Eltek Valere PSC312-220/24-50 User manual

DC/DC Converter
PSC312-220/24-50
Art.-No. 201-012-748.220
USER MANUAL
UM_PSC312_220_24_21TE_E_R1.0

DC/DC converter
PSC312-220/24-50
User Manual
Page 2 (16)
ELTEK VALERE ©2009 UM_PSC312_220_24_21TE_E_R1.0
Notes to this manual
ATTENTION! Read this manual carefully before installing and commissioning the specified module.
This manual is a part of the delivered module. Familiarity with the contents of this manual is required for
installing and operating the specified module.
The rules for prevention of accidents for the specific country and the general safety rules in accordance
with IEC 364 must be observed.
The function description in this manual corresponds to the date of publishing.
Technical changes and changes in form and content can be made at any time by the manufacturer
without notice. There are no obligations to update the manual continually.
The module is manufactured in accordance with applicable DIN and VDE standards such as VDE 0106
(part 100) and VDE 0100 (part 410). The CE marking on the module confirms compliance with EU
standards 2006-95-EG (low voltage) and 89/339 EWG (electromagnetic compatibility) if the installation
and operation instructions are followed.
Supplier:
ELTEK VALERE INDUSTRIAL GmbH
Schillerstraße 16
D-32052 Herford
+ 49 (0) 5221 1708-210
FAX + 49 (0) 5221 1708-222
Email [e-mail]
Internet http://www.eltekvalere-industrial.com
©Copyright ELTEK VALERE INDUSTRIAL 2009. All rights reserved.

DC/DC converter
PSC312-220/24-50
User Manual
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ELTEK VALERE ©2009 UM_PSC312_220_24_21TE_E_R1.0
The current revision status of this user manual:
Revision: 1.0
Date: 2009-02-24
Revision Description of change Writer Date
1.0 First edition on the basis of the German manual
“UM_PSC312_220_24_21TE_G_R1.0” RTH 2009-02-24

DC/DC converter
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User Manual
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ELTEK VALERE ©2009 UM_PSC312_220_24_21TE_E_R1.0
Table of contents
1. Safety Instructions and Waste Disposal Rules ........................................................................5
2. General Information ........................................................................................................................6
3. Type Range/Equipment.................................................................................................................6
3.1 Main Data .....................................................................................................................................................................6
3.2 Available Options and Assembly Equipment.......................................................................................................7
3.3 Front view/Front side LED panel ............................................................................................................................7
3.4 Rear Side Connection ................................................................................................................................................8
3.5 Cooling and Air Flow Direction.................................................................................................................................9
3.6 Communication Interface.........................................................................................................................................9
4. Handling .......................................................................................................................................... 10
4.1 Storage ...................................................................................................................................................................... 10
4.2 Commissioning......................................................................................................................................................... 10
4.3 Charge Characteristic Curve ................................................................................................................................11
4.4 LED Indications......................................................................................................................................................... 11
4.5 Monitoring ................................................................................................................................................................. 12
4.6 Threshold/Default Value Adjustment................................................................................................................ 12
5. Maintenance .................................................................................................................................. 13
6. Troubleshooting............................................................................................................................ 13
7. Technical Specifications ............................................................................................................. 14
7.1 Dimensional Drawings............................................................................................................................................ 15
Index of figures
Figure 1) Sub rack fully equipped with four converters PSC...................................................................................7
Figure 2) Front view............................................................................................................................................................7
Figure 3) Male connectors.................................................................................................................................................8
Figure 5) Air flow..................................................................................................................................................................9
Figure 7) Module dimensions ......................................................................................................................................... 15

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ELTEK VALERE ©2009 UM_PSC312_220_24_21TE_E_R1.0
1. Safety Instructions and Waste Disposal Rules
Warning!
Because several components of operating electrical modules are charged by dangerous voltage, the
improper handling of electrical modules may be the cause of accidents involving electrocution, injury, or
material damages.
•Operation and maintenance of electrical modules must be performed by qualified skilled
personnel such as electricians in accordance with EN 50110-1 or IEC 60950.
•Install the module only in areas with limited access to unskilled personnel.
•Before starting work, the electrical module must be disconnected from mains. Make sure that
the module is earthed.
•Do not touch connector pins as they can be charged with dangerous voltage up to 30 seconds
after disconnection.
•Only spare parts approved by the manufacturer must be used.
All electric modules must be disposed of separate from domestic waste at collecting points that have
been set up by the government or municipal authority.
“Separate collection is the precondition to ensure specific treatment and recycling of WEEE and is
necessary to achieve the chosen level of protection of human health and the environment in the
Community.”
The above statement from EU directive 2002/96/EC applies to all electric modules installed within EU
countries.
In countries outside the EU, different rules may apply regarding waste disposal of electric modules.
For more information about waste disposal of your discarded equipment, contact your
ELTEK VALERE INDUSTRIAL partner.

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ELTEK VALERE ©2009 UM_PSC312_220_24_21TE_E_R1.0
2. General Information
The DC/DC converter PSC312 converts DC input voltage in an electrically isolated DC output voltage.
The PSC312 is a hot plug-in module with rear side connectors. It is designed to be mounted in an
assembly set 19’’ sub rack (see section 3.2). Due to the state-of-the-art circuitry design, the unit has
very low losses and therefore very compact dimensions, low weight and high power density.
The DC/DC converter PSC312 can be used as constant voltage source in all DC applications.
The nominal output power per unit is 1200 W. Several modules can be switched in parallel to increase
the system output power or to build redundant power supply systems (n + 1-principle).
3. Type Range/Equipment
Type Designation Material Code Nominal Output Voltage Nominal Output Current
PSC312-220/24-50 201-012-748.220 24VDC 50ADC
3.1 Main Data
Nominal input voltage: 220VDC
Nominal input current: 6.2ADC
Nominal output power: 1200W
For more specific data, see Section 7.

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3.2 Available Options and Assembly Equipment
Designation Material Code
Assembly set 19’’ sub rack 3U incl. backplane for four DC/DC converters
PSC312/320 202-320-408.00
Cover plate (with handle) to cover empty slots, 1/4 x 19’’, 3U;
Colour: RAL 7035 881-MEC-BPL.03.21.B
Figure 1) Sub rack fully equipped with four converters PSC
3.3 Front view/Front side LED panel
The PSC312 is equipped with the
following four LED indicators:
•INPUT OK
•OUTPUT OK
•Vout>
•ALARM
For more information about the LED indicators,
see section 4.4
Two captive screws are used for each module to
secure it to the sub rack (components of the
module)
Figure 2) Front view

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3.4 Rear Side Connection
The rear side male connections (DC input voltage, DC output voltage and signals) are shown in figure 3)
and are defined in the table below.
Figure 3) Male connectors (shown from the rear side of the module)
Pin assignment of the rear side connector
Pin Function
2b - (Minus) DC input
5b + (Plus) DC input
8b - - -
11b PE
13a CAN - CVSS
13c (-) output voltage sense link
14a CAN - H
14c CAN - L
15a - - -
15c CAN - CVCC
16a AGND
16c - - -
17a Hardwarecoding CODE2
17c Hardwarecoding CODE1
18a Collective Alarm NC
18c Collective Alarm COM
19a Collective Alarm NO
19c - - -
20a - - -
20c (+) output voltage sense link
22b (-) Output
25b (-) Output
28b (+) Output
31b (+) Output

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3.5 Cooling and Air Flow Direction
The unit is cooled with an internal fan. The airflow is from the front to rear side. The fan is monitored and
speed controlled dependent on module temperature. To provide sufficient air flow, a minimum space
(see item A in figure 5) of 50 mm is required between the unit and the rear cabinet wall as well as an
unobstructed supply of air to the front of the module.
Figure 5) Air flow
3.6 Communication Interface
The DC/DC converter PSC312 is fitted with a serial data interface in accordance with the Controller Area
Network (CAN) specification. The CAN-Bus connection is integrated in the rear side connector.
Several modules in a system or parallel connection can be monitored through the CAN-Bus by a central
UPC3 DC controller unit.
The following parameters of a specific rectifier unit can be monitored:
•Output voltage
•Output current
•Device temperature
•Device status

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4. Handling
4.1 Storage
Modules must be stored in a dry, dust free environment with a storage temperature in accordance with
the specific technical data (see section 7).
4.2 Commissioning
Note: Before commissioning the module, make sure that the input voltage corresponds to the input
voltage range of the unit as specified on the type plate and that the output voltage of paralleled units
matches.
1. Carefully unpack the unit
2. Fill the rack beginning with the left slot.
3. Put the unit into an empty slot.
4. Carefully slide in the unit until the module connector touched the backplane connector.
5. Increase the force until the unit fits in completely. Avoid using too much force. If the unit does not
fit in, begin again at step 3.
6. Secure the module using the two captive screws (M3x12) provided with the module.
Note: The PSC312 is serially equipped with an internal output side decoupling diode. This ensures
hot plug-in capability for the module and enables the operator to add modules under operating
conditions.
Note: Before removal of a module it must be switched off by the external input fuse!
CAUTION!
After switching off the module the internal capacitors are still fully charged. Do not touch connector
pins as they can still be charged with dangerous voltage after disconnection.

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4.3 Charge Characteristic Curve
The charge characteristic of the PSC312 is a power limited IV characteristic curve in accordance with
DIN 41772/DIN 41773.
For modules in parallel operation mode a load distribution of about ±10% is attained due to a sloping
output voltage line (-1% at 100% Inom).
The module is continuous short circuit proof.
4.4 LED Indications
Functions of front panel LED indicators
LED Colour Function
green INPUT OK - Input voltage okay
(criteria: 184VDC ≤Vinom ≤275VDC)
green OUTPUT OK - Vout ok (criteria: Vout ≥85% of adjusted value)*
red Vout > (criteria: Vout ≥ than adjusted operating threshold)*
red ALARM - Collective alarm**: Vin incorrect, Vout incorrect, module
overtemperature, fan failure and short circuit
*For factory setting of the output voltage threshold values, see section 4.6
**The module is equipped with an isolated signalling contact (normally open contact).
The maximum load is 60VDC/500mA. The contact is time-delayed and reacts after approx. 10 sec.

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4.5 Monitoring
Monitored values Criteria Function
DC input voltage I.) Input voltage 184V≤ Vinom ≤ 275V
II.) Input voltage <175V
III.) Input voltage >281V
I.) If the values are exceeded/fallen
below, it is shown at “collective alarm”;
the green LED “Input ok” is off.
II.) The module automatically switches
off. It switches on at 184V.
III.) At Vi>281V the module
automatically switches off (self
locking).
DC output voltage Output voltage higher than the
adjusted operating threshold*
The module automatically switches off
(self locking). The unit must be manually
restarted.
Module
temperature
Heat sink temperature ≥80°C The module automatically switches off.
It automatically switches on when the
heat sink cools down to ≤70°C.
From 70°C to 80°C the output power
linearly decreases from 1200W to
200W.
Cooling fan Cooling fan malfunction The module automatically switches off.
Short circuit Module automatically detects short
circuit operation with the output
voltage value. (criteria: Vout ≤20V and
Io> Ionom/5)
The module automatically switches off
after five seconds. After 30 seconds
the module automatically tries to
restart repeatedly.
*For factory settings of the output voltage threshold values, see section 4.6
4.6 Threshold/Default Value Adjustment
The following threshold/default values (factory settings) are stored in the PSC312:
Default 24V version
Vo (VDC) 24.0
V> (VDC) 30.0
V< (VDC) 20.1
Iconst (ADC) 50.0

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5. Maintenance
In general, the module is maintenance-free.
A yearly inspection with following checks is recommended:
•Optical/mechanical inspection
•Proper fan function
•Removal of dust and dirt, especially on radiator surfaces
•Check for internal dust or humidity
Attention! Dust combined with moisture or water may influence or destroy the internal electronic
circuits.
Dust inside the unit can be blown out with dry compressed air.
The interval between the checks depends on ambient conditions of the installed module.
6. Troubleshooting
Symptom Possible reason Corrective action
Is input voltage present? Check
Input switched to “ON” position? Check
PSC312 module plugged in securely? Check
Incorrect polarity or short circuit at the output? Check
No output
voltage
LED V> on? 1.) Switch the module off and on.
2.) Check the settings for
V> (see section 4.6).
Is the unit operating in current limiting mode
due to overload?
Reduce the load
Deviation of the
output voltage
If an external sensor lead is used for the output
voltage, is the connection faultless?
Check
If the module still does not work even though all checks have been done, contact your sales agent or the
ELTEK VALERE INDUSTRIAL service department.

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7. Technical Specifications
Type designation PSC312-220/24-50
Material code 201-020-758.220
DC input:
Nominal input voltage 220VDC ±20% (input voltage range: 184-275VDC)
Nominal input current 6.2ADC
Total harmonic distortion (THD) <5%
Efficiency ≥88%
Internal input fusing 16A (6.3 x 32mm)
DC output:
Nominal output voltage 24VDC
Nominal output current 50ADC (@ 24V)
Nominal output power 1200W
Charge characteristic line IV characteristic according to DIN41772/DIN41773; power limited
Output voltage threshold V>
(factory setting)
30VDC
Adjustable output voltage
range
20.1 - 30VDC
Default value output voltage 24.0VDC
Voltage ripple / psophometric
acc. to CCITT-A
≤20mVpp/
≤ 1.2mV
Dynamic accuracy of the
charge voltage
<3% Vnom at load changes between 10%-90%-10% Inom;
transient time ≤1.5ms
Short circuit protection Continuous short circuit proof
Parallel operation Yes (max. 48 units with UPC3 DC controller unit);
current distribution ≤10% Inom; sloping output voltage line (-1% at 100% Inom)
Internal active low-loss
decoupling circuit
Yes, in positive output line
Internal output fuse 80A
Standard Features:
LED signalling Input OK (green), Vo OK (green), Vo> (red), Alarm (red)
Main processor 16Bit Fujitsu
Isolated signalling contact Collective alarm; maximum load: 60VDC/500mA
Communications interface CAN-Bus, proprietary protocol

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Environmental:
Ambient temperature Operation: -20°C to +55°C, storage: -40°C to +85°C
Climatic conditions according to IEC 721-3-3 class 3K3/3Z1/3B1/3C2/3S2/3M2
Max. installation altitude ≤ 1500m
Audible noise <45dBA
Mechanical:
Type of construction ¼ x 19’’, 3U
Cooling Fan cooling (temperature regulated; monitored)
Connector DC input, DC output and signals: DIN41612-M-connector
Dimensions (W/H/D) 106.3/133/326.5mm
Minimum installation depth 438 mm (in combination with an assembly set 19’’ sub rack)
Weight Approx. 3.9kg
Type of enclosure / Protection
class
IP20 (front panel) / 1
Colour (front panel) RAL 7035; black imprint
Compliances:
CE conformity yes
Compliance to safety
standards
EN60950-1; VDE0100 T410; VDE0110; EN50178; EN60146
Compliance to EMC standards EN55022/24 (ITE), class “A“; EN61000-4 T2-5
7.1 Dimensional Drawings
Figure 7) Module dimensions

Supplier:
ELTEK VALERE INDUSTRIAL GmbH
Schillerstraße 16
D-32052 Herford
+ 49 (0) 5221 1708-210
FAX + 49 (0) 5221 1708-222
Email [e-mail]
Internet http://www.eltekvalere-industrial.com
©Copyright ELTEK VALERE INDUSTRIAL 2009. All rights reserved.