Description Purpose and application The DIM MCU electronic potentiometer (manual control unit) controls up to 50 dimmable electronic control gears and enables the manual brightness control of luminaires. DIM MCU The potentiometer is mounted in flush device boxes. Function The potentiometer converts rotations of and pressure on the rotary knob into 1...10V voltage signals, which are transmitted to the dimmable electronic control gears. Design B The potentiometer is made up of the following components: • Rotary potentiometer (A) • Connections (C) A –– Control lines (+, –) –– Dimmed + switched phase (↓) –– Phase (L) –– Trimmer (B) • Housing with rotary knob (D) ↓ Manual control unit Fitting instructions + – L C D Installation Safety instructions The potentiometer must only be installed and put into operation by a qualified electrician. The applicable safety regulations and accident prevention regulations must be observed. WARNING! Exposed, live cables. Danger of electric shock! • Only work on the potentiometer when it is deenergised. CAUTION! Destruction of the potentiometer and other devices through incorrect mounting! • The potentiometer is designed for mounting in flush device boxes. If mounted elsewhere, provideadequate cable strain relief and insulation. • Do not wire the control line with an external voltage, especially not a mains voltage of 230 V. • Do not exceed the maximum number of ECGs. IV 2009 DIM_MCU_ma0904en_we1.01.indd OSRAM GmbH Kunden Service Center Customer-Service-Center (CSC) Steinerne Furt 62 86167 Augsburg Germany Tel : +49 (0) 1803 677 - 200 (kostenpflichtig / charges apply) Fax.: +49 (0) 1803 677 - 202 www.osram.com www.osram.de 40503003474246 4050300347424 Continued on the back page! Connecting the potentiometer Installation (cont.) EConnection diagram for up to 10 single-lamp or 5 two-lamp ECGs E FConnection diagram for up to 50 dimmable ECGs N L _ + DIM MCU L N N L _ + G 1 2 3 4 N L _ + G 1 2 3 4 N L _ + G 1 2 3 4 N L _ + G 1 2 3 4 N L _ + G 1 2 3 4 N L _ + G 1 2 3 4 G Dimmable ECG HConnect max. 10 single-lamp or 5 two-lamp ECGs IConnect max. 50 dimmable ECGs K Relay or contactor _ + H F N L3 L2 L1 N L K _ + DIM MCU _ + } L1 L2 L3 N I Appendix Technical data Operating voltage 230 V AC, 50-60 Hz Switching output load capacity Max. 6 A resistive load (10 single-lamp ECGs or 5 two-lamp ECGs) Control output load capacity Max. 40 mA (max. 50 OSRAM 1...10V ECGs or 16 DIM SA signal amplifiers) Permissible line cross section Max. 1.5 mm² Permissible ambient temperature 0 °C ... 50 °C Protection type IP 20 Protection class II Dimensions Flush-mounted part (Ø x H): 54 x 33 mm Mounting plate (L x W): 71 x 71 mm Dimensions 51 4 33 71 54 71 Conformity with the relevant EU directives is confirmed by the CE symbol.
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