User manual ALFANET 53 Alarm thermostat.
Contents
1. User manual ALFANET 53 Alarm thermostat HIGH Low ALARM With and without buzzer AE ALFA 53 VDH doc 080334 Versie v1 0 Datum 06 03 2008 Software ALFA NET 53 File Do080334 WPD Bereik 50 50 0 C Installation On the connection diagram of the ALFANET 53 is shown how the sensors power supply and relays has to be connected After connecting the ALFANET 53 to the power supply a self test function is started As this test is finished the measured temperature will appear on the display Control The ALFANET 53 thermostat can be controlled by four pushbuttons on the front These keys are SET view change set point and reset the alarm UP increase the set point DOWN decrease the set point MODE relays status key Viewing setpoints Viewing Maximum alarm set point By pushing the SET key simultaneously with the UP key the adjusted maximum alarm set point will be shown Viewing Minimum alarm set point By pushing the SET key simultaneously with the DOWN key the adjusted maximum alarm set point will be shown A few seconds after releasing the SET key the set point disappears and the measured temperature will be visible again Changing the set points Push the SET key simultaneously with the UP or DOWN key till the maximum alarm set point or the minimum alarm set point appears Release the SET key Push the SET key again and now the set point can be changed wi2. larm Sensor failure 7 Sensor failure Function Relay 2 Function Relay 3 Switching differential Relay 1 Switching offset Relay 1 Switching differential Relay 2 Switching offset Relay 2 Switching differential Relay 3 Switching offset Relay 3 Time delay minimum alarm 99 Minutes Time delay maximum alarm 99 Minutes Reset alarm relay after recovering No alarm Yes Reset alarm relais after manual No reset Yes Network number Software version Production year Production week Serial number x1000 Serial number Units Address VDH Products BV Tel 31 0 50 30 28 900 Produktieweg 1 Fax 31 0 50 30 28 980 9301 ZS Roden Email info vdhproducts nl Nederland Internet www vdhproducts nl Dimensions 000000000000 Connections T MO I Ke Lay z amng c Re Lay cwaeLy 4nd g Ke Lay ZHO9 0S JEADES A ddns 3 TAX ON ht On cht ON cht ON ONN TT8Ws T YOSNAS SI1YM pub y 98753 g S8vsy 0nd
3. short circuit the display alternates between error code E and L as indication for a short circuit sensor H Incase of open circuit sensor the display alternates between error code E and H as indication for a open circuit sensor Reset Alarm When an error messages appears it can be reset by pushing the SET key The function of this key depends on parameter P42 Technical data Type ALFANET 53 Alarm thermostat Rail Range 50 50 0 C above 10 C read out 0 1 C Supply 230Vac 50 60Hz 5 10 Read out 3 digit 7 segments display Relays Ry1 SPST NO 250V 8A cos 1 of 250V 5A cos 0 4 Ry2 SPST NO 250V 8A cos 1 of 250V 5A cos 0 4 Ry3 SPDT NO NC 250V 8A cos 1 of 250V 5A cos 0 4 Relays have one common C Control by push buttons on the front Front Polycarbonate Sensor SM 811 2m PTC 10000 25 Dimensions 90 x 71 x 58mm hwd Panel cut out 46 x 71mm HW at panel mount Accuracy 0 5 of the range Provided with memory protection during power failure Connections with screw terminals on the back side Equipped with sensor failure detection Special versions on request available Parameters ALFANET 53 Para Description Parameter Range Default meter Function Relay 1 0 Non Minimum Control alarm Maximum Control alarm Minimum Fail safe alarm Maximum Fail safe alarm Minimum Fail safe alarm Sensor failure 6 Maximum Fail safe a
4. th the UP or DOWN key A few seconds after releasing the keys measured temperature will be visible again Status of the Relays By pushing the MODE key the display shows the status of the relays Each digit shows the status of one relay output showing O off and 1 on The code 110 means relay 1 and 2 are on and relay 3 is off Setting internal parameters Next to the adjustment of the set point internal settings can be made like differential sensor offset set point range and the functions of the thermostat Push the DOWN key for more than 10 seconds to enter the Internal Programming Menu In the left display the upper and lower segment are blinking Over the UP and DOWN keys the required parameter can be selected see table for the parameters If the required parameter is selected the value can be read out by pushing the SET key Pushing the UP or DOWN key to change the value of this parameter If 20 seconds no key is pushed the ALFANET 53 changes to the normal operation mode Adjustment sensor The sensor can be adjusted by using the Sensor Offset parameter 05 Indicates a Sensor e g 2 C to much the according Sensor Offset has to be decreased with 2 C Error messages On the display of the ALFANET 53 the following error messages can appear LO Minimum alarm Thermostat HI Maximum alarm Thermostat E1 Sensor failure Settings are lost Solution EEE Reprogram the settings L In case of sensor
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