I don't quite have the time to do the design, but a good place to start is here:
ABB SSAC Timers & Controls Fast Facts (800) 377-SSAC(7722)
SSAC makes a nice selection of timer modules although I'd look at the problem another way:
1. In both cases, it's on for 5 minutes, thus in both positions one timer runs for 5 minutes. Thus a delay on make timer would work here.
2. In one position the output is steady and in the other case it runs in an interval mode. This in one of the cases it, just shorts the output of the interval timer.
Part of the design is what voltage to use. 24 vac, 24 VDC, 120 VAC etc.
What switch to use. You could use a heavy duty toggle like a 3PDT switch.
Sager Electronics - Electronic Component Distributor should have one. Bought them there for a hoist.
You can also get 4pdt sun-mineature switches. They are not the most robust in the world, but they work.
You also need to decide whether you want the switches to be used in a momentary mode or on/off mode. (ON)-OFF-(ON) may allow the ability to turn things off easily. The () means momentary.
Another switch option is to use industrial type switches that are used in control panels. They mount in a standard hole and are very robust. They get long when you try to add contact blocks.
Usually they might be called 1 NC/1NO contact block. The blocks themselves don't have a common connection like a switch.
So initially, I see a 3pdt momentary switch. One pole provides power in either position.
Another pole just shorts the interval timer output in one position.
The other pole provides the signal for the Delay-on-Make for the timer. Sometimes they need to be separate.
This is just off the top of my head.
The 555 timer was/is a popular timer, but I never liked it. It's problematic with starting a timing interval on power up.
Something like the "Smart relay" from Idec would be an application of what you want.
Idec Programmable Smart Relay Search Results idec Programmable Smart Relay - Davis Instruments Catalog Problem is, you need a development system and it might not be feasible for one.
Making a timer from a PIC IC adds another dimension, but could be workable. PICs are tiny microprocessors programmable in BASIC. They are made my
Microchip Technology Inc. is a Leading Provider of Microcontroller and Analog Semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.
This company
Comfile Technology Inc. has intriqed me as well. Seems like a relatively simple and more integrated than a PIC.
So, you have lots of options with lots of "learning curves" from traditional timing modules and wiring to mini PLC's (Pogrammable Logic Controller) with a display of sorts to something that could be "real cheap" if you needed 100K of them.
I don't recommend the 555 approach. The Cubloc approach is probably the most cost-effective if you have a little time to spend. The smart-relay could do it in a hurry.
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