powe r Clock must be set within 20 m inutes of actual time for master to synchronize.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 38 2-Wire Pulse Alternating (24VDC) A YEL / WHT GRND AC IN AC RTN BLK BLK VIO / WHT B To Other Cloc ks 24VDC From Master Cloc k H M 115VAC Local Powe r Clock must be set within 20 m inutes of actual time for master to synchronize.
Page 39 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring Electronic Coded WHT Reciever 1 2 3 4 5 6 Clock will correct minutes hourly at HH:57 and hour and m inutes twice daily at 5:57. Requires 3510Hz receiver (not supplied) Set switches 1-5 of S1 as shown.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 40 Straight Frequency WHT Reciever 1 2 3 4 5 6 Clock will correct minutes hourly at HH:57 and hour and m inutes twice daily at 5:57. Requires 3510Hz receiver (not supplied) Set switches 1-5 of S1 as shown.
Page 41 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring 3-Wire Minute Impulse (58 th Minute) B C 1 2 3 4 5 Clock must be set within 20 m inutes of actual time for master to synchronize. Use of a 9Volt alkaline battery is rec ommended t o avoid resets after power failures.
DDC2 / 4-RS W iring Digital Display W all Clock Guid e Page 42 3-Wire Minute Impulse (44 th Minute) B C 1 2 3 4 5 Clock must be set within 20 m inutes of actual time for master to synchronize. Use of a 9Volt alkaline battery is rec ommended t o avoid resets after power failures.
Page 43 Digital Display W all Clock Gu ide DDC2 / 4-RS W iring 2-Wire Reverse Polari ty Minute Impulse (59 th Minute) AB PC YEL / WHT GRND AC IN AC RTN BLK BLK VIO / WHT H M 24VDC From Master Cloc k 115VAC Local Powe r To Other Cloc ks Clock must be set within 20 m inutes of actual time for master to synchronize.
DDC2 / 4-RS -2 4 Wiring Digital Display W all Clock Guide Page 44 Appendix B - DDC2-RS-24 / DDC4 -RS-24 Wiring The DDC2-RS-24 and the DDC4-RS-24 allow for 24VAC supplied f rom the Master Clock or Power Supply to power it for normal operation. These models can be used in installations where local 115 VAC power m ay not be avai lable.
Page 45 Digital Display W all Clock Gu ide DDC2 / 4-RS -24 Wiring DDC2-RS-24 / DDC4-RS-24 Wiring M BLU / WHT Run BRN / WHT BLK BLK H O P EN 1 2 3 4 5 6 7 8 Correction AC Return To Other Cloc ks Set switches 1-5 of S1 as shown.
DDC2 / 4-RS -4 85 Wiring Digital Display W all Clock Guide Page 46 Appendix C - RS485 Wiring Diagrams RS485 Data Format The data string that sends the time to the DDC2 / DDC4 Series Wall Clocks is formatted in such a manner that a utility can be written to achieve tim e updates fr om a personal computer.
Page 47 Digital Display W all Clock Guid e DDC2 / 4-RS -485 Wiring OMCII to DDC2-RS / 4-RS Pin Signal Signal JP4 Connection 1 Transmit Data (-) Transmit Data (-) D- 2 Transmit Data (+ ) Transmit Data .
DDC2 / 4-RS -4 85 Wiring Digital Display W all Clock Guide Page 48 LTR0 to DDC2-RS / 4-RS Wire Signal Signal JP4 Connection Gray Transmit Data (-) Transmit Data (-) D- Orange Transmit Data (+) Transmi.
Page 49 Digital Display W all Clock Guid e DDC2 / 4-RS -485 Wiring LTR4 / 8-512 to DDC2-RS / 4-RS Terminal # Signal Signal JP4 Connection 9 (D-) Transmit Data (-) Transmit Data (-) D- 8 (D+) Transmit Data (+) Transmit Data (+) D+ BLK BLK LTR4 / 8-512 Term inal Connections Cable should be RS232 twisted pair / CAT3 or CAT5 type.
DDC-TC Timer Control Panel Digital Display Wall Clock Guide Page 50 Appendix D - DDC-TC Timer Control Panel Wiring The DDC-TC can be connected to the DDC Series Wall Clock wit h a 6 cond uctor CAT3 or CAT5 networ k cable. The DDC-TC can be mounted up t o 200 feet from the DDC Series Wall Clock.
Page 51 Digital Display Wall Clock Guide DDC-TC Timer Control Panel Installation The DDC-TC m ounts directly to a standard , double-gang wall box. (n ot included) Once the wirin g has been attached, p.
DDC-TC Timer Control Panel Digital Display Wall Clock Guide Page 52 Operation As a Count Up Timer To start the c ount: press Count Up To pause the c ount: press Stop / Continue To continue the count: .
Page 53 Digital Display W all Clock Guid e Specifications Appendix E - L TR-GPS Satellite Re ceiver / Clock Synchronizer Lathem’s LTR-GPS is a Global Positioni ng Satellite r eceiver using 12-channels to access the accurate date and time signal transm itted each second by 24 satellite s in geosynchronous orbit around the globe.
Warranty Digital Display W all Clock Guide Page 54 The LTR-GPS package includes: LTR-GPS Satellite Synchronizer 115vAC, 2 . 7w, 50/6 0Hz Power Adapter Active GPS Antenna with 2 5ft.
Page 55 Digital Display W all Clock Guid e Specifications Connecting to a Lathem DDC2-RS or DDC4-RS Digital Clock DDC2-R S / DDC4-R S.
Warranty Digital Display W all Clock Guide Page 56 Appendix F - S pecifications Dimensi ons DDC2 4 7/8" H X 10 1/4" W X 3 1/8" D 12.4 cm H X 26.2 cm W X 7.9 cm D DDC4 6 3/4" H X 15 1/2" W X 3 1/8" D 17.1 cm H X 39 cm W X 7.
Page 57 Digital Display W all Clock Guid e Specifications Appendix G - W arranty Limited One-Year Limited Warranty Lathem warrants the hard ware products descri bed in this guide against defects in material and workmanship for a period of one year from date of original purchase from Lathem or from an authorized Lathem reselle r.
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