therealbjthedj
HEY
JUST A LITTLE FYI TO LET YOU KNOW ABOUT A TECHNICAL GLITCH I FOUND OUT TODAY REGARDING DRAPER MOTERIZED SCREENS,
AT FIRST I ATTEMPTED TO HOOK UP ALL SCREENS TO 1 SWITCH (A TRINITY PACK - CHANNEL 1 UP CHANNEL 2 DOWN NON DIMMABLE ) THE PAC WAS BEING USED TO CONTROL THE SCREENS, ALL REDS TIED TOGETHER, ALL BLACKS TIED TOGETHER ALL WHITES TIED TOGETHER
2 - 10', 2 - 12', 2 - 15' SCREENS
WHEN THE SCREENS WENT DOWN THE FIRST TO STOP (OR SHOULD HAVE STOPPED) WAS THE 10' THEN THE 12' THE THE 15', WHAT ACTUALY HAPPENED WAS THE 10' STARTED OVER EXTENDING AND QUICKLY GOING UP AND DOWN (LIKE A KID WITH A LIGHTSWITCH) THEN THE 12' THE PROBLEM WOULD STOP WHEN THE 15' EXTENDED TO AL THE WAY DOWN,
AT FIRST I THOUGHT THE LIMIT SWITCHES WERE FUKKED SO I SPENT TIME ADJUSTING THEM, NO SUCH LUCK, SO I CUNSULTED THE DRAPER WEBSITE ( THERE ARE NO DIAGRAMS THAT TELL YOU HOW TO FIX THIS, NOR HOW TO WIRE THIS) I MADE SEVERAL PHONECALLS TRYING TO FIX THIS PROBLEM AND MANAGED TO GET A TECH AT DRAPER THAT HAD SEEN THIS PROBLEM AND APPERENTLY YOU CAN NOT WIRE THESE SCREENS IN PARALLEL.
HOW DO YOU FIX THIS
I USED GL-7 10amp RELAYS
PLACE A 120v RELAY IN THE LINE AFTER THE TRINITY PACK BUT BEFORE THE SCREEN, (6 SCREENS = 12 RELAYS) KEEP CONTROL POWER THE SAME,
STEP 1 - TIE ALL THE NEUTRALS TOGETHER THEN TO ONE SIDE OF THE CONTROL OF THE RELAYS
STEP 2 - RUN THE HOTS TO ONE SIDE OF THE CONTROL ON THE RELAY THEN TO THE SWITCHED SIDE OF THE RELAY (SO THAT THE SUPPLY POWER ACTIVATES THE RELAY AND SUPPLIES POWER TO THE SCREEN)
YOU MUST DO THIS FOR UP AND AND DOWN
WHAT YOU ARE DOING IS ELIMINATING CROSSTALK BETWEEN THE LIMIT SWITCHES
IT IS ALSO IMPORTANT TO NOT TURN UP AND DOWN ON AT THE SAME TIME (IF YOU DO THIS YOU WILL RELEASE THE MAGIC BLUE SMOKE THAT MAKES THESE UNITS WORK)
I HOPE THIS HELPS SOMEONE OUT THERE SAVE SOME TIME CUZZ THIS PROBLEM TOOK ME ABOUT 3 HOURS TO FIGGER OUT AND 5 HOURS TO FIX,
IF YOUR SCREWWED E-MAIL ME therealbjthedj@hotmail.com
Inviato Fri 13 Apr 07 @ 2:31 am