Elevator Forum

the ring car board is the first board on the left its your OCSS on a simplex/duplex MRQ. did that fix the call button also?

did you check to see if you had a leaking SCR? i have seen them leak voltage when the SCR is off which causes the drive to freak out. if you have more...

off the top of my head, the drive gets a few 30v feeds from a couple of rs3 boards and if the drive has a problem the input to the RS board goes low a...

not sure what a qrs is but on otis serial link equipment card reader operation or secure access(button code) will flash the light on the button for a ...

some batteries have good voltage but wont pass enough current. have any of the battery monitors tripped? how old are the batteries? word of advice don...

otis still has some parts available. so do most other elevator parts houses. the parts not available can be made by otis but its much cheaper and safe...

the pulse unit measures the resistance of each lay in the belt. after a learn procedure for the belt length the unit monitors for excessive wear by re...

its headed to 22nd century until it melts down and catches fire or hurts someone and they sue. just because its old doesn't mean it can run forever. y...

is short clutch not retracting before the door mechanically stops?

fo all these things that are in the hoistway, you think they would be more water proof. i didnt see a blown stator. did the car run?

if you have a car take hwy 1 up the coast towards point reyes and bodega bay. on the way there is an awesome zip line course in the redwoods. after th...

just dont plug a SSD-1 into an EC controller. looks the same, has the same plug, fits in the same hole. but when you turn the power on, you def let th...

you disconnect both field wires to the gate switch. the box has a battery to power the light and buzzer. this situation a buss duct and switchgear mel...

its a otis tool that we hook up to the gate field wires. it has a buzzer and a light to tell you the gate is open. we have one on every high rise job ...

prob a bad encoder in the ppt. the ram chip knew knew where it was. good to know its fixed. def an odd problem. I have seen that on a 411 SPPT, never ...