Installation and User Guide DEVIreg™ Multi
FEC | Produced by Danfoss ©6
4 User Manual
4.1 Control modes overview
The DEVIreg™ Multi is 7 channels controller and every channel can be individually set up
with one from three control modes:
1. Single sensor control with temperature sensor - ‘1 Sensor’ mode or ‘1S’.
2. Time proportional power regulation – ‘Power Regulation’ mode or ‘PR’.
3. Manually On/Off control with time period – ‘MOn’/’MOf’ mode.
1S mode or Single sensor control
1S mode is control with temperature sensor and adjustable hysteresis. 1S control typically
can be used for Pipe heating, Ground Ice & Snow melting, Cold rooms’ protection, Comfort
Floor heating, Total heating and other applications with temperature control.
This control mode is similar to well-known DEVIreg™ 316 thermostat.
Universal analog channel’s inputs (AI) can be selected via software between 8 types of
temperature sensors including NTC 15 kOhm at 25°C.
This mode can be set up with special function to control Alarm min. and max. temperatures.
Additionally, it can be set up with so called Cable OK? function which uses channel digital
input (DI) with connected Current Monitoring Relay (CMR) to control availability of elec-
tricity passing through a heating cable or similar.
PR mode or Power Regulation control
PR mode is time proportional power regulation with a simple duty cycle generator. Time
for status ‘Heating On’ during the chosen mode cycle can be set up by installer. PR control
typically can be used where one wants to dissipate a subjective amount of power.
This mode is also not connected to a temperature sensor and is therefore very suitable for
installation where it is impossible to install temperature sensor.
This control mode is similar to well-known DEVIreg™ 527 controller.
This mode can be set up with so called Cable OK? function which uses channel digital
input (DI) with connected Current Monitoring Relay (CMR) to control power consumption
or similar.
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