REE6+ speed controller

- for power and speed regulation depending on the input magnitude
- for single-phase loads with maximum current of 6 A
- stepless or stepped regulation
- galvanic separated control inputs
- emergency input
- thermal protection for triac overload
- adjustable minimum speed
- DIN rail mounting
- for fan speed control, power control, dimmer
- operating temperature 0 to +40 °C
- storage temperature -20 to +60 °C

Use

- speed control of 230 V/50Hz single phase motors

Description

Single phase triac controller is used for continuous control of fans suitable for control by changing the voltage depending on the size of the input variable. The control variable can be a voltage input of 0-10 VDC, a current input of 0-20 mA or 5 digital inputs (stages), which are evenly distributed over the entire control range. The activation of a given digital input is a connection e.g. by a transistor with an open collector or a contact against GND on the terminal block. If no digital input is connected or both analog inputs are zero, maximum triac closure occurs. The decision level for tripping the triac is the activation of any digital input or an increase in control voltage above 0.25 V or an increase in current above 1 mA. The minimum speed, adjustable from approximately 60-150 V, can be set by a trimmer located next to the terminal block. The minimum speed can be set at the minimum analogue values of control voltage or current or when the digital input D1 is switched.

The regulator is equipped with an emergency input (terminals TK-TK). When the emergency input is disconnected, the triac is closed. This contact can be used to connect a thermocontact
motor. To protect the thermal overload of the triac, a temperature sensor is placed inside the controller, which reacts in case of overheating as well as failure of the emergency input, i.e. full closure of the triac. The front panel houses the triac cooler and operation indicator. The LED light indicates the state in which the controller is in. In the normal operating condition the indicator light is permanently lit. Changing the speed (opening angle) changes the intensity of the light. Flashing indicates emergency input/thermal overload operation.

A 10 VDC/100 mA power supply can be used to supply external sensors determining the control input variable. The cross-sections of the connecting wires must be dimensioned with regard to the length of the line and the risk of interference.