Control moduleUSC710D4-…-HA

Control module with single fault tolerance for load switches or circuit breakers Functions in accordance with IEC 60364-7-710 / DIN VDE 0100-710 (VDE 0100-710) Further measures to increase the electrical safety Product description The factory-made control modules of the USC710D4-HA series are designed to control changeover and monitoring modules with load switches or circuit breakers. Load switches and circuit breakers are used as switching elements. In conjunction with the TMX-HA operator panel, also manual control of the changeover module is possible, e.g. for servicing purpo- ses. Information exchange between the changeover modules and the alarm and operator units is established via bus technology. The module is suitable for mounting onto all com- mon DIN rail systems (equipment racks have to be provided). • Voltage monitoring with control function – on the preferred supply (Line 1) – on the second supply (Line 2) – at the output of the changeover modu-le (Line 3) • Variable changeover period t < 0.3…20 s + operating time of the swit- ching element • Protection against wrong operation by multiple interlocking• control circuit with single fault tolerance • Automatic return on recovery of the voltage• Functional testing including checking of the operating times• N conductor monitoring option • Continuous monitoring of the actuation devices and automatic processes (coil, control contacts, connections).• Monitoring for short-circuits at the output of the changeover device with pre-defined switching behaviour.
2.1 USC710D4-01-HA – Typical module Device features Single fault tolerance • Complete solution for changeover mo-dules with integrated load switch or cir-cuit breaker (3-pole or 4-pole) of diffe- rent manufacturers• Bus technology for easy installation and reduced fire load• Clear menu structure with LC display allows easy parameter setting• Internal functional testing including checking the operating times• Variable changeover period t < 0.3…20 s + operating time of the switching element• Automatic interlocking funktion (optional)• Suitable for all common din rail systems • Screwless-type connection technique • HA version for manual/automatic control • Additional alarm contacts (optional) • power supply for MK2430/MK800 • Special version available for use with ge-nerators • Voluntary testing of the control module by TÜV Süddeutschland The Control modules continuously monitors the functions and in this way ensures that an individual, foreseeable error cannot lead to a failure of the power supply at the output of the automatic changeover and monitoring module. (DIN VDE 0100-710: 2002-11 para. 710.521.6 control circuits). Function Indications/messages In fault-free condition, the preferred supply line is switched on. If the voltage drops in one or several line conductors below the set response value, changeover to the second supply will automatically take place. The changeover period can be set individually. In order to ensure operational readiness, the second line as well as the output of the changeover module (Line 3) are monitored too. On recovery of the voltage, return to the preferred supply line occurs automatically. Owing to variable delay times (return transfer time or pause time), the USC meets the individual installation-specific requirements (e.g. coordi- nation of several changeover modules, reduction of switching energy). Via the menu, the function of the changeover module can be tested.When the safety power supply source is supplied by a generator, the control module must provide a start-up signal in case of failure of the preferred supply. These versions provide an input for generator test functions. • Plain text messages display for all essential operating, fault and alarm messages • Information exchange between alarm indicator and operator units via BMS bus • Common alarm contact with protective separation in accordance with EN 50178 • alarm contacts for failure/operation of line 1, line 2, switching state of the switching elements
26 Main catalogue part 2 – 05.2008/Hospital engineering