MSA PS-103 User manual

v. 0.7
«NPK Morsvyazavtomatica» LLC
Power Supply unit
PS-103, PS-103-20
Operating manual
St. Petersburg

«NPK Morsvyazavtomatica»LLC Operating manual
Page 2
Table of contents
INTRODUCTION.........................................................................................................................3
1DESCRIPTION AND OPERATION OF THE PRODUCT...............................................4
1.1 Description............................................................................................................................4
1.2 Main technical specifications................................................................................................4
1.3 Operation of the Product.......................................................................................................4
1.4 Measurement tools, instruments and consumables...............................................................8
1.5 Marking and sealing..............................................................................................................9
1.6 Packaging..............................................................................................................................9
2USAGE OF THE PRODUCT................................................................................................9
2.1 Operational constraints..........................................................................................................9
2.2 Usage preparations..............................................................................................................10
2.3 Usage of the product ...........................................................................................................11
3TECHNICAL SERVICE......................................................................................................12
3.1 General description .............................................................................................................12
3.2 Safety features.....................................................................................................................12
3.3 Maintenance routine............................................................................................................12
3.4 Preservation.........................................................................................................................13
4CURRENT REPAIR OF THE PRODUCT........................................................................14
4.1 General description .............................................................................................................14
4.2 Safety features.....................................................................................................................14
4.3 Current repair of the Product...............................................................................................14
5STORAGE.............................................................................................................................15
6TRANSPORTATION...........................................................................................................16
7DISPOSAL.............................................................................................................................17
ANNEX A (MANDATORY) OUTLINE AND INSTALLATION DIMENSIONS OF THE
PRODUCT.............................................................................................................................18

«NPK Morsvyazavtomatica»LLC Operating manual
Page 3
INTRODUCTION
This operating manual (hereinafter referred to as OM) is intended to describe the
structure, operating principles, technical specifications and service of unregulated power
supply units PS-103 and PS-103-20 (hereinafter referred to as the Product, PSU).
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 with the PSU according to the applicable
regulations.
Terms and abbreviations:
PSU –power supply unit;
SC –short circuit;
OM –operating manual;
TS –technical service;
CL –check list;
SB –storage battery;
LFSG –large fine-pored silica gel granular.

«NPK Morsvyazavtomatica»LLC Operating manual
Page 4
1DESCRIPTION AND OPERATION OF THE PRODUCT
1.1 DESCRIPTION
The PSU is designed to operate with single phase AC mains, frequency
50 (60) Hz, voltage 220 V (110 V at option) and to provide unregulated power of 24V
DC for various shipboard and industrial equipment.
1.2 MAIN TECHNICAL SPECIFICATIONS
Technical specifications of PSU are represented in table 1.
Table 1 –Main technical specifications of the Product designs
Parameter
Value
PS-103
PS-103-20
Input voltage AC 50 (60) Hz, V
220 (110 at option) ± 10 %
Standby power from batteries, V DC
24
Output voltage, V DC
18…31
Rated load current, А
10
20
Rated power, W
output
190
400
consumed
240
450
Alarm output
«dry contact»
Normally closed
Normally opened
«dry contact»
Normally opened
Number of connected loads
3
4
Weight, kg
5, max
10, max
Protection degree
IP22
Operating temperature, °С
- 15…+ 55
Mounting type
wall
1.3 OPERATION OF THE PRODUCT
1.3.1 General information
The Product is produced in metal casing which has a special mount for mounting
on a vertical bulkhead. There is a piano type switch (to switch the power on / off) on the
casing side as well as main power LED which glows green if the switch is in ON position.

«NPK Morsvyazavtomatica»LLC Operating manual
Page 5
1.3.2 Controls and indication
The layout of the PSU’s key functional elements, controls and indication are rep-
resented in Figures 1, 2.
Figure 1 –Functional elements, controls and indication of
PS-103
Figure 2 –Functional elements, controls and indication of
PS-103-20

«NPK Morsvyazavtomatica»LLC Operating manual
Page 6
Description of the functional elements, controls and indication is represented in
table 2.
Table 2 –Description of the functional elements, controls and indication of the PSU
Tag
№
Element
Type, standard size, identifier
Description
1
Piano type switch
–
Piano type switch to turn power on
(off), with backlight
2
Ground stud
М5х20
Key element of the unit grounding
point
3
Air grille
–
Cooling of the unit
4
Cable gland
MG-16
Cable gland / input
5
MG-20
6
Fuse holder
FH-02
Protection of input mains from
overload and SC of the unit
Note –Tag №are shown in Figures 1, 2.
1.3.3 Connection of the Product
The main and standby power is supplied to PS-103 and PS-103-20 terminals;
standby power is supplied from backup power sources to provide uninterruptible opera-
tion of the equipment connected to the PSU (see figures 3, 4).
Caution! The PSU shall not be used to charge SB!
The closing or opening of dry contacts (depending on the connection type) occurs
in case of main power failure, that allows for using the PSU together with connected
alarm unit, AU-106 (AU-206) type, as a signaling unit of voltage loss in power mains or
PSU malfunction.
1.3.3.1 Connection of PSU PS-103
The connection diagram and description of connector terminals of PS-103 are rep-
resented in Figure 3 and in table 3. Pins 2 and 3 of connector ХS1 are closed if the main
power is available; if the main power fails, the pins are opened.
Pins 1 and 2 of connector ХS1 are opened if the main power is available; if the
main power fails, the pins are closed.

«NPK Morsvyazavtomatica»LLC Operating manual
Page 7
Figure 3 –Connection diagram of PS-103
Table 3 –Description of connector terminals of PS-103
Connector
Terminal №
Description
XS1
1
Alarm unit connection
2
3
XS5
1
+ 24 V DC (SB connection)
2
0 V
3
Ground connection
XS2
1
+ 24 V DC (to connect load №3)
2
0 V
3
Ground connection
XS3
1
+ 24 V DC (to connect load №2)
2
0 V
3
Ground connection
XS6
1
+ 24 V DC (to connect load №1)
2
0 V
3
Ground connection
XS8
1
110; 220 V, 50 Hz
2
Neutral wire connection
3
Ground connection

«NPK Morsvyazavtomatica»LLC Operating manual
Page 8
1.3.3.2 Connection of PSU PS-103-20
The connection diagram and description of connector terminals PS-103-20 are
represented in Figure 4 and in table 4. Pins 1 and 2 of connector Х9 are closed if the main
power is available; the pins are opened if the main power fails. Pin Х9 supplies power
from SB to the external signaling unit.
Figure 4 –Connection diagram of PS-103-20
Table 4 –Description of connector terminals PS-103-20
Connector
Terminal №
Description
X9
1
Alarm unit connection
2
3
4
X6
1
To connect load №4
2
3
SB connection
4
X5
1
To connect load №2
2
3
To connect load №3
4
X3
1
Main power connection 110; 220 V, 50 Hz
2
3
To connect load №1
4
1
Connection of load cable shield
2
3
4
1.4 MEASUREMENT TOOLS,INSTRUMENTS AND CONSUMABLES
Amount of consumables required for TS is represented in table 5.

«NPK Morsvyazavtomatica»LLC Operating manual
Page 9
Table 5 –Amount of consumables required for TS
Name and identifier of consumables
Amount of
consumables
Note
Main
Replacement
Cleaning cloth
Cleaning cloth
0.10 kg
To clean surfaces of the
unit
Rectified hydrolytic technical
ethyl alcohol
Technical ethyl alcohol
class А
0.01 l
1 To clean severe contami-
nation from surfaces of the
unit
2 To clean by rubbing sur-
faces with paint coating
damage
Varnish
АК-113
Varnish
АК-113Ф
0.05 kg
To cover surfaces of the
unit incase of paint coating
damage
Abrasive cloth
Abrasive cloth
0.06 х 0.06 m
To polish surfaces of the
unit incase of paint coating
damage
1.5 MARKING AND SEALING
The nameplates are located on the Product, where the user can find the name,
serial number, date of manufacturing, weight, protection degree, output voltage and out-
put power of the Product.
The sealing of the Product is not provided.
1.6 PACKAGING
At the time of delivery the Product is packed in a corrugated board box and inner pack-
aging ensuring its transportation and storage at the warehouse.
Transport packaging is also used as a returnable packaging for transportation of
the Product to the repair location and back.
The sealing of transport packaging is not provided.
2USAGE OF THE PRODUCT
2.1 OPERATIONAL CONSTRAINTS
The Product shall be installed only according to its outline dimensions.
Caution! Distance between the installation site and magnetic compass shall not
be less than 1 m

«NPK Morsvyazavtomatica»LLC Operating manual
Page 10
Select the installation site in compliance with operational constraints (operating
temperature and protection degree –IP).
2.2 USAGE PREPARATIONS
2.2.1 Safety features
While preparing the Product for operation, check it visually after unpacking; me-
chanical damage shall be absent.
Connection to power mains shall be provided only in compliance with input
power requirements.
Before connecting the Product shall be switched off and have a proper grounding.
While using the Product the staff shall follow “The technical rules for operation
of electric installation” and “Safety rules for operation of electric installation” while test-
ing electrical circuits and insulation resistance.
2.2.2 Visual check procedure
Before switching the units on, the staff shall:
–observe visually the cable integrity and initial position of the controls on the
front panels;
–check the absence of dust and dirt on the Product casing; clean with a soft cloth
if necessary;
–check that cable connectors are securely connected to the Product.
2.2.3 Directions for switching on
While connecting the PSU and preparing it for operation follow the steps below:
–transfer circuit breakers of main power and PSU on the power mains switch-
board to “OFF” position;
–connect deenergized cable of main power and SB to input terminals;
–transfer circuit breakers of main power and PSU on the power mains switch-
board to “ON” position;
–transfer a circuit breaker inside the Product casing to “ON” position (only for
PS-103-20);
–transfer a piano type switch to “ON” position;
–check that the Product is connected properly and main power is available by
green LED glowing on the piano type switch, located on the Product casing, dry contact
alarm shall be absent;