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Lathem Sonachron DWA-S, User Manual, Page: 3 / 28

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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 Controller) ....... 11 

PROGRAMMING EVENTS (Bell Ringer)................. 12 

PROGRAMMING SIGNAL LENGTH (Bell Ringer) .. 12 

MANUAL LUNCH AND BREAKS (Bell Ringer) ....... 13 

SIGNAL ON/OFF..................................................... 14 

MANUAL OPERATION............................................ 14 

STANDBY POWER ................................................. 14 

RS485 SYNCH ........................................................ 15 

WIRING DIAGRAMS ............................................... 15 

WARRANTY ............................................................ 24 

 

Summary of Contents for Sonachron DWA-S

Page 1: ...Sonachron DWA S User s Manual ...

Page 2: ...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 ...

Page 3: ...ITY CODE 9 UNLOCKING THE KEYPAD 10 SETTING TIME AND DATE 10 PROGRAMMING EVENTS On Off Controller 11 PROGRAMMING EVENTS Bell Ringer 12 PROGRAMMING SIGNAL LENGTH Bell Ringer 12 MANUAL LUNCH AND BREAKS Bell Ringer 13 SIGNAL ON OFF 14 MANUAL OPERATION 14 STANDBY POWER 14 RS485 SYNCH 15 WIRING DIAGRAMS 15 WARRANTY 24 ...

Page 4: ...g Weight 7 lb Dimensions 9 x 3 x 5 3 8 WARNING This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause interference to radio communications It has been tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules which are designed to provide rea...

Page 5: ...gramming prompts and indication of operation on standby power A 24 button keypad is used for setting time programming events manual operation of bells or controls initiating lunch or break bells and on off control of the schedule Access to programming functions and manual keys MANUAL START LUNCH and START BREAK is controlled by a user defined security code The time keeping ability of the DWA S is ...

Page 6: ...ont 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 7 Remove plastic bushing from back of unit before mounting on the wall 8 Drill marked holes and install wall anchors in wall if necessary not provided Mark Holes ...

Page 7: ...TANT 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 22 for other options 1 There are three options for routing wires into the DWA S top back or bottom Select on of these and remove the plug 2 Remove cover from terminal strip ...

Page 8: ...ire to Line Neutral and black AC Hot wire to Line Hot 4 For 115VAC bells or horns connect a jumper wire between Line Hot and CKT 1A Connect the bell wires to AC Neutral and CKT 1B 5 For 24VAC bells or horns connect a jumper wire between AC Hot and CKT 1A Connect the transformer 115VAC primary wires to AC Neutral and CKT 1B Connect the transformer 24VAC secondary wires to the 24 V bells or horns NO...

Page 9: ...de 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 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 POWER TO THE UNIT Reconnect Cable CPU Board Red Battery Wire ...

Page 10: ...ng 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 Set the time and date and program the unit as described in the following pages SECURITY CODE ...

Page 11: ...it 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 The unit is shipped from the factory with all dip switches in the ON position The chart below shows the dip switch settings Dip Switch Description ON OFF 1 Time Keeping Frequency 60 Hz 50 Hz 2 Time Format Security Code Acce...

Page 12: ... MANUAL START LUNCH and START BREAKS keys The remote START LUNCH and START BREAK switches do not require the security code to activate Lunch or Break schedules After choosing the level of security desired press the RUN key to advance to the normal display If unlimited access to all functions is desired no security press the RUN key without pressing any Day of the Week keys when the unit prompts fo...

Page 13: ...splay with the keypad secured The PRGM LUNCH PRGM BREAK SIGNAL LENGTH and PRGM REVIEW keys may be pressed while the keypad is locked to view the current settings of their respective functions SETTING TIME AND DATE Follow procedure above to unlock keypad The display should read SELECT FUNCTION To set the time simply press the SET TIME key and use the FAST FWD and SLOW FWD keys to advance to the cor...

Page 14: ...he time to the next event and enter the day s and On Off status Continue in this fashion until all controls are programmed Press RUN to lock the keypad and return to the normal display While in the Program Events function the PRGM REVIEW and ERASE EVENT keys can be used to scan and erase events respectively To scan programmed events simply press the PRGM REVIEW key The next event in memory will be...

Page 15: ...o scan and erase events respectively To scan programmed events simply press the PRGM REVIEW key The next event in memory will be located and displayed Pressing the key repeatedly will scan through all events sequentially To erase an event locate the event and press the ERASE EVENT key PRGM REVIEW may also be used when the keypad is locked Pressing the key will display the next scheduled event Pres...

Page 16: ...nlock the keypad then press the PRGM LUNCH key Use the forward keys to program the desired lunch length 00 to 99 minutes Press the PRGM LUNCH key a second time to display the length of time 0 to 9 minutes a warning bell will ring before the ending bell rings The default is 0 Use the forward keys to change this value Press the RUN key to return to the normal display Program breaks in the same metho...

Page 17: ... while lunch or break is counting down will operate the bells and cause the remaining lunch or break time to be canceled Pressing the MANUAL key when the unit is operating as on On Off Controller will toggle the current On Off status of the controls The MANUAL key will not ring bells if the unit is operating on standby power STANDBY POWER During AC power failures the DWA S switches to a quartz cry...

Page 18: ...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 around the cable The figure below indicates the signal names and corresponding wire colors Signal Wire Color Receive White Receive Yellow Signal Ground Black NOTE Preferred cable is CAT 3 or CAT 5 twisted pair up to 4 ...

Page 19: ...Page 16 FIGURE 2 CONNECTION FOR DWA S TO LTR 0 FIGURE 3 CONNECTION FOR DWA S TO LTR GPS ...

Page 20: ...Page 17 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 21: ...tion with the DWA S When installed the DWA S will synchronize with the time and date from the Omni ChronII each minute When installing multiple DWA S units all units EXCEPT the one at the end of the RS485 line require jumper E2 be cut When E2 is installed a 100 ohm terminating resistor is internally connected across the RS485 line to reduce the signal reflection and thereby improve reception E2 lo...

Page 22: ...Page 19 ...

Page 23: ...Page 20 FIGURE 6 115 220 VAC BELL WIRING FIGURE 7 LOW VOLTAGE AC BELL WIRING ...

Page 24: ...Page 21 FIGURE 8 LOW VOLTAGE DC BELL WIRING FIGURE 9 115 220 VAC CONTROL WIRING ...

Page 25: ...Page 22 FIGURE 10 LOW VOLTAGE AC CONTROL WIRING FIGURE 11 LOW VOLTAGE DC CONTROL WIRING ...

Page 26: ...Page 23 FIGURE 12 DRY CONTACT WIRING FOR PAGING SYSTEM OR TONE GENERATOR ...

Page 27: ... carton or equivalent fully insured with shipping charges prepaid Lathem will not assume any responsibility for any loss or damage incurred in shipping 6 WARRANTY DISCLAIMER AND LIMITATION OF LIABILITY Except only the limited express warranty set forth above the products are sold with no expressed or implied warranties of any kind and the implied warranties of merchantability and fitness for a par...

Page 28: ...OMSC 0708 ...

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