Summary of Sonachron DWA-S
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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..
Page 3: Table Of Contents
Table of contents specifications..................................................... 1 introduction ....................................................... 2 quick start steps.............................................. 3 dip switch settings........................................... 8 programmin...
Page 4: Specifications
Page 1 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 dayli...
Page 5: Introduction
Page 2 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 th...
Page 6: Quick Start Steps
Page 3 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 le...
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Page 4 9. Secure unit to wall using screws (not provided). 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 cha...
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Page 5 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 ...
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Page 6 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 ...
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Page 7 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. 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 curr...
Page 11: Dip Switch Settings
Page 8 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 switc...
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Page 9 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 fo...
Page 13: Unlocking The Keypad
Page 10 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 ...
Page 14: Programming Events
Page 11 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 ...
Page 15: Programming Events
Page 12 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. Onc...
Page 16: Manual Lunch And Breaks
Page 13 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 bre...
Page 17: Signal On/off
Page 14 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...
Page 18: Rs485
Page 15 master clock - 1 2 3 4 5 10 11 12 13 6 7 8 9 txd rxd d + d g n d g n d s y n c d + d - d + d - ~ ~ rs-232 rs-485 sync out sync in 12v~ ac out 250ma modem host communications ltr8-512 & ltr8-512m only pulse sync rs-485 data sync + - rs-485 dsd rs-485 dsd + - rs-485 dsd + - rs-485 dsd + - rs-4...
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Page 16 figure 2: connection for dwa-s to ltr-0 figure 3: connection for dwa-s to ltr-gps.
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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.
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Page 18 sonachron (dwa-s) can be synchronized to lathem’s ltrx-512 master, ltr-0 master, ltr-gps receiver, rc-ms master or omni:chronii time clock reference devices. Distance from the source can be extended using lathem’s swift485+ repeater. Omni:chronii time recorder can be equipped with an optiona...
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Page 20 figure 6: 115/220 vac bell wiring figure 7: low voltage ac bell wiring.
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Page 21 figure 8: low voltage dc bell wiring figure 9: 115/220 vac control wiring.
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Page 22 figure 10: low voltage ac control wiring figure 11: low voltage dc control wiring.
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Page 23 figure 12: dry contact wiring for paging system or tone generator.
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Page 24 limited one-year limited warranty lathem warrants the hardware products described 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 reseller. The conditions of this warranty and the exten...
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Omsc-0708.