MSA PS-203-12.5 User manual

“NPK Morsvyazavtomatica”LLC
26E, Kibalchicha Str., St Petersburg Tel.: [phone] [email protected]
Russia, 192174 Fax: [phone] www.unicont.com
POWER SUPPLY UNIT
PS-203
Operating manual

Operating manual
v.0.3 Page 2
Table of contents
INTRODUCTION.........................................................................................................................3
1DESCRIPTION AND OPERATION OF THE PRODUCT...............................................4
1.1 Description............................................................................................................................4
1.2 Technical specifications........................................................................................................4
1.3 Structure and operation of the Product..................................................................................5
1.4 Measurement instruments, tools and appliances...................................................................6
1.5 Marking and sealing..............................................................................................................6
1.6 Packaging..............................................................................................................................7
2INTENDED USE OF THE PRODUCT................................................................................8
2.1 Operational limitations..........................................................................................................8
2.2 Usage preparations................................................................................................................8
2.3 Usage of the Product.............................................................................................................9
3TECHNICAL SERVICE OF THE PRODUCT.................................................................10
3.1 General description .............................................................................................................10
3.2 Safety features.....................................................................................................................10
3.3 Maintenance routine............................................................................................................10
3.4 Preservation.........................................................................................................................11
4CURRENT REPAIR OF THE PRODUCT........................................................................12
4.1 General description .............................................................................................................12
4.2 Safety features.....................................................................................................................12
4.3 Current repair ......................................................................................................................12
5STORAGE.............................................................................................................................13
6TRANSPORTATION...........................................................................................................14
7DISPOSAL.............................................................................................................................15
8WARRANTY.........................................................................................................................16
APPENDIX A (MANDATORY) REGULATORY DOCUMENTS ......................................17

Power supply unit
PS-203
Page 3
INTRODUCTION
This operating manual (hereinafter –OM) describes composition, structure, op-
eration and technical service of power supply units PS-203-12.5, PS-203-6.5 and
PS-203-3.3 types (hereinafter –the Product).
In addition to the instructions given in this document, the safety regulations and
rules applicable in the field shall be observed.
Only those who have read and understood this document and those who have
had special training shall be permitted to operate the Product according to the applicable
regulations.
TERMS AND ABBREVIATIONS:
OM –operating manual;
SB –storage battery;
SC –short circuit;
TS –technical service;
CL –check list;
PS-203-12.5 –power supply unit PS-203-12.5;
PS-203-6.5 –power supply unit PS-203-6.5;
PS-203-3.3 –power supply unit PS-203-3.3.

Operating manual
v.0.3 Page 4
1DESCRIPTION AND OPERATION OF THE PRODUCT
1.1 DESCRIPTION
1.1.1 The Product is designed to power different shipborne and industrial
equipment with regulated voltage 12 V, 24 V or 48 V DC (depending on the Product
type).
1.2 TECHNICAL SPECIFICATIONS
1.2.1 The Product converts alternating current with unregulated voltage into di-
rect current with regulated voltage 12 V, 24 V or 48 V (depending on the Product type).
Input circuit fuse protects the Product against SC.
1.2.2 Table 1 below describes technical specifications of the Product types.
Table 1 –Technical specifications
Parameter
Type
PS-203-12.5
PS-203-6.5
PS-203-3.3
Input supply voltage, AC, fre-
quency 50 (60) Hz, V
110 (90 to 132)*
220 (180 to 264)*
Output voltage, DC, V
12
24
48
Nominal load current, А
12.5
6.5
3.3
Power consumption, W
175
Output power, W
150
156
158.4
Efficiency, %
83
86
86
Fuse rating, А
5
8
5
Protection
Power supply galvanically isolated from power mains
Overvoltage protection
Max. weight, kg
2.2
Protection degree
IP22
Operating temperature, °С
–20 to +55
Limiting temperature, °С
–60 to +70
* Supply voltage range is given in parenthesis.

Power supply unit
PS-203
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1.3 STRUCTURE AND OPERATION OF THE PRODUCT
1.3.1 The Product is manufactured in metal casing, where a piano type power
switch (on/off) and fuse holder are located, see Figure 1.
Figure 1 –the Product
Table 2 below describes functional elements and controls of the Product.
Table 2 –Functional elements, controls and LED light indicators of the Product
№
Element
Type, size, identifi-
er
Description
1
Fuse holder
–
To install a fuse (against SC)
2
Piano type switch
“ON/OFF”
To switch the Product on/off
3
Cable gland
MG-16
To connect power supply and loads
4
Grounding stud
М4х16
Main grounding element
Note –See positions (№) in Figure 1.