Digi 42/2 Two Circuit Electronic 24 Hour or 7 Day Time Switch Installation To the installer: 1. Read operating instructions carefully. 2. Check the input and output ratings marked on the unit to make sure this product is suitable for your power supply and application. 3. Disconnect power supply prior to installation to prevent electrical shock. 4. Wire in accordance with National and Local electrical code requirements. The Digi 42 time switch can be surface, flush or rail mounted and is also available with an enclosure for stand-alone applica- tions (GMX2). MOUNTING Lift off front cover and loosen the two screws on opposite corners. Pull off plug-in base with a left-to-right rolling motion. SURFACE MOUNTING (inside panel) Operating Instructions Place screws through holes in base and screw to back of APPLICATION panel or wall. Connect wires to wiring terminals. Time based control of lighting, ventilating, heating, Place terminal cover over terminal block and, by lining up the cooling or other electrical loads in commercial and two screws with corner holes in base, push timer firmly onto industrial applications. The Digi 42 time switches are plug-in base. Tighten the two screws. A base for DIN rail mount- programmable for 24-hour or 7-day schedules as well ing is also available as an option. Order Part No. MB-DIN. as a “8th day” or holiday schedule. PANEL MOUNTING (flush mounting through panel door) TECHNICAL DATA Cut a square hole 2-5/8” x 2-5/8” (66 x 66mm) in the front Output–2 SPDT relays with dry contacts of the panel. Remove plug-in base and insert the time switch Switch Rating: 16A/250VAC general purpose through the opening. Place the flush mounting bracket over 1000 watt tungsten @ 240V rear of the unit to secure to the panel door. 500 watt @ 120V For stand-alone installations, the unit may be surface 1/2 hp @ 120VAC, 1 hp @ 240VAC mounted inside an E100 indoor or E200 outdoor enclosure 720VA pilot duty which is available from Grasslin Controls Corporation or your 2 week battery back-up wholesaler. Supply voltages: Separate Models – 24VAC/DC, WIRING 120VAC, 208/240VAC, all 50/60Hz (refer to prod- 1. Wire power to input terminals 1 and 2 (make sure to apply uct label) correct voltage; use of incorrect voltage will void warranty). Shortest switch time–1 minute 2. Wire power to circuit 1 and 2 common terminals. Wire NO Ambient Temperature Range –20°F to 140°F (closed during ON times) or NC (open during ON times) to (–28°C to 60°C) the load. AM/PM LCD display or 24:00 hr. military display Input Power: 4VA Screw terminal connections for up to #12AWG wire Accuracy ± 4 minutes per year Daylight time changeover: manual or automatic COM COM NOTE: When first applying power, it may take several Circuit 1 Circuit 2 minutes for the battery to take a charge. If the LCD display does not come on after a few minutes, press reset. n KEYPAD DESCRIPTION n SETTING THE TIME Setting the Time/Automatic Run Mode NOTE: If the h and m keys are held down longer than 2 seconds, the numbers will advance rapidly. Prog. Program Mode Press and hold the key during the following: Res.* Reset: Clears all programs and time (If Daylight Savings Time is in effect, press ±1h first) Select ON or OFF in Prog. Mode, Manual Override in Run Mode 1. Press h to advance to the current hour ±1h* Manual Daylight Time Change (while holding down the key) h Setting the Hour (12:– – AM) 2. Press m to advance to the current minute m Setting the Minute (12:01 AM) (while holding down the key) Day Set Current Day and Select Days to be Omitted 3. Press Day repeatedly to advance to current day (while holding Sel. Omit Day Selected w/Day key down the key) Holiday Program NOTE: If the days are flashing, it indicates the day of the week was *Recessed keys; use a pen point to press not set when setting the time. The timer cannot be programmed unless the day of the week is entered. n LCD DISPLAY ELEMENTS n MANUAL DAYLIGHT TIME CHANGEOVER Days of the Week � Holiday Indicator Each year, in the Spring, press ±1h to advance the time an hour. In the Fall, press ±1h to set back an hour. Daylight Time Symbol � Time of Day or AM and PM Symbol � Switching Time n SETTING AUTOMATIC DAYLIGHT TIME CHANGEOVER (OPTIONAL) Channel Indication � NOTE: It is only necessary to program the changeover dates once. The timer will then automatically change the time at 2:00AM on the first Run Mode Symbol Manual Override ON Sunday in April and the last Sunday in October until the year 2079. ON/OFF Symbol 1. Press and hold the ±1h key OFF Symbol Continuous OFF Symbol and press the Day key once. If in AM/PM mode, “12:31” (Dec. ON Symbol Continuous ON Symbol 31) will be flashing. If in military time mode, “31:12” will be n PROGRAMS flashing. The Digi 42/2 will accept up to 42 programs 2. Enter the current (today’s) date. A program consists of: Example: June 15, 1997. 1. An ON or OFF command Press m key (for date) to 15 2. Time of day (Hour and Minute) first and then press h key (for month) to 06 (If in military time, h 3. Single day or multiple days is date and m is month) A program is required for each ON event, and a program is 3. Press ±1h once, a 2 under Tu and 1995 appears in display required for each OFF event. NOTE: MULTIPLE ON OR OFF EVENTS MAY BE PROGRAMMED. 4. Enter the current year. Example: 1997. Press m key twice to For example, Program 1 may turn the office air conditioning ON at 8AM 1997 (If you overshoot, hold down the m key – the years will Mon.-Fri. Program 2 may turn the air conditioning OFF at 5PM Mon.-Fri. scroll to 2079 and back to 1995) If someone is working late, they may press the override key to turn on 5. Press ±1h once, a 3 under We and AU appears in display, the air conditioning. If they forget to press the override key again when they leave, the air conditioning will stay on all night (or all weekend). which indicates preset European dates. To prevent this from occurring, additional OFF times may be pro- 6. Press m key once so display shows cHA (If m key is inadver- grammed. tently pressed twice and HA shows in display, press m key two • Program 3 can turn the air conditioning OFF at 6PM. more times until cHA shows) • Program 4 can turn the air conditioning OFF at 7PM. • Program 5 can turn the air conditioning OFF at 8PM., etc. 7. Press ±1h once, a 4 under Fr and 03:30 (for 1997) appears in display, which indicates March 30 (30:03 in military) IMPORTANT: BEFORE PROCEEDING WITH SETTING THE 8. Enter the date for spring time change. Example: April 6, 1997. TIME AND PROGRAMMING THE UNIT, PRESS THE RESET Press h key (for month) to 04. Press m key (for date) to 06 (If !KEY TO CLEAR ALL DATA FROM THE MEMORY. in military time, h is date and m is month) n SELECTING AM/PM OR MILITARY TIME 9. Press ±1h once, a 5 under Sa and the fall time change date appears in display. Example: 10:26 for 1997 After pressing reset, the display may show AM (right). The num- bered day symbols will be flashing on 10. Press key to enter Run Mode and off. If the display does not show AM, it is Daylight Time Changeover Dates in military time mode (24:00 hr.) To change to AM/PM mode, press and hold 1997 April 6 - October 26 2002 April 7 - October 27 the h key and press the ±1h key once. 1998 April 5 - October 25 2003 April 6 - October 26 AM will appear in display. 1999 April 4 - October 31 2004 April 4 - October 31 If display is in AM mode and military 2000 April 2 - October 29 2005 April 3 - October 30 mode is desired, press and hold the h 2001 April 1 - October 28 2006 April 2 - October 29 key, press the ±1h key once. � � � � � n PROGRAMMING 24 HOUR OR 7 DAY SCHEDULES n CHANNELS In each program, CH1 and/or CH2 can be a OFF or ON event. Also, It is helpful to write out the program schedules one channel can be an OFF event and the other an ON event in the before beginning. See last page. same program. With both channels programmed to the same ON/OFF schedule, the timer becomes a DPDT time switch. IMPORTANT: THE CURRENT TIME OF DAY AND DAY OF Example: CH1 ON, CH2 OFF at 8AM Every Day. WEEK MUST BE SET PRIOR TO PROGRAMMING. SEE “SET- !TING THE TIME” Press Prog. key once NOTE: The Day and Sel. keys are used to omit days of the week for Press key once CH1 ON symbol appears which the OFF or ON time is not to be implemented. For 24 hour sched- Press key twice CH2 OFF symbol appears ules (same program every day fo the week), ignore Day and Sel. keys. Press h key to 08AM If an ON or OFF symbol is not entered, the ON symbol will flash, and program will not be accepted. Press m key to 00 Example Press Prog. key to enter additional programs Program 1: CH1 ON at 7:00AM Monday thru Friday nMANUAL OVERRIDE Program 2: CH1 OFF at 6:00PM Monday and Friday only Program 3: CH1 OFF at 5:00PM Tuesday, Wednesday and Thursday TEMPORARY: While in the Run Mode, pressing the or Three programs need to be entered. key once will reverse the output; ON to OFF or OFF to ON. The Press Prog. key only once. Display shows: or symbol appears in the display to indicate a temporary over- ride. At the next scheduled switching time, automatic control resumes, eliminating the override. CONTINUOUS: While in the Run Mode... • Pressing the or key twice will turn the output to ON permanently. symbol appears in display. or • Pressing the key three times will turn the output OFF permanently. symbol appears in display. or • To terminate a continuous override, press the key Program 1 (CH1 ON at 7:00AM Monday thru Friday) until appears in the display. Press key once CH1 ON symbol appears Press h key to 07AM n REVIEWING PROGRAMS Press m key once to 00 To review the programs at any time, press Prog. key. Programs will Press Day key 6 times flashing line appears under 6 appear in the order they were entered with repeated presses of the Press Sel. key once to omit 6 in display flashes Prog. key. After all programs have been reviewed, the blank display Press Day key once flashing line appears under 7 will appear to allow entering another program. Another press of the Press Sel. key once to omit 7 in display flashes Prog. key will display the number of free programs available, such as Fr 38 if 4 programs have been entered. Press Prog. key to enter Program 2 (CH1 OFF at 6:00PM Monday and Friday) n CHANGING A PROGRAM Press key twice CH1 OFF symbol appears Select the program to be changed with the Prog. key. New days Press h key to 06PM may be omitted or omitted days may be returned by using the Day Press m key once to 00 and Sel. keys just as in initial programming. Hour and minute can be Press Day key twice flashing line appears under 2 changed with the h and m keys. Press Sel. key once to omit 2 in display flashes Press Prog. or key to store the new program. Press Day key once flashing line appears under 3 n DELETING A PROGRAM Press Sel. key once to omit 3 in display flashes Repeat Day and Sel. keys for days 4, 6, and 7 To delete only one or a few programs: Press Prog. key until the desired program is displayed. Press Prog. key to enter Press m key to :59 and press once more to blank out. Program 3 (CH1 OFF at 5:00PM Tuesday, Wednesday and Thursday) Press h key to 11PM and press once more to blank out. Press key twice CH1 OFF symbol appears Press key, display will flash for several seconds and then enter the Run Mode. Press h key to 05PM Using the reset key will delete ALL programs, the time of day, and Press m key once to 00 daylight change dates. Press Day key once flashing line appears under 1 Press Sel. key once to omit 1 in display flashes Press Day key 4 times flashing line appears under 5 Press Sel. key once to omit 5 in display flashes Repeat Day and Sel. keys for days 6 and 7 Press Prog. key to enter Press key to enter Run Mode IMPORTANT: IF AN “ON” TIME WAS PROGRAMMED THAT IS EARLI- ER IN THE DAY THAN THE CURRENT TIME, PRESS AND/OR ! ONCE TO TURN THE TIMER “ON”. (IT DOES NOT “LOOK BACK” TO DETERMINE IF IT SHOULD BE ON OR OFF AFTER PROGRAMMING) NOTE: If Sel. key is held down, it will scroll rapidly to 99 and back n HOLIDAY PROGRAM to 01 An “8th day”, or Holiday program schedule may be entered for use To review the implementation scheduled, press key once. on holidays or vacation periods. More than one ON or OFF time may be Display shows day of implementation and number of days holiday pro- entered for the Holiday program. A typical Holiday schedule may be to turn OFF at 12:01AM dur- gram will be active. Press key. ing the holiday period. To delete the implementation scheduled, press key twice. 1. Press Prog. key to first free program symbol disappears from display. On the day the Holiday Program is selected to begin, the 8th day 2. Press key twice; OFF symbol appears program will be implemented. The display will show the Holiday symbol 3. Press h key once to 12AM and number of days remaining in the holiday period. To cancel at this 4. Press m key twice to 01 point, press once. 5. Press key once n TROUBLESHOOTING PROBLEM: Days are flashing, pressing any key does nothing except key turns output ON and OFF. SOLUTION: Time of Day and Day of Week have not been set. See “SETTING THE TIME” NOTE: This is the condition after a reset. If the timer is found in this condition after it has been installed, programmed and operating for a Enter additional ON or OFF schedules as above, followed by while, it may indicate that electrical noise or voltage transients have dis- the key. rupted the microprocessor causing a loss of program information. Call 1- 6. Press key to enter Run Mode 800-272-1115 and request that a no-charge “Snubber Filter” be sent to you to place across the input to the timer, which may solve the problem. n IMPLEMENTING HOLIDAY PROGRAM Up to 6 days in advance of the Holiday, the “8th day” or Holiday A second, but very unlikely cause of loss of program is a power fail- schedule may be selected to begin on a certain day of the week, and ure with the backup battery low or dead. Check by disconnecting power continue from 1 to 99 days. and monitoring how long the battery keeps the time of day in the display. Example: Thursday and Friday will be Holidays 1. Press key once PROBLEM: Time of day was set while holding the key down, but days are still flashing. 2. Press Day key to 4 (Th) SOLUTION: Current day of week was not set while holding down the key. See “SETTING THE TIME” PROBLEM: It is 10AM and a ON program for 8AM was entered, but the output is not ON. Display shows the and symbols. SOLUTION: After programming, the timer does not “look back” to 3. Press Sel. key twice to 02 determine if it should be ON. Press the key (temporary override) to turn the output ON; appears in display. The timer will assume automatic operation at the next programmed event. Number of Days PROBLEM: A program for 8AM Monday thru Friday was entered, is flashing. but it will not accept it and CH1 4. Press key to enter Run Mode SOLUTION: The ON or OFF was not entered as part of the Display will show symbol above current time program. ON or OFF must be selected. 8th day schedule will be implemented on Thursday and run for 2 days and then timer will revert back to normal programs. Digi 42/2 Program Schedules CH1 CH2 Holiday Prog ON/OFF ON/OFF h m Day(s) Program _____________________________________________________________________________________________________________________________________________________________________________ 1 On 7 am 30 Mon., Tue., Wed., Thurs, Fri. No _____________________________________________________________________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________________________________________________________________ GRÄSSLIN GmbH & Co. KG is ISO 9001 Certified GRASSLIN CONTROLS CORPORATION 31 Industrial Ave. • Mahwah, New Jersey 07430 • Tel.: 201-825-9696 • Fax: 201-825-8694 E-mail: GCCsales@grasslin.com • www.grasslin.com Printed in USA 082US 010.97