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®
Sonachron (DWA-S)
User’s Manual
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Lathem Time Corporation 200 Selig Drive, SW Atlanta, GA 30336 1-800-241-4990 1-404-691-0400 www.lathem.com Document No. OMSC-0708 Copyright © 2008 Lathem Time Corporation. All rights reserved.
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TABLE OF CONTENTS SPECIFICATIONS..................................................... 1 INTRODUCTION ....................................................... 2 QUICK START STEPS.............................................. 3 DIP SWITCH SETTINGS........................................... 8 PROGRAMMING A SECURITY CODE..................... 9 UNLOCKING THE KEYPAD.................................... 10 SETTING TIME AND DATE .................................... 10 PROGRAMMING EVENTS (On/Off
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SPECIFICATIONS Input Voltage 115 VAC (220 Optional) Input Frequency 50/60 Hz Input Power 20 Watts Max Standby Power 1.2 Ah, 6 V battery Standby Time 10 Days Timing Accuracy Per line frequency Number of Events 1440 (any combination of weekdays) Signal Duration Programmable – 1 to 99 secs Daylight Savings Automatic (Disable by dip switch) Time Display 12 or 24 hr selectable Comm Port RS485 – Receiver Relays 10 Amp Dry Contact Temperature Range 0 C to 60 C Voltage Range +/ - 10 % of
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INTRODUCTION The DWA-S is a single circuit signaling device which can be used as a bell ringer or on/off controller. It is capable of retaining up to 1440 separate events for each day of the week in memory plus a floating lunch and break schedule which can be activated with a single key on the keypad or a remote switch. Automatic adjustment for daylight savings time change is also provided. A liquid crystal display on the front of the unit displays the current time (in 12 or 24 hour f
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QUICK START STEPS Step 1 – Mount Unit to Wall 1. Unscrew 2 left screws to remove left side panel. 2. Slide front panel left. 3. Disconnect cable connector from right side of front panel. 4. Slide front panel left and remove completely. 5. Find a suitable location on the wall that allows at least 10 inches of clearance on the left side to allow the front panel to slide on and off. 6. Mark 3 hole positions on wall for mounting the unit. Mark Holes 7. Remove plastic bushing from back
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9. Secure unit to wall using screws (not provided). Drill Holes Wall Anchor Step 2 – Swith Off Power to AC Circuit 1. SWITCH OFF THE CIRCUIT THAT WILL FEED AC POWER TO THE UNIT BEFORE PROCEDING. Step 3 – Connect Wires for 115VAC or 24VAC Bells IMPORTANT! This unit is shipped from the factory as a Bell Ringer. To change to an ON/OFF controller, see DIP Switch Setting on page 8. This section provides instructions for wiring 115VAC or 24VAC bells, see Wiring Diagrams on pages 20 –
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IMPORTANT: DO NOT PROCEED IF WIRE COLORS ARE DIFFERENT THAN SHOWN OR IF YOU ARE UNSURE WHICH WIRES ARE AC HOT, AC NEUTRAL AND GROUND. THERE IS RISK OF PERSONAL INJURY AND DAMAGE TO THE UNIT THAT’S NOT COVERED BY WARRANTY. INEXPENSIVE TESTERS ARE AVAILABLE AT YOUR LOCAL HOME ELECTRICAL SUPPLY STORE FOR VERIFYING WIRES. 3. Connect wires from power cord as follows: green (ground) wire to “GND”, white (AC neutral) wire to Line Neutral, and black (AC Hot) wire to Line Hot. 4. For 115VAC
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Step 5 – Secure Cover 1. Align front panel in track and slide half way to right. 2. Secure ribbon cable on right edge of front panel. 3. Slide front panel all the way closed making sure that the cable lays down. 4. Attach red battery wire onto battery post. 5. Secure left side panel with the screws. CPU Board Reconnect Cable Red Battery Wire Step 8 – Restore Power to AC Circuit 1. MAKE SURE THE SIDE COVERS ARE SECURE THEN SWITCH ON THE AC POWER TO THE CIRCUIT FEEDING POWE
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Step 9 – Test Signaling 1. Your display should appear as shown in the picture below. If not, please contact your dealer or Lathem Time directly. SECURITY CODE 2. Enter a security code using the day of week keys (remember the days that you selected). 3. Press Run to return to the normal display showing current time of day. 4. Press the Manual Bells button and confirm that the bells or horns are sounding properly. If not, please contact your dealer or Lathem Time directly. 5
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DIP SWITCH SETTINGS To access the dip switches, remove the two screws holding the left side panel in place and remove the panel. Dip Switches 1, 2, and 3 are monitored at all times and changes take effect immediately. Dip Switch 4 is read only at power up. To change the setting for this switch, the unit must be powered completely off and back on. Dip Switch 2 is also used to reset the security code. Any change in its setting will allow you to view and change the security code
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PROGRAMMING A SECURITY CODE Upon power up you are allowed to enter a security code to restrict access to programming functions. When the unit displays “SECURITY CODE”, press from one to four Day of the Week keys. This is your security code. The ERASE EVENT key can be used to clear the code for re-entry. Press the RUN key to advance the programming when you are satisfied with the security code. The unit will prompt “UNSECURED MANUAL FWD TO CHANGE.” If this selection is chosen, only
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UNLOCKING THE KEYPAD To unlock the keypad, press the Day of the Week keys you programmed for the security code followed by RUN. The security keys must be pressed in the exact order as they were originally entered. The display should read “SELECT FUNCTION.” To relock the keypad, simply press RUN. The keypad must be unlocked, or no security programmed, to access programming functions. Remote operation of Start Lunch or Start Break switches do not depend on the status of the keypad or
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PROGRAMMING EVENTS (On/Off Controller) NOTE: Dip Switch 4 must be set to OFF (see page 8) With “SELECT FUNCTION” displayed, press the PRGM EVENTS key. The display should read “CONTROL 12:00 AM.” Use the FAST FWD and SLOW FWD keys to advance the displayed time to the desired event time. Once the event time is reached, press the day of the week keys (Sun, Mon, Tue, etc.) to indicate on which day(s) the control should operate. Pressing a key once will display the day of the week and p
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PROGRAMMING EVENTS (Bell Ringer) NOTE: Dip Switch 4 must be set to ON (see page 8) With “SELECT FUNCTION” displayed, press the PRGM EVENTS key. The display should read “SIGNAL 12:00 AM” “ON DAYS:” Use the FAST FWD and SLOW FWD keys to advance the displayed time to the desired event time. Once the event time is reached, press the day of the week keys (Sun, Mon, Tue, etc.) to indicate on which day(s) the bells should ring. Pressing a key once will display the day of the week and pr
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MANUAL LUNCH AND BREAKS (Bell Ringer) This function provides a means of programming set lunch and break lengths which can be initiated at various times during the day. It is only available when the unit is used as a Bell Ringer and operating on AC power. Pressing the START LUNCH or START BREAK key at the keypad (or a remote momentary switch connected to the unit) causes the bells to signal and a displayed timer to begin counting down the programmed lunch or break time. When the time
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SIGNAL ON/OFF Pressing the SIGNAL ON/OFF key when the keypad is unlocked changes the On/Off status of the programmed schedule. When the status is ON, bells or controls will operate based on the schedule. When the status is OFF, the schedule is ignored and only the manual key will operate the bells or controls. The current On/Off status of controls will remain active until MANUAL is pressed or the schedule reactivated. Press RUN to return to the normal display. When the schedule is i
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RS485 The DWA-S comes equipped with an RS485 receiver which can be used to synchronize the time and date of the unit with other equipment. The option supplies three leads on the power supply board for connecting to the sending device. The interconnection cable between devices should be a minimum of 3 meters long to prevent interference to radio communications as required by FCC regulations. Cables less then 3 meters in length require a Fair-Rite bead (Lathem Part # VII0058) installed
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FIGURE 2: CONNECTION FOR DWA-S TO LTR-0 FIGURE 3: CONNECTION FOR DWA-S TO LTR-GPS Page 16
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FIGURE 4: CONNECTING RC-MS TO SYNCH DWA-S OR LTR-0 NOTE: A 9vDC Power Adapter (not shown) is also required for the RC-MS. FIGURE 5: OMC – DWA-S INTERCONNECTION Page 17
