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The timer will have terminals associated with it. They may be on a relay socket that the relay plugs into. There will be two terminals used to bring the supply voltage to the relay timer. The load will be connected in series to either an open or closed set of contacts on the relay. The load voltage is controlled by the timer relay.
The operation is, when the timer relay coil is energized the timing circuit in the relay is energized. This starts counting down until the time set point is reached and then the contacts either open or close depending on what set of contacts that you connected the load to.
Some timer relays need to have the timer coil circuit de energized to reset the timing relay, others use a separate input voltage terminal on the relay to reset it without having to de energize the whole relay.
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What are the two types of delays in any digital system?
its propogation delay and wire delay..
How do you wire an outdoor timer into a GFCI outlet?
I assume you are hard wiring it and not plugging it in. The power coming into the GFCI outlet connects to the line side of the GFCI outlet. If you want the outdoor timer protected by the GFCI then connect the wire going to the timer to the load side of the outlet. If you do not want the timer protected then connect it to the line side. On the back of the GFCI if you look closely you will see Line & Load marked on the back.
What would happened if you wired a 240v ballast and a 120 v ballast into a heavy duty timer?
The timer has to be multi-pole. The ballast must be connected to the load contacts of the timer. If the timer is a 120 Volt timer, the timer has to run on a 120V. circuit. Loads are loads, and as long as you have a multi-load timer you can hook up whatever you want. If the timer only works on a shared power source (load shares the timer supply) you will need to use a contactor on the load side or the timer.
How many pins does an LM555 timer have?
8-pin 555 timer IC
What does a 556 timer chip do?
A: this chip is defined as a timer but it can be used for other reasons and applications.
What is the difference between on delay timer and off delay timer?
The difference is that one is on and the other is off.
Draw the symbol for On delay times contacts and Off delay timer contacts and explain how each operates?
symbol of on delay timer
Why is a timer is used in an electrical circuit?
Timer relays are used in control circuitry. There are two main types, an (off delay) and an (on delay). If you want one device to turn off before the timer controlled device then you would use an off delay timer. If you want one device to turn on before the timer controlled device then you would use an on delay timer. When the timer is energized this starts the timer circuit in the relay to time out.
Why timer can be used in star delta starter?
delay timer
What is a digital delay box used for?
delay box is a term in drag racing to describe an on board timer which is a transmission brake delay timer which forces the race car to remain stationary at the starting line.
What is ON delay and OFF delay timer?
with an ON delay timer once the power has been appied to the timer unit, the timer contacts will change state-open/close after a preset time (for example A&B timers are adjustable anywhere from 0.05 seconds to 300 Hours) with a OFF delay these contacts change state after the power to the unit has been removed then the preset time will time out (this count dosen't start until the power is removed
Does this breadmaker have a delay timer so you can set it the night before?
The breadmaker has a 13 hour delay timer so you can set the machine the night before and have fresh bread in the morning.
How does an off delay timer work?
when off delay timer gets control signal, its NO(NORMALLY OPEN) contact become NC(NORMALLY CLOSED) for preset duration, and then become NO.
Hoover washing machine - NextraOptima what does a red flashing light on start-delay start mean Is it pump gone?
A red flashing light on the Hoover Nextra Optima washing machine when the start delay timer is set might mean that the timer itself is not operational. Run the washer on the regular cycle, and if it works fine, it is the delay timer.
What is the timer count needed to create a time delay of 100 ms if the timer clock frequency is 1MHz?
100ms=.1 1Mhz=1000000 .100x1000000=100K timer count
What is timer in vb 6.0?
A timer basically does an action every x milliseconds, this could be used to create a stopwatch function. You can set the delay time in the properties box for the object, bear in mind that you put the delay in milliseconds.
How do you wire a timer switch to a 3 way light switch?
First you need to decide what you are trying to accomplish. You can wire the Timer switch in series with or parallel to the 3-way switches. If in series then the 3-way switch function would depend on the timer state. If the Timer switch was ON then the 3-way switch could turn the connected device ON or OFF from either location. If the Timer switch were OFF the device would be OFF no matter what you did with 3-way switches. To wire in this fashion put the timer between the supply and the input to the switches. If the Timer is in parallel then if the Timer is ON it doesn't matter what you do with the 3-way switch, the device will be ON as long as the Timer is ON. If the Timer is OFF then the 3-way switches will work in their normal fashion. To wire in parallel connect the supply to one side of the Timer and the device to the other.
