Suppliers of roller shutters usually offer a push-button switch without latching as part of the set for roller shutters with an electric motor. This switch is quite expensive (about $12 and up), and it does not always aesthetically match the rest of the switches and outlets in the house, since its style is mostly simplified. The question arises whether it is possible to somehow replace the standard model with one more suitable to the style and interior of the house. We will try to explain to you the principle of operation and offer options for connecting the roller shutter using a pass-through (or main) switch.

To begin with, how does a standard roller shutter switch work?

When you press and hold the left key (Fig. 1), the roller shutter rises as long as you hold the key. When you press the right key, lowering occurs. This type of roller shutter operation is always convenient, especially if it is assumed that the roller shutter should be in two positions, either open or closed. For such a simplified operation of the roller shutter, we only need one pass-through (pass-through) switch.

Picture 1. 

Here the connection diagram is quite simple. The phase is supplied to the input of the switch, for example, the motor is connected to output 1 for “raising” and to output 2 for “lowering”. The disadvantage of this connection is that it is impossible to stop the roller shutter in an intermediate position (half-open) and that there will always be a phase present on the motor. This drawback can be eliminated using a double switch with an ordinary one. The connection diagram for this is shown in Figure 3.

 

Figure 2	Figure 3

 

It's a different matter if you use a two-key pass-through switch. Connection diagram in Fig. 4

Figure 4.

 

This connection diagram allows you to control the engine in lifting and lowering modes in the same way as a standard switch. One switch key works for “raising”, the second for “lowering”. The only difference is that to work, for example, on “raising”, the switch on “lowering” must be in the “off” position. and vice versa. Important point! After you assemble the circuit, do not rush to connect the motor. Check everything at idle. It is necessary that at outputs 1 and 2 at different positions of the switch, in no case should there be “Phase” at the same time, since in this case the engine will burn out. Very often, one’s own self-confidence brings disastrous results. There's no need to rush. Good luck.

In this video review, we tried to talk in detail about how you can make a non-latching switch from an ordinary double pass-through switch with latching.