LC multi-function display with plain text display:
Different menu languages can be selected
Simple start-up by opeating modes:
You can choose between different operating modes, for example, external activation, temperature control, pressure control condensers.
Typical settings for the activation of fans and activation of the spraying stages can be made easily.
3 analog inputs for sensors or setting signals:
Analog input E1 and E2: Setting by operating modes or manually programmable, e.g. 0-10 V, 0-20 mA, 4 – 20 mA.
For input E2, special functions (external manual mode, external setpoint, measurement value for limit messages) can be programmed.
Input E3: To measure the outdoor temperature (the CKE-3ARV includes a TFR thermistor for this). Relay switching points for frost protection can be set depending on the outdoor temperature
6 digital inputs D1 to D6:
Setting by operating modes or manually programmable. Limit switches for valves, enable, switch over setpoint 1 or 2, external fault, control function inversion, output limitation, manual mode.
2 analog outputs A1 and A2:
Output A1: 0-10 V for activation of fans, e.g. by external speed controller (e.g. Fcontrol frequency inverter).
Output A2 manually programmable, e.g. 0-10 V proportional modulation, constant voltage, proportional input signal.
2 digital outputs (relays) K1 and K2:
Setting by operating modes or manually programmable. Spraying stages 1 / 2 / 3, activation supply cock/pump (frost protection), operating indication, fault indication,
limits, external fault at digital input.
Interference emission according to EN 61000-6-3 (domestic)
Interference immunity according to EN 61000-6-2 (industrial)