Transcript
PSR 12 DC DC power supply unit USER MANUAL
1. General description The PSR 12 DC is a general purpose power supply with 12 Vdc, 18 W output. The mains side will nominally accept 90-264 Vac at 47-63 Hz. The unit has internal fuse protection against sustained short circuit and overloads. The unit can power several Siqura modules, even in outdoor cabinets. The unit can be clipped onto DIN or Euro rail, and also comes with a small, profiled baseplate that makes it possible to fasten the unit on a flat surface, both methods using the spring clamping mechanism on its bottom. For Technical Specifications, see section 3.
2. Installation The drawings below indicate how to install the PSR 12 DC. If the green LED on the curved surface lights up, the unit is working correctly. Do not remove the jumper from the terminals at the DC side. Figures 3 and 4 depict the fastening methods on baseplate and rail, respectively. Please take the following general precautions: - take care not to block any ventilation holes - leave space for cooling - avoid moisture/condensation - avoid grime buildup The screwdriver indicated in figure 4 can be used to ease a plastic lever if a wire needs to be disconnected.
© Siqura 2015 Version 051103-2b PSR 12 DC (MW10)
3. Technical specifications Input Voltage range nominal Frequency AC cont.
100-240 Vac 47-63 85-264 Vac
Inp. current nominal
< 0.6 A @ 100 Vac < 0.25 A @ 240 Vac Inrush current 15.5 A/0.3 A2s @ 120 Vin 36 A/1.2 A2s @ 240 Vin (typically Tamb = 50oC. cold start, mains according to EN 61000-33) Power factor Internal input fuse
unit fulfils EN 61000-3-2 T3A15/250 V HBC(IEC127), terminal L
Output Rated voltage Rated output power Load current limit Ripple and noise Overload/short circuit protection
12 V 0.5% 18 W @ 70 oC 3.2 A @ 100-120 Vac, or 3.5 A @ 230 Vac, temperature derated <10 mVpp continuous operation without shutdown; overload voltage 18 V
Environmental & safety Temperature limits Operating Relative humidity Protection MTBF
-10 ... +60 oC (18 W output, rated for use in MC 02 E and similar cabinets) <95% (no condensation) IP20 >500,000 h
Safety EMC emission EMC immunity
IEC/EN 60950-1, UL listed EN 50081-1, EN 55022 class B, FCC pt. 15, class B EN50130-4, IEC/EN 61000-6-2
Mechanical Size (hxwxd) Weight
75 x 45 x 91 mm x mm x mm(w/o rail) 250 g
4. Safety and EMC information The equipment described in this manual has been designed and tested according to the IEC 60950-1 safety requirements. It is an IEC safety class 1 product; the ground wire in the line cord must be connected when operating. The equipment has been tested and found to meet the EG regulations relating to EMC, and complies with the limits for a Class B device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against interference to radio communications in any installation. The equipment does use radio frequency energy; improper use or special circumstances may cause interference to other equipment or a performance decrease due to interference radiated by other equipment. In such a case, the user will have to take appropriate measures to reduce such interactions between this and other equipment. The equipment described in this manual is designed for use by properly trained personnel. This means that adjustment, maintenance and repair of the equipment should only be carried out by qualified personnel aware of the hazards involved. For correct and safe use of the equipment and in order to keep the equipment in a safe condition, it is essential that both operating and servicing personnel follow standard safety procedures in addition to the safety precautions and warnings specified in this manual. If there is any doubt regarding the safety of the equipment, do not put it into operation. This might be the case when the equipment shows physical damage or is stressed beyond its tolerable limits (e.g. during storage and transportation). Before opening the equipment, disconnect it from all power sources. After disconnection from its power sources, the capacitors in the equipment may remain charged for some seconds. When removing covers or other parts of the equipment, live parts or terminals may be exposed. If the opened, live equipment needs calibration, maintenance or repair, only trained personnel, who are aware of the risks, may perform this. Any interruption of the ground wire inside or outside the equipment, or disconnection of the protective earth terminal, could make the equipment dangerous. Before any connections are made, the equipment must be connected to safety ground. Electrostatic discharge (ESD) can damage or destroy electronic components. Proper precautions should be taken against ESD when opening the equipment.
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