Despite the market tendencies which go in the direction of continuous control of air flows (VFD/inverter, brushless), in low-cost applications and in plant revamping one can find motors with 3 speed operation.
For this purpose, CRIOTHERM ZETA PLUS proposes a conversion module 0..10 V with 3 relays, having the following characteristics:
- 4 DIN format with optional integrated display
- 230 Vac electrical supply
- Integrated RS485 serial port
- MODBUS RTU communication protocol
- 0..10 V analogue piloting signal
- Up to 3 relay outputs (speeds)
- Activation steps of the various speeds as a function of the piloting signal, freely settable from the parameter
