The short-stroke push-buttons S-WS-0004R-Merten, connection to the C-IT-0504S

The S-WS-0400R-Merten is a controller with a short-stroke control, with LED indication and a temperature sensor. The controller should be connected to a device that allows reading binary inputs, controlling LEDs via binary outputs and measuring the temperature (the NTC 12k sensor is fitted under the fingerboard of the module); e.g. the CFox module C-IT-0504S may be used.

The S-WS-0400R-Merten can also be connected to different inputs and outputs while maintaining the polarity of the inputs and outputs. The C-IT-0908S-PNP module may also be used, but approx. 3k3 resistors must be included in series with the binary outputs of the C-IT-0908S module (to comply with a maximum 3mA current on the C-IT-0908S module output).

The LED outputs can also be switched by other analogue outputs, which supply 5 mA current at the voltage of 10 V.

Fig. 1. An example of connecting the S-WS-0400R-Merten controller to the C-IT-0504S module

Notes:

1. The module consists of fingerboards, the basic part with the buttons, LEDs, a temperature sensor, a terminal block and the supporting parts for mounting on a flush box, which will be completed with a standard Merten frame.

2. The layout of signals on the terminal block is shown in the example of wiring; the placement of the terminal block on the rear side of the module is shown in the following figure.

Fig. 2. The placement of the terminals on the rear side of the S-WS-0400R-Merten module