Introduction

Introduction 1:
KM2774 - Triac outputs for four blind motors

The KM2774-0000 terminal module is used for controlling up to four motors for blinds and for connecting the associated push buttons.

Three interlocked triac outputs (230 V, 1.5 A), three digital inputs (24 V) and one ground switching output (24 V, 20 mA), e.g. for connecting a button LED, are available for each motor. The outputs are protected against overload. An adjustable overcurrent limit protects the motor from damage.

LEDs indicate the status of the inputs and outputs. In addition, there are LEDs for data traffic on the K-bus (RUN), the presence of the supply voltages (24 VDC, 230 VAC) and for the indication of overtemperature (Error) in the terminal module.

The triac outputs, the LED outputs and the status LEDs are not controlled if the power supply voltage (230 V) is not present, or if the temperature is too high.