Instruction Manual

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Velbus manual VMB3PS– edition 1 – rev.1.0

VMB3PS

Power Supply Module

for VELBUS system

Summary of content (10 pages)

PAGE 1
VMB3PS Power Supply Module for VELBUS system Velbus manual VMB3PS– edition 1 – rev.1.
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INDEX Features ......................................................................................................................................... 3 Connection .................................................................................................................................... 4 Transformer with 2 x 6V secondary voltage ............................................................................ 4 Transformer with 2 x 6V secondary voltage and centre tap ................................
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Features: ◊ ◊ ◊ ◊ ◊ ◊ ◊ ◊ Three 12VDC/1A outputs for powering VELBUS modules. Short-circuit safe LED indicators for input voltage and the 3 output voltages. Connectable to transformer with 1 x 12V or 2 x 12V secondary voltages. Required input tension: 12VAC/3A Standard DIN-rail housing (2 modules) Dimensions (L x W x H): 90 x 36 x 58mm. Weight : 80g Velbus manual VMB3PS– edition 1 – rev.1.
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CONNECTION The power module is equipped with three 12VDC outputs, each delivering 1A. Connect the 12V voltage outputs of the power module to the 12V power inputs of the preceding modules (mind the polarity). Note that the total consumption of the connected modules on one DC output may not exceed 1A. Make sure to use an appropriate wire gauge (1mm2 or more) with very long connections. Connect a 12V transformer delivering min. 3A to the power module input.
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Transformer with 1 x 12V secondary voltage: To power loads N L A Circuit breaker B C D E F 12V Sec. VMB... VMB3PS Prim. -12V+ -12V+ -12V+ -12V+ BUS L H 1A max. N L + 12V/1A max. AC Power - + 12V/1A max. - Transformer with 2 x 12V secondary voltage: To power loads L N A Circuit breaker 12V Sec. B C D E F 12V Sec. VMB... VMB3PS Prim. 12V 12V 12V - + - + - + 12V - + BUS L H 1A max. L N AC Power + 12V/1A max. - + 12V/1A max. - Velbus manual VMB3PS– edition 1 – rev.
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Transformer with 2 x 12Vsecondary voltage and centre tap: To power loads N L A Circuit breaker 12V Sec. B C D E F 12V Sec. VMB3PS VMB... Prim. -12V+ -12V+ -12V+ -12V+ BUS L H 1A max. N L AC Power + 12V/1A max. - + 12V/1A max. - Velbus manual VMB3PS– edition 1 – rev.1.
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USE Use of a common transformer with 2 x 12V secondary voltage on different power modules: To power loads N L A Circuit breaker 12V Sec. B C D E F 12V Sec. VMB3PS VMB... Prim. -12V+ -12V+ -12V+ -12V+ LBUSH 1A max. L N + 12V/1A max. AC Power - + 12V/1A max. - A B C D E F VMB... VMB3PS -12V+ -12V+ -12V+ -12V+ LBUSH 1A max. + 12V/1A max. - + 12V/1A max. - Velbus manual VMB3PS– edition 1 – rev.1.
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Use of a common transformer with 2 x 12V secondary voltages and centre tap on different power modules: To power loads N L A Circuit breaker B C D E F 12V Sec. 12V Sec. VMB3PS VMB... Prim. 12V 12V - + - + 12V - + 12V - + BUS L H 1A max. N L + 12V/1A max. AC Power - + 12V/1A max. - A B C D E F VMB... VMB3PS 12V 12V 12V - + - + - + 12V - + BUS L H 1A max. + 12V/1A max. - + 12V/1A max.
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To power loads N L A B C D E F Circuit breaker 12V 12V VMB... VMB3PS Prim. 12V - + -12V+ -12V+ -12V+ 1A max. N L + -12V/1A max. + 12V/1A max. - AC Power To power loads N L A B C D E F Circuit breaker 12V 12V VMB3PS VMB... Prim. 12V - + 12V - + 12V - + -12V+ 1A max. + 12V/1A max. + 12V/1A max. - L N AC Power To power loads N L A B C DE F Circuit breaker 12V VMB3PS VMB... Prim. -12V+ 12V - + -12V+ -12V+ 1A max. N + 12V/1A max. + 12V/1A max.
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Velbus manual VMB3PS– edition 1 – rev.1.