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When do the control signal and the feedback signal correspond?
The control signal and the feedback signal will only correspond when Vmin = 0 m³/h (0%) and Vmax = Vnom (100%) are programmed
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Why is it essential for the feedback signal to be returned to the switching cabinet?
If the feedback signal is fed back to the switching cabinet via cable, then the controls in the switching cabinet can interpret and process this signal. Accordingly, this allows setting subsequent, corrective control settings to be made directly from the switching cabinet, depending on operator requirements.
What was feedback signal mean and how is it calculated?
The feedback signal is an analogue voltage signal and always relates to the nominal volumetric flow of the volumetric flow controller. If the nominal volume (Vnom) is controlled, then the controller returns 10 V, at 0 m³/h the controller either returns 0 V (controller mode 0 - 10 V) or 2 V (controller mode 2 - 10 V).
Will the connecting or feed socket not cause damage to the flat band cable?
Only the cable sheathing is scored selectively or perforated slightly. The cable strand remains intact for power and data transmission under all circumstances. If one wants to insulate the scored part after shifting the connecting socket, one can use conventional insulation tape for flat cables. Alternatively: one places and additional connecting socket and leaves the previous socket in the present position. This is also possible.
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Which initial pressure loss and which end pressure loss does SCHAKO recommend for the use of its filter cells?
As-new SCHAKO filter cells have an initial pressure loss of approx. 85 - 115 Pa at nominal volume (depending on the filter type). SCHAKO recommends replacing the filter when the end pressure loss rteaches the limit of 500 Pa during running operation at nominal volume. This is the only way to avoid unnecessary energy losses in the air feed zone due to increased air feed.
Only a single type of cable can be used with the EasyBus system. Why?
The ideal type of cable for the EasyBus system is the multi-core flat cable which is nearly always used at SCHAKO. In conjunction with the connection or feed socket this allows quick and error-free cabling. However, other cables with a cross section of 2.5 mm can also be used in principle.
Up to which safe cable length can I plan with EasyBus?
128 modules can be connected per master. Each module is fitted with an approx. 1.5 m long cable. At a maximum of 200 metres direct device feed, the maximum remaining length of the flat cable is approximately 800 metres.