Triac speed controllers ERV ..TMB
The triac speed controllers ERV ..TMB are designed to change the motor rotation speed by changing the output voltage. Controllers have the function of triac thermoprotection. The regulation of the motor rotating speed is stepless from the set minimum inside the controller up to the full supply voltage on the controller's output. The rotating speed setpoint can be done with a knob which is located on the cover of the controller, or with the external control signal 0-10VDC, by the interface RS-485 MODBUS. The controller work mode can be changed with the external relay contacts. The controllers also have an ON/OFF switch with the green power supply indication. The fuse is installed in the controller for safety work. More than one motor can be connected to the controller if the total current of all motors is less than the maximum controller current.
TECHNICAL DATA
- The regulation of motor rotating speed is stepless from the set minimum inside of controller up to full supply voltage on the controller's output.
- Minimum output voltage setpoint range: 50..150VAC.±5%.
- Power supply: 230 VAC±5%.
- Frequency: 50/60 Hz.
- Protection class: IP54.
- Max. ambient temperature: 35°C±5%.
- Max. controller temperature: 70°C±5% is limited with thermoprotection.
