The manual refers to the following devices (Order number respectively written in bold letters): AKH-0400.01 Heating actuator 4-fold, 2TE, 24 or 230V AC, MRDC o 4 channels for electrothermic valve drives, for the maximum number of electrothermic valve drives have a look at 6.5 Datasheet, detection of 230V AC failure, 230V AC/24V AC short circuit detection of connected load ...
Next to the same parameterization options as by the 1 Byte input value, the actuator contains of a lot additional settings for the controller at the integrated controller mode. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
(6) Switch the power supply on (7) If the device is enabled you can test the requested functions(also possible by using the ETS- Software) MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Status of the current maximum control Out, Read value 85/165 Max. control value Adjustment of the maximum control value Out, Write Table 2: global Communication objects MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
„ o ti uous 1B te The control value is executed as 1 Byte value. Furthermore additional objects, depending to the parameterization, are available. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Because of the control value is created by the integrated controller itself, no object for the control value is shown. Instead of this, an object for the temperature measurement (Input) is shown. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Max. control value Output 1 Byte High 85/165 Max. control value Input 1 Byte High Table 6: Default-settings of the communication objects MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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The flags allocates the function of the objects in the programming thereby stands C for communication, R for Read, W for write, T for transmit and U for update. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
(have a look at 4.1.3). So the actuator works only at the heating mode. Number Name Length Usage 80/160 Summer/Winter 1 Bit Switchover between summer and winter mode Table 10: Communication object Summer/Winter mode MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
The setti g Co t ol alues set to % at su a o l e a ti ated if the heati g/ ooli g switchover is disabled. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
This protection controls all channels at a fixed period of 6 days for 5 min and drives the valves once completely open. So, a smooth operation of the valves can be secured. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
85/165 Max. control value(Input) 1 Byte receives the current maximum control value from another actuator Table 15: Communication objects max. Control value MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
The setti g Re o e ode a d setpoi t loads the ode a d setpoi t, hi h e e active before bus power down. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
At the setti g ot e e gized losed , the output sig al is i e ted. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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Length Usage State control value 1 Bit sends/responds the actual value of the control value Table 22: Communication object state control value MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
0%: Number Name Length Usage Dew point alarm 1 Bit activates the dew point alarm Table 27: Communication object dew point alarm MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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Number Name Length Usage Forced position 1 Bit activates the forced position Table 29: Communication object forced position MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Processes the incoming control value State control value 1 Byte State object of the actual control value Table 30: Communication objects control value – 1 Byte MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Both adjustment options and the usage of them are shown at the following section. If more than one valve is adjusted, it is recommended to adjust to the slowest one. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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But this method can also cause larger fluctuation close to the heat source. Furthermore the valves are more heavily loade by the relatively often driving process. This setting is proven at slow systems, e.g. underfloor heatings. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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But if more than one valve is controlled, the average state of the valves is nearly unreachable. So fluctuations of the romm temperature can occur. This setting is proven at fast systems, e.g. radiators. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
This behavior is reasonable because of energy saving issues, because otherwise the electrothermic valve drives would consume, even if they are not used, the minimum limit of the nominal power consumption. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Number Name Length Usage Flow temperature 2 Byte Processing of the measured flow temperature Table 34: Communication object flow temperature MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
. The o t olle a parameterized at this submenu. Figure 23: “u e u i tegrated o troller MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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: Figure 24: Controller general The parameterization options for the integrated controller are described at the following sections: MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
If the controller is selected only as heating or as cooling, only settings for the adjusted operating mode are shown. The operating modes with their differences are described at the following sections. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Comfort Night Frost-/ Heat protection Comfort Night Frost-/Heat protection Standby Frost-/Heat protection Comfort Table 40: Example operating mode switchover via 1 Bit MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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When more than one testify is valid, the hex values are added and the communication object sends the added value. The hex values can be read from visualization afterwards. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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Visualization measuring/ status of the controller mode selection 1 Byte Selection of the operating mode Table 45: Communication objects for the operating mode changeover MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Specifying a new value is possi le alli g the o je t “etpoi t o fo t . MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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1 = +0,5°C / 0 = -0,5°C Actual setpoint 2 Byte Readout of the actual adjusted setpoint Table 47: Communication objects setpoint offset MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
If a free Adjustment is chosen, proportional range and reset time can be chosen freely. This setting needs enough knowledge at the area of control engineering. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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big reset time: slow regulating of deviations; almost no danger for swinging across; usage at slow systems as underfloor heating MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
PWM cooling for 4 pipe 1 Byte Control value for the cooling mode system Table 52: Communication object for 4 pipe system MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
All activities on the device should only be done by an electrical specialist. The county specific regulations and the applicable EIB-directives have to be observed. MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
Three different controller types can be chosen for the control value. These controller types are described for the heating process by the following illustrations. 6.4.1 2-Step control MDT technologies GmbH • 51766 Engelskirchen • Papiermühle 1 Tel.: +49-2263-880 • Fax: +49-2263-4588 • knx@mdt.de • www.mdt.de...
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• Objects for heating request and cyclic movement of the valves • Modular installation device for DIN 35mm rails • Integrated bus coupling unit • 3 years warranty DIN EN ISO 9001 MDT technologies GmbH 51766 Engelskirchen • • Papiermühle 1 TAW Cert Tel.: + 49 - 2263 - 880...
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* depends on manufacturer. Inrush current for 4 electrothermic valves has to be < 1A each electrothermic valve ** every group of four outputs Examplary circuit diagram AKH-0800.01 DIN EN ISO 9001 MDT technologies GmbH 51766 Engelskirchen • • Papiermühle 1 TAW Cert Tel.: + 49 - 2263 - 880...