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Old 04-01-2008, 08:40 PM   #1
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Default Anyone know anything about solid state timers?

So for some reason, I can hear the coil click after the time is up to open and close circuits, but I'm not able to read voltage across any of the pins.

Apply +24Vto Pin 2
Apply ground (-24V) to Pin 7

I have an actuator that I'm trying to power, it is only two wires. Hook up white to the + side and black to the - side, it extends. Hook up black to + and white to - it retracts. I'm trying to get this timer to extend the actuator, and then after a certain time, reverse polarity, and retract it back in.

From what I figured out, I should jump 6 and 8, and then hook up my white to 5, black to either 6 or 8, right? Or am I missing something here?

No matter what, though, I am not reading any voltage across any of the pins, besides for the one'* that are receiving the 24V. Possible that the relay is shot?

Here'* an image of the relay diagram on the side of it:



And, incase that relay is dead, I do have this one to use as well:

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Old 04-01-2008, 08:41 PM   #2
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I should mention that the actuator is 24V DC, and it would be prefered to run at 24V DC, due to the slowness of anything below that.
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Old 04-02-2008, 04:45 PM   #3
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Bump.
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Old 04-02-2008, 05:52 PM   #4
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I'll play.

The relay is 24vdc (the coil).
The timer is 120VAC
and the actuator is 24vdc.

You need to turn on the relay with the timer to activate the actuator.
So on the timer you need to apply 120Vac to A1 and A2.
connect 24v+ to pin 1 of the timer.
connect a jumper from pin 3 on the timer to pin 2 of the relay.
connect pin 7 of the relay to 24v-.
Now for the actuator.
connect the + on the actuator to pin 1 on the relay.
connect the - on the actuator to pin 8 on the relay.
connect pins 4 & 6 to 24v+
connect pins 3 & 5 to 24v-

Now that timer is programmable in some fashion, not sure of the options but seem to remember at least 4 settings. Time on, time off, cycle, etc. Allen Bradley has a good web site though for getting manuals.
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Old 04-02-2008, 07:27 PM   #5
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Is the 24 volt power to the timer the same power source for the actuator?
Do pins 2 & 7 power the timer?
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Old 04-02-2008, 08:08 PM   #6
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Quote:
Originally Posted by PontiacDad
I'll play.

The relay is 24vdc (the coil).
The timer is 120VAC
and the actuator is 24vdc.

You need to turn on the relay with the timer to activate the actuator.
So on the timer you need to apply 120Vac to A1 and A2.
connect 24v+ to pin 1 of the timer.
connect a jumper from pin 3 on the timer to pin 2 of the relay.
connect pin 7 of the relay to 24v-.
Now for the actuator.
connect the + on the actuator to pin 1 on the relay.
connect the - on the actuator to pin 8 on the relay.
connect pins 4 & 6 to 24v+
connect pins 3 & 5 to 24v-

Now that timer is programmable in some fashion, not sure of the options but seem to remember at least 4 settings. Time on, time off, cycle, etc. Allen Bradley has a good web site though for getting manuals.
Thats almost exactly what I ended up doing, and it works.

Pin 2 +24V input from 24V
Pin 7 -24V input
Jumper on pins 3&5 with + 24V input
Jumper on pins 4&6 with - 24V input
White from actuator to pin 8
Black from actuator to pin 1

Works like a dream, and the internal limit switch doesn't allow it to repeat the cycle over and over again.
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