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Russell H.
Russell H., Service Tech
Category: Consumer Electronics
Satisfied Customers: 9292
Experience:  8+ years of professional experience
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I am needing to wire up a dual hand safety switch. This is

Customer Question

I am needing to wire up a dual hand safety switch.
This is for a label applicator .
i need to send the signal to the applicator to make it cycle.
I need help in the wiring.
I have the pin assignments of the 15 pin connector and
the switches have 4 wires. a +24 volt, common, normally open and normally closed
the pinn assignments are, I will only list the pins I belive matter.
1. Start+
8. Ground
9 Start-
15. +24v.
These need to be wired so both when both switches are closed the
applicator gets the signal.
Submitted: 7 months ago.
Category: Consumer Electronics
Expert:  Russell H. replied 7 months ago.

Hi, thank you for contacting My name is Russell. I will do my best to provide the right answer to your question.

I could give you directions of hooking the two switches together to make a 'mechanical AND' switch... but just what exactly is supposed to be let through, or given to the applicator to make it cycle... ? ... perhaps +24V ? ... perhaps something else?

Let me know also, whether when one switch is pressed, the normally open is connected to the normally closed, or whether the normally open is connected to the +24V, or what?

Customer: replied 7 months ago.
I am wanting to send a signal to a label applicator.
The signal will come when both the dual hand safety switches are activated. ( when the operator presses both switches)
The pin assignments on the applicator are as follows:Pin Signal
Customer: replied 7 months ago.
Pin Signal Direction Function
1 Start+ input START signal Positive
8 GND ground
9 Start - (input) STOP signal Negitive
15 +24 volt +24v 1APins can be wired in the following configuration.External High TriggerSTART+ pin 1 connected to an external high pulse( 24 v) Pin 15
and Start- pin 9 connected to GND pin 8Each of the two switches have 4 wires
Brown wire is for 24 V +
Blue wire is the common
Black is normally open 4
white wire is normally closed 2let me know if you need more infoI am looking for you to tell me how to wire the two switches together along with the 15 pin connectorthank you
Expert:  Russell H. replied 7 months ago.

There will be two switches.

Switch # ***** will be wired to + on the Brown wire.

and to GND on the Blue wire.

Switch # ***** will be wired from the Brown wire (which must NOT be connected to anything else but this, not to + for sure) ... from the Brown wire on switch # ***** back to the Black wire on switch # *****

Switch #2 will otherwise be wired from the Black wire on it, to the pin # ***** on the applicator.

Here's a primitive sketch to make all clear as possible:

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