The new era of SHEV systems
It has been hotly anticipated, and now it has arrived. The fully modular CPS-M digital smoke vent control panel from D+H has a new module, the AM 230. The AM 230 now enables a smart control panel to supply and control motorised 230 volt drives in addition to 24 volt window drives. What are the advantages? Smaller cable cross-sections, longer cable lengths and reduced costs.
The AM 230 is, like all other CPS-M modules, contained in the standardised CPS-M module housing and is easily added to the supporting rail of the CPS-M via a module socket. The principle here is plug-and-play. Depending on the requirements of the building project and the customer's wishes, this makes it possible to adjust the size of the control panel and the control cabinet ̶ and even subsequent expansion is straightforward. The CPS-M can supply and control 230 V AC window drives up to a maximum drive current of 8 A using the new module. Cable monitoring is performed using the associated terminal module. The module checks for short circuits, overloads and individual cable breaks. The higher supply voltage makes it possible to achieve a substantially greater cable length than with a 24 V DC supply while using the same cross section. This reduces complexity and, most notably, costs. The CPS-M 230 V module has integrated signal lights on the front side as well as configurable digital inputs and outputs for connecting a ventilation button or similar. It also features an interface for directly connecting the NSV 401 emergency power supply unit.
Safety without exceptions even in the event of a power cut
Using the NSV 401, it is possible during a mains outage to continue controlling and supplying the connected motorised 230 V AC drives up to 72 hours ̶ the prescribed period in case of an alarm. The emergency power supply unit uses isolated change over contacts for signalling the system status. Signal lights on the front of the NSV indicate the battery polarity, battery charge, battery availability, operating state as well as the undervoltage and overvoltage of the main power supply. Through these convenient features, D+H ensures safe, convenient and fast maintenance and commissioning. Or, in other words: a smart emergency power supply.
The right bus communication for one large, reliable network
Alongside the CPS-M smoke vent control panel, D+H has also introduced the Advanced Communication Bus (ACB) technology. The Integration of ACB enables bidirectional communication between the control panel and drives. Using the ACB, up to 20 drives are connected to the CPS-M using just one group connector and one cable. "Using conventional controllers required laying an additional cable and using an additional group connector for every window that was supposed to be separately controlled," says Christian Kluge, Director of Development at D+H Mechatronic AG. "Reducing cable routing and cutting down on the number of modules provides a major cost advantage for our customers."
Service and configuration – All in one software program
Yet another benefit of the CPS-M: Functions and dependencies can be integrated into the control panel quite easily using the SCS software. For the CPS-M digital smoke vent control panel and for all other AdComNet (ACN) products, groups and lines in SHEV operation can be conveniently combined into smoke compartments via drag-and-drop. You can do so from any desired location in an ACN network. Using the SCS Software, each individual ACB-capable drive can be added separately into SHEV and ventilation operations. Through this "virtual grouping", each drive receives its individual drive commands and is able to issue its status information. The advantages:
» Increases custom configuration options
» Reduces the amount of wiring
» Cuts costs for additional actuator modules of the CPS-M
» Makes the control panel system even more streamlined
The precision control on the window is also possible using the SCS software. Using the perfect positioning control, ACB drives can be opened and closed down to the millimetre. This applies to both individual drives and to entire groups for natural ventilation. In summer, do you want to open the windows just a little or would you rather carry out automated ventilation by fully opening windows? The CPS-M and its technical innovations give architects and specialist planners the choice of having all windows open - both for smoke extraction and for controlled natural ventilation.