TDK-Lambda HFE2500 Series User manual

HFE2500 Series & HFE2500/S Series (Optional PMBus) Instruction Manual
HFE2500 SERIES SPECIFICATIONS: HFE2500-12/S HFE2500-24 /S HFE2500-48 /S
1 Rated output voltage V 12 24 48
2Output voltage set point V 12+/-1% 24+/-1% 48+/-1%
3 Output voltage range V 9.6~13.2 19.2~29.0 38.4~58
4 Rated Output Current at 180 < Vin ≤ 265Vac (*1) A 200 104 52
5Rated Output Current at 170 ≤ Vin ≤ 180Vac (*1) A 200 100 50
6Rated Output Current at 100 ≤ Vin ≤ 132Vac (*1) A 125 62.5 31.25
7Rated Output Current at 85V ≤Vin < 100Vac (*1) A Linear derating 1.3% per 1VAC from output current at 100VAC
8 Rated output power 180 < Vin ≤ 265Vac W 2400 2496 2496
9 Rated output power 170 ≤ Vin ≤ 180Vac W 2400
10 Rated output power 100 ≤ Vin ≤ 132Vac W 1500 1500 1500
11 Rated output power 85Vac ≤ Vin < 100Vac W Linear derating 1.3% per V
12 Input voltage / frequency range (*2) --- 85~265Vac continuous, 47~63Hz, Single phase
13 Maximum input current (*3) A 15/12A
14 Power Factor (Typ) (*3) --- >0.99/0.98 @ 115/230V and maximum output power
15 Efficiency at 75% rated load (Typ) (*3) % 90/92% 90/92% 91/93%
16 Efficiency at 100% rated load (Typ) (*3) % 89/91% 89/91% 90/92%
17 Inrush current (*4) A Less than 50A
18 Hold-up time (*13) mS ≥ 10mS typical at 115/230Vac input, rated output voltage and
less than 80% of rated load.
19 Maximum line regulation (*5) % 0.25%
20 Maximum load regulation (*6) % 0.50%
21 Output Ripple and noise P-P 0~+70°C (*7) mV 240 240 480
-10~0°C mV 360 360 780
22 Temperature stability % 0.05% of rated Vout for 8hrs after 30min warm-up. Constant
line,load and temperature.
23 Temperature coefficient PPM/°C +/-200
24 Remote sensing (*8) --- Possible. Refer to instruction manual.
25 Parallel operation (*9) --- Possible. Single wire current share, 5% accuracy of rated Iout, up
to 8 units
of the same voltage and the same current rating.
26 Series operation --- Possible (with external diodes), 2 units. Refer to instruction manual.
27 Over current protection 85 ≤ Vin ≤ 132Vac % Minimum 110% of rated output current.
170 ≤ Vin ≤ 265Vac 105~120% of rated output current.
28 Over voltage protection (*10) V Tracking OVP, range: 1.1xVout, accuracy: +/-3%
29 Over temperature protection --- Inverter shut down method, automatic reset.
30 Remote On/Off control --- Two complementary inputs. By electrical signal or dry contact.
Refer to instruction manual.
31 "DC OK" signal --- Tracking, On when Vout>90+/-5% of set output voltage.
Open collector signal. Max.sink current: 10mA
Refer to Instruction Manual.
32 Over-Temperature warning --- Refer to instruction manual. Open collector signal, Max. sink
current: 10mA.
33 "AC FAIL" signal --- On when 270Vac>Vin>85Vac. Open collector signal, Max. sink
current: 10mA.
34 Auxiliary power supply output (*3)
(*11) --- 11.2~12.5V, 0.5A. 240mVp-p ripple and noise.
35 Vout programming by external voltage ---
By 0~5V, equal to Vout min ~ Vout max. Refer to Instruction Manual.
36 Vout programming by external resistor --- By 1Kohm potentiometer . Refer to Instruction Manual.
37 OCP programming by external voltage --- By 0~5V. Refer to Instruction Manual.
38 Front panel indicators --- AC OK, DC OK/FAIL. Refer to Instruction Manual.
39 I²C Interface --- Optional, PMBus compatible. Refer to Instruction Manual.
40 Operating temperatue (*14) --- -10~70°C.
-10~50°C: 100% load. Derate 2%/°C, 50°C to 60°C, Derate
2.5%/°C, 60°C to 70°C.
41 Storage temperature --- -30~85°C
42 Operating humidity --- 10~90% RH, no condensation.
43 Storage humidity --- 10~95% RH, no condensation.
44 Cooling --- By internal Fans. Variable speed control by ambient temperature
and power level.
45 Vibration --- Built to meet IEC60068-2-64 (Basic Transportation)
46 Shock --- Built to meet IEC60068-2-27 (Basic Transportation)
47 Conducted emission --- Built to meet EN55022 Class B, FCC part 15 Class-B, VCCI Class-B
48 Radiated emission --- Built to meet EN55022 Class A, FCC part 15 Class-A, VCCI Class-A
49 Immunity ---
Built to meet IEC61000-4-2 (Level 2,3),
-3 (Level 2), -4 (Level 2), -5 (Level 3,4), -6 (Level 2), -8 (Level 4), -11
50 Applicable safety standards --- UL60950-1, EN60950-1
51 Withstand voltage --- Input-Output: 3000Vrms, 1min. Input-Ground: 2000Vrms, 1min.
Output - Ground: 500VAC 1min.
Output - Ground:
2250VDC 1min, (POE)
52 Insulation resistance --- More than 100Mohm at 25°C and 70% RH. Output-Ground: 500Vdc
53 Leakage current (*12) mA Less Than 0.75/1.5mA at 115/230Vac range
54 Weight (Typ) Kg Max 2.1
55 Size (W*H*D) --- 107x41x325mm Refer to Outline Drawing.
1

Fig-1 HFE2500 rated output Current and Voltage versus Line Voltage.
* Please refer to Output Power vs. Temp derating
Iout
200A
181.8A
125A
100A
91A
Vin
85Vac
100Vac
132Vac
170Vac
265Vac
9.6~12V
13.2V
HFE 1600-12
9.6~12V
13.2V
HFE 2500-12/S
Iout
104A
86A
62.5A
50A
42A
Vin
85Vac
100Vac
132Vac
170Vac
265Vac
19.2~24V
29V
HFE 1600-24
19.2~24V
29V
HFE 2500-24/S
Iout
52A
43A
31.25A
25A
21A
Vin
85Vac
100Vac
132Vac
170Vac
265Vac
38.4~48V
58V
HFE 1600-48
38.4~48V
58V
HFE 2500-48/S 2496W Max
1500W Max*
1200W Max*
*
2496W Max
1500W Max*
1200W Max*
*
1500W Max*
1200W Max*
2400W Max*
Notes:
*1 Refer to Fig. 1
*2 For cases where conformance to various safety standards (UL, EN etc.) is required, to be described as 100-240Vac (50/60Hz).
*3 At 115/230Vac, 25˚C ambient temperature.
*4 Not applicable for the noise filter inrush current less than 0.2mS.
*5 From 85~132Vac or 170~265Vac, constant load.
*6 From No-load to Rated load, constant input voltage. Measured at the sensing point in Remote sense.
*7 Measured with JEITA-RC9131A 1:1 probe with 4x270uF electrolytic capacitors and 1uF film capacitor on the output, 20MHz
B.W. When Power Supplies are installed in HFE2500-S1U shelf, measured with 1uF film capacitor on the output terminals of the
HFE2500-S1U.
*8 Voltage drop on load wires: HFE2500-12: 0.25V/wire, HFE2500-24: 0.5V/wire, HFE2500-48: 1V/wire.
*9 Accuracy applicable for load current > 50% of rated output current. Derate maximum output power by 5%.
*10 Inverter shut down method. Reset by AC voltage recycle or by On/Off control.
*11 Measured with JEITA-RC9131A 1:1 probe with 470uF electrolytic capacitor and 0.1uF film capacitor on the output, 20MHz B.W.
Capacitors are not required when the Power Supply is installed in HFE2500-S1U shelf.
*12 Measured according to UL,EN method at 60Hz Ta=25˚C
*13 Measured from input-off until the output voltage drops under 5% from the nominal voltage.
*14 Refer to Output Power vs temp derating figure A,B,C. (Pg. 3)
2

Output Power vs. Temp derating
Pout
1500W
1350W
1 00W
Vin
85Vac
All Output Voltages
Fig A. Output Power at temp -10~50°C.
Pout
Vin
85Vac 100Vac 132Vac 170Vac 265Vac
All Output Voltages
Pout
Vin
85Vac 100Vac 132Vac 170Vac 265Vac
All Output Voltages
100Vac 132Vac 170Vac 265Vac
HFE 2500 Series
HFE 2500 Series
HFE2500 Series
Fig B. Output Power derating at temp 60°C.
Fig C. Output Power derating at temp 70°C.
2500W
2
2000W
1200W
1080W
960W
1500W
900W
810W
720W
3

HFE 2500 Series Outline Drawing
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           
 
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 
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
PI N No. FUNCTION P IN No. FUNCTION
A1~A10 -VO B14 A1
A11~20 +VO B15 DC_OK
B1 SIGNAL_RTN B16 A0 B2 PS_EXIST B17 SDA
B3 +12V_AUX_OUT B18 TEMP_ALM_SR B4 -SENSE B19 V_REF_EXT B5 A2 B20 SMB_ALERT B6 CS B21 AC_FAIL_OUT B7 ENABLE B22 5V_Trim B8 V_PROG B23 NC B9 +SENSE_IN B24 NC
B10 A3 C1 GND
B11 I_PROG C2 NEUTRAL B12 INHIBIT C3 LINE B13 SCL
4

REAR PANEL IN/OUT CONNECTOR PINS FUNCTION DESCRIPTION
Pin # Function Description Referenced to
A1 ~ A10 -V Main Negative Output Voltage
A11 ~ A20 +V Main Positive Output Voltage
B1 SIGNAL RETURN
Return for the following control signals: ENABLE, INHIBIT;
supervisory signals TEMP ALARM, AC FAIL, AUX, DC OK, PS EXIST;
and PMBus signals: SCL, SDA, SMB ALERT;
SIGNAL RETURN and mentioned signals are isolated from the output
terminals and -SENSE.
SIGNAL RETURN
B2 PS EXIST Indicates that Power Supply module is inserted into the shelf. "Active
Low" when connected to SIGNAL RETURN. SIGNAL RETURN
B3 +12V AUX OUT
11.2~12.5V Auxiliary Voltage Output referenced to SIGNAL RETURN. The
maximum load current is 0.5A. This output has a built in ORing diode, and
is not affected by the INHIBIT /ENABLE signal or any other fault.
SIGNAL RETURN
B4 -SENSE Negative sense, The -SENSE signal should be connected to -V on
Power Supply, or Load side. -SENSE
B5,B10,B14,B16 A2,A3,A1,A0 (optional
PMBus) PMBus Address lines. Refer to the PMBus interface description HFE Instruction Manual Chapter 3. -SENSE
B6 CURRENT SHARE Current sharing signal should be connected when Power Supplies are connected in parallel to allow accurate current share between units in
Parallel operation. -SENSE
B7 (short pin) ENABLE
Turns ON the main output by electrical signal or dry contact (0~0.6v or short). SIGNAL RETURN
B8 VOLTAGE PROGRAMMING Input (0~5V) referenced to –S. Provides Vout programming by Voltage.
Refer to Instruction Manual Chapter 1.5,1.6 & 1.7 -SENSE
B9 +SENSE Positive sense. The +SENSE signal should be connected to +V on
Power Supply, or Load side. -SENSE
B11 CURRENT PROGRAMMING
Input (0~5V) Refferenced to -S. provides Iout programming by voltage .
Reffer to Instruction manual Chapter 1.8, 1.8.1
& 1.8.2
B12 INHIBIT Turns OFF the main output by electrical signal or dry contact (0~0.6v or short). SIGNAL RETURN
B13 SCL
(optional PMBus)
Serial Clock signal.
Refer to the PMBus interface description HFE Instruction Manual Chapter 3.
SIGNAL RETURN
B15 DC OK DC OK signal. LOW when the output voltage is higher than 85~95% of
set Vout. Open collector type (15V, 10mA). SIGNAL RETURN
B17 SDA
(optional PMBus)
Serial Data signal.
Refer to the PMBus interface description HFE Instruction Manual Chapter 3.
SIGNAL RETURN
B18 TEMP ALARM TEMP ALARM signal. LOW when the internal temperature is within safe limit, HIGH approx. 10°C below Thermal shut down. Open collector
type (15V, 10mA). SIGNAL RETURN
B19 V_REF Variable output for Voltage/Current programming with PMBus option.
Refer to Instruction Manual Chapter 3. -SENSE
B20 SMB ALERT
(optional PMBus)
PMBus INTERRUPT signal.
Refer to the PMBus interface description HFE Instruction Manual Chapter 3.
SIGNAL RETURN
B21 AC FAIL Output AC FAIL, LOW when the input voltage is 85Vac<Vin<270Vac, HIGH when the input voltage is 85Vac>Vin or Vin>270Vac. Open col-
lector type (15V, 10mA). SIGNAL RETURN
B22 5V_TRIM 5V fixed output, 5mA Refer to Instruction Manual -SENSE
B23, B24 NOT CONNECTED
C1 (long pin) PROTECTIVE
GROUND AC GROUND connection. Refer to safety instructions for safety standards requirements
C2 (long pin) AC
NEUTRAL
AC NEUTRAL refer to safety instructions for safety standards requirements
C3 (long pin) AC
LINE
AC LINE refer to safety instructions for safety standards requirements.
REAR CONNECTOR PIN ALLOCATION CHART
IN/OUTPUT CONNECTOR POSITRONIC P/N: PCIH47M400A1/AA
5

12
FRONT PANEL INDICATORS
1. DC OK – LED indicator:
GREEN when Output Voltage is above 90% ± 5% of set Output Voltage.
RED when Output Voltage falls below 90% ± 5% of set Output Voltage.
2. AC OK – LED indicator:
GREEN when Input Voltage is 85Vac<Vin<270Vac.
OFF when the Input Voltage is 85Vac>Vin or Vin>270Vac.
CAUTION : When inserting a power supply into the rack, do not use unnecessary force;
slamming the power supply into the rack can damage the connectors on the rear of the supply and inside the rack.
6

SAFETY APPROVALS
UL 60950-1 and CSA22.2 No.60950-1 - UL Recognized. C-UL for Canada.
IEC 60950-1 - CB Report and Certificate.
EN 60950-1 - CE mark.
Marking by the CE Symbol indicates compliance to the Low Voltage Directive of the European Union.
A“Declaration of Conformity” in accordance with the preceding directives and standards has been made and is on file at our EU
representative TDK LAMBDA UK, located at Kingsley Avenue, Ilfracombe, Devon EX34 8ES, UK.
A“Declaration of Conformity” may be accessed via company website www.uk.tdk-lambda.com/technical-data
SAFETY INSTRUCTIONS
CAUTION: The following safety precaution must be observed during all phases of operation, service and repair of this equipment.
Failure to comply with the safety precautions or warnings in this document violates safety standards of design, manufacture and
intended use of this equipment and may impair the built-in protections within. TDK Lambda shall not be liable for user’s failure to
comply with these requirements.
Vorsicht
Die folgenden Sicherheitsvorschriften müssen vor Inbetriebnahme und in jedem Betriebszustand bei Service oder Reparatur
beachtet werden. Missachtung der Sicherheitsvorschriften und Warnhinweise aus diesem Handbuch führen zur Verletzung
der bestehenden Sicherheitsstandards. Bei Betrieb des Gerätes ausserhalb dem bestimmungsgemässen Einsatz können die im
Gerät integrierten Schutzfunktionen beeinträchtigt werden. TDK-Lambda ist nicht haftbar für Schäden, die durch Missachtung
dieser Sicherheitsvorschriften entstehen können.
CAUTION: HFE2500-xy units are not authorized for use as critical component in nuclear control systems, life support systems or
equipment for use in hazardous environments without the express written approval of the managing director of TDK-Lambda.
Vorsicht
Dieses Produkt ist nicht für die Verwendung als kritische Komponente in nuklearen Steuerungssystemen, lebenserhaltenden
Systemen oder Geräte für den Einsatz in gefährlichen Umgebungen, ohne die ausdrückliche schriftliche Genehmigung durch
TDK-Lambda zugelassen
POWER SYSTEM, OVERVOLTAGE CATEGORY & ENVIRONMENTAL CONDITIONS
The HFE2500-xy units have been evaluated for using in TT and IT (230VAC line - to - line) power systems.
The HFE2500-xy units have been evaluated to Overvoltage category II.
The HFE2500-xy units intended for use in the following operation conditions:
* Indoor use * Pollution degree 2 * Max. operational altitude: 3000m above sea level
*Ambient temperature: -10°C-50°C at 100% load, up to 70°C with output de-rating applied (refer to Specification above).
GROUNDING
HFE2500-xy units are Class I product. To minimize electrical shock hazard, the HFE2500-xy units must be connected to an electrical
ground. The instruments must be connected to the AC power supply mains through a three conductor power cable, with the
ground wire firmly connected to an electrical ground (safety ground) at the power outlet. For instruments designed to be hard-
wired to the supply mains, the protective earth terminal must be connected to the safety electrical ground before any other
connection is made. Any interruption of the protective ground conductor or disconnection of the protective earth terminal will
cause a potential shock hazard that might cause personal injury.
Erdungskonzept
Dieses Produkt ist ein Gerät der Schutzklasse 1. Zur Vermeidung von gefährlichen Energieinhalten und Spannungen, ist das
Gehäuse an eine Schutzerde anzuschliessen. Der PE-Anschluss ist an einen festen Erder anzuschliessen. Bei Festverdrahtung des
Gerätes ist sicherzustellen, dass der PE Anschluss als erstes angeklemmt wird. Jede mögliche Unterbrechung des PE-Leiters oder
Trennung der PE Verbindung kann einen möglichen elektrischen Schlag hervorrufen, der Personenschäden zur Folge hätte.
LIVE CIRCUITS
Operating personnel must not remove the HFE2500-xy unit cover.
No internal adjustment or component replacement is allowed by non-TDK Lambda qualified service personnel. Never replace
components with power cable connected. To avoid injuries, always disconnect power, discharge circuits and remove external
voltage sources before touching components.
Restricted Access Area: HFE2500-xy units should only be installed in a Restricted Access Area. Access should be available to service personnel only.
Spannungsführende Teile
Die Geräteabdeckung darf nicht durch Endanwender geöffnet werden. Interne Modifikationen, sowie Bauteileaustausch
ist nur durch TDK-Lambda qualifiziertes Personal erlaubt. Vor Austausch von Bauteilen ist das Netzkabel bzw. die
Versorgungsspannung zu trennen. Energieversorgungsanschlüsse sind immer zu trennen, um Personenschäden durch
gefährliche Energieinhalte und Spannungen auszuschliessen. Die Stromkreise sind zu entladen, externe Spannungsquellen
sind zu entfernen, bevor auf Bauteile bzw. Komponenten Ebene gearbeitet wird.
7

VORSICHT Spannungsführende Teile-Gefahr durch elektrischen Schlag bzw. Energieinhalte.
Handbuch-Symbol. Das Gerät bzw. Geräteteile warden mit diesem Symbol gekennzeichnet, wenn es für den
Benutzer notwendig ist, sich auf die Anweisungen im Handbuch zu beziehen.
Zeigt“spannungsführende Teile”mit gefährlicher Spannung an.
Dieses Symbol weist auf das Vorhandensein einer heißen Oberfläche oder Komponente. Das Berühren
dieser Oberfläche kann zu Verletzungen führen.
Zeigt Masse-Anschluss an, keine Schutzerde. ( z.B .Masseanschluss an einen Verbraucher).
Schutzleiter-Anschlussklemme.
WARNUNG Dieser Warnhinweis beschreibt Gefahren, deren Nichteinhaltung zu Personenschäden führen können. Die
Warnhinweise müssen daher zwingend wie im Handbuch beschrieben in der Applikation eingehalten
werden.
ACHTUNG
Diese Sicherheitsinformation weist auf Gefahren im täglichen Umgang mit dem Gerät hin, deren
Missachtung zu Fehlfunktionen oder Defekten in deer Applikation führen können. Bitte lesen Sie diese
Sicherheitsinformationen , bevor Sie das Gerät einbauen oder in Betrieb nehmen.
PARTS SUBSTITUTIONS & MODIFICATIONS
Parts substitutions and modifications are authorized TDK Lambda service personnel only. For repairs or modifications, the
instrument must be returned to TDK Lambda service facility.
AC INPUT
Do not connect HFE2500-xv unit to mains supply exceeding the input voltage and frequency rating. The input voltage and
frequency rating is: 100-240V~, 50/60Hz. For safety reasons, the mains supply voltage fluctuations should not exceed ±10% of
nominal voltage.
HEAT HAZARD
WARNING: Top, bottom and side surfaces may become hot when operating the unit continuously. To reduce the risk of injury from a
hot surface, allow the surface to cool before touching.
Heisse Oberflächen
WARNUNG: Im Dauerbetrieb erwärmen sich die Gehäuseoberflächen. Um das Verletzungs-Risiko durch heisse Oberflächen zu
minimieren, sollte das Gerät einige Zeit abkühlen können, bevor weitere Arbeiten durchgeführt werden.
ENERGY HAZARD
The main output of HFE2500-xy units is capable of providing hazardous energy. Due to hazardous energy level the output and
connections therefore must not be user accessible. Manufacturer’s final equipment must provide protection to service personnel
against inadvertent contact with output bus bars.
FUSE
Internal fuse is sized for fault protection and if a fuse was opened it would indicate that service is required. Fuse replacement
should be made by qualified technical personnel.
HFE2500-xy unit fuse rating is described below. F101: F25A H 250Vac
SICHERUNGEN
Vor Anschluss an die Netzversorgung ist die Aufstellanleitung zu beachten!
1. Absicherung: F101: F25A H 250VAC
2. Die Gehäuseabdeckung darf nur im stromlosen Zustand geöffnet werden.
ACHTUNG: Sicherungen dürfen nur durch geschulte Service Personen getauscht werden.
OVERCURRENT PROTECTION:
A readily accessible branch circuit over-current protective device rated 30A max. must be incorporated in the building wiring.
The protective device must be disconnect both supply line simultaneously
Überstromschutz
Eine leicht zugängliche Vorsicherung mit 30A max.. pro Eingang muss in der Hausinstallation vorgesehen werden
SYMBOLS
8

ATTENTION: Power supplies are factory programmed to the rated output voltage.
For applications requiring lower / higher voltage power supplies should be adjusted to the required voltage
befor connection to the load.
1. SINGLE UNIT OPERATION
1.1 Basic configuration (Local Sense)
For basic configuration:
•± SENSE have to be connected to the HFE2500 ±V terminals prior to operating the supply.
•ENABLE input must be connected to SIGNAL RETURN in order for the supply to turn on.
1.2 Basic configuration (Remote Sense)
For basic configuration:
•± SENSE have to be connected to the ±V terminals on the Load side prior to operating the supply.
•ENABLE input must be connected to SIGNAL RETURN in order for the supply to turn on.
ATTENTION: 1. Maximum voltage drop on load connection: HFE2500-12: 0.25V/wire, HFE2500-24: 0.5V/wire, HFE2500-48: 1V/wire.
2. Twisted wires should be used for Remote Sensing connection.
3. If Remote Sensing is used, do not break Main Output connection.
1.3 ON/OFF control by ENABLE
Switch closed: Output ON
Switch open: Output OFF
Fig-1.2
Fig-1.1
SIGNAL RETURN and ENABLE control are isolated from the output terminals and“-SENSE”.
Fig-1.3
9

Fig-1.4
1.4 ON/OFF control by INHIBIT
Power Supply operation requires the "ENABLE" signal to be connected to "Signal Return".
Logic of the "INHIBIT" signal is reversed to logic of the "ENABLE" signal.
SIGNAL RETURN, INHIBIT and ENABLE controls are isolated from the output terminals and -SENSE.
1.5 OUTPUT VOLTAGE PROGRAMMING by External Potentiometer (Not applicable to supplies with PMBUS option).
Output Voltage of HFE2500 Series can be trimmed by potentiometer between approximately 80%-120% for 24V, 48V
and 80%-110% for 12V of nominal output voltage (For Output voltage limits see Graph below).
1.6. OUTPUT VOLTAGE PROGRAMMING by External Voltage.
Output Voltage of HFE2500 Series can be programmed by external voltage source between approximately 80%-120% for 24V, 48V
and 80%-110% for 12V of nominal output voltage (For Output voltage limits see Graph enclosed).
Voltage Trimm ing by potentiometer
58
38.4
48
29
24
19.2
13.2
12
9.6
0
10
20
30
40
50
60
00.5 1
B8. Viper position
V OUT (V)
HFE2500-48
HFE2500-24
Voltage Programming
0
10
20
30
40
50
60
012345
V PROG (V)
V OUT (V)
38.4
19.2
9.6
58
29
13.2
HFE2500-12
Fig-1.5
Fig-1.6
HFE2500-12
HFE2500-24
HFE2500-48
1.7 OUTPUT VOLTAGE PROGRAMMING by PMBus (optional).
Output Voltage of HFE2500 Series can be programmed by PMBus between approximately 80%-120% for 24V, 48V
and 80%-110% for 12V of nominal output voltage (for limits see HFE2500 series specifications line 3).
For section 1.5, 1.6 and 1.7, current programming pin (B11) must not be left open.
Fig-1.7
10

1.9 SUPERVISORY SIGNALS (Typical Connection)
The following supervisory signals are accessible:
•DC OK
•AC FAIL
•PS EXIST
•TEMP ALARM
Fig-1.9
Open collector signals are shunted by internal 24V zener
1.8 OVER CURRENT PROGRAMMING by External Voltage
Over Current Protection (OCP) can be programmed by external voltage source 0~5V. Nominal OCP value is achieved by connecting to internal
5V source (V_REF, B19) or to external voltage source. By changing the Current Programming Voltage OCP level could be decreased down to
~40% of Nominal Output Current.
1.8.1 CURRENT PROGRAMMING By PMBUS (Optional)
Over Current Protection (OCP) can be programmed by PMBUS with a range of 50% ~ 110% of Nominal Output Current.
ATTENTION: If PMBus is used for current programming, the Reference voltage will not be fixed to 5V but variable.
Fig-1.8
B22
B11
HFE2500
+5V_TRIM
CURRENT PROG
Fig-1.8.1 Fig-1.8.2
SIGNAL RETURN and mentioned signals are isolated from the output terminals and -SENSE.
These signals are Open Collector type (max 15V, max 10mA), isolated from Output and referenced to“SIGNAL RETURN”.
Fig-1.9.1
1.8.2 OUTPUT CURRENT PROGRAMMING by External
Potentiometer (Not Applicable to supplies with PMBus Option).
11

2. POWER SUPPLIES CONNECTION
2.1. PARALLEL OPERATION
•Up to 8 x HFE2500 units with the same rating (voltage
and current) can be used in parallel to increase the output
current.
•By connecting the CS signal between the paralleled units,
automatic current balance is achieved with accuracy of
Accuracy ±10%: 20% ≤ Iout < 50% of max Iout.
Up to 10 units
Accuracy ±5%: Iout ≥ 50% of max Iout.
Up to 10 units
•Derate the total output current by 5% when using parallel
operation to prevent unit overload condition.
•The built-in ORing MOSFETs on the main output and the
12V Auxiliary output allow N+1 operation.
•If Voltage programming is used,“Voltage Programming” Pin
of all units must be connected in parallel.
•Referenced to “SIGNAL RETURN”(floating from the output)
controls/signals and +12V AUX can be connected in
parallel.
•ENABLE of all supplies can be connected to a single switch.
For PMBus option.
•If voltage programming is done with PMBus, Voltage
Programming and V_REF of all units must be connected in
parallel.
•Connect PMBus Signals in parallel (PMBUS is isolated from
output) and choose different address for each unit.
•If Current Programming is done with PMBUS, Current
Programming and V_REF of all units must be connected in
parallel.
Fig-2.1
12

2.2 SERIES OPERATION
•Up to 2 units with the same rating (voltage and current) can be used in series to increase the output voltage.
•Connect Main Outputs in series (as shown).
•Diodes should be connected in parallel with each unit output to prevent reverse voltage. Each diode should be rated to at least
the power supply rated output voltage and output current.
•Connect as shown : +Sense of positive unit and –Sense of negative unit (twisted pair) to Load point, or to +V and –V accordingly
for Local Sense.
•In case PMBus is used Connect PMBus signals in parallel (PMBus is isolated from Output), and choose different Address for each
unit (see chapter 3).
•Output Voltage can be adjusted independently for each unit.
•Controls Monitoring signals and +12V AUX are referenced to “SIGNAL RETURN”and may be connected in parallel.
Fig 2.2 HFE2500 series connection (remote sense configuration)
*Diodes rated to at least Vout max and lout max
are supplied by user
13

HFE2500 SERIES I2C SPECIFICATIONS:
FEATURES:
Output voltage measurement.
Output voltage programming.
Output current measurement.
Internal ambient temperature measurement.
Product information
Status information
SMBus alert
Clock frequency: 100KHz
Address lines: 4
1. OUTPUT VOLTAGE MEASUREMENT HFE2500-12/S HFE2500-24/S HFE2500-48/S
1.1 Measurement accuracy -+/-2% of full scale. Refer to instruction manual
1.2 Measurement resolution -10 bits
1.3 Measurement range V0~15 0~30 0~60
2. OUTPUT VOLTAGE PROGRAMMING HFE2500-12/S HFE2500-24/S HFE2500-48/S
2.1 Programming accuracy -+/-2% of full scale
2.2 Programming resolution -10 bits
2.3 Programming range V9.6~13.2 19.2~29.0 38.4~58
3. CURRENT LIMIT PROGRAMMING HFE2500-12/S HFE2500-24/S HFE2500-48/S
3.1 Programming accuracy -+/-8% of full scale
3.2 Programming resolution -10 bits
3.3 Programming range V50~110% of full scale
4. OUTPUT CURRENT MEASUREMENT HFE2500-12/S HFE2500-24/S HFE2500-48/S
4.1 Measurement accuracy - +/-10% of full scale
4.2 Measurement resolution - 10bit
4.3 Measurement range A 0~240 0~120 0~60
5. INTERNAL AMBIENT TEMPERATURE MEASUREMENT (refer to Instruction Manual)
5.1 Measurement accuracy -±3°C.
5.2 Measurement resolution -10bit
5.3 Measurement range °C 0~100
6.PRODUCT INFORMATION
6.1 Product ID - Factory programmed
6.2 Model Name - Factory programmed
6.3 Revision - Factory programmed
6.4 Serial Number - Factory programmed
6.5 Manufacturing location - Factory programmed
6.6 Coefficients - Factory programmed
7.STATUS INFORMATION
7.1 "FAN FAIL" Signal "1" -FAIL, "0"-OK
7.2 "DC FAIL" Signal "1" -FAIL, "0"-OK
7.3 Output "OVP" Signal "1"- OVP, "0"-OK
7.4 "TEMPERATURE ALARM" signal "1"- ALARM, "0"-OK
7.5 "OTP" Signal "1" -OTP, "0"-OK
7.6 "AC FAIL" Signal "1" -FAIL, "0"-OK
7.7 I2C ON/OFF control "1" -ON, "0"-OFF
7.8 "SMB ALERT" signal "1" -OK, "0"-ALERT
3. PMBus Interface Option ( /S Option )
14

3. PMBus Interface Option ( /S Option )
The communications bus signals are powered by an external 3.3V power source pulled up with a 1.5k resistor
3.1 HFE_2500 may have optional Power Management Bus (PMBus) hardware.
The PMBUS interface in the HFE2500 (/S option) includes:
•Monitoring the Output Voltage, Current and Temperature
•Programming the Output Voltage and current
•Programming the Maximum allowed output Voltage
•Programming the Supply On/OFF.
•Reading and Clearing Faults.
•Reading the Manufacturing Related Data (Model Name, Serial No, Manufacturing Date, etc)
•Storing the following conditions at AC Off
- Set Output voltage / current limit (OCP)
- Max allowed programmable output voltage
ATTENTION: If PMBus is used for voltage or current programming, the reference voltage will not be fixed to 5V but can be variable.
(Reference voltage will be used for voltage or current programming).
The PMBUS supports:
100KHz Operation.
Block Read Protocol
Group Command Protocol
Direct Data Format for Monitoring and Programming Functions
3.2 Addressing (A3, A2, A1, A0 inputs)
Four variable address lines allow up to 16 Supplies to be connected on a single bus.
PMBus uses 7 bit addressing.
There is constant part of address and variable part of address:
Constant part of address consists of 3 Most Significant Bits A6, A5, A4 and always equals 001.
Variable part of address consists of 4 Least Significant bits: A3, A2, A1, A0.
Value of these four bits have to be assigned by hardware connections of 4 pins of the PS connectors.
The Address lines (A3, A2, A1, A0) are internally pulled up by resistors to +5V.
The address lines can be left open for ‹1› address or connected to -S for ‹0› address.
So, available Address Space contains 16 possible addresses: from 0010000 to 0011111.
In case more than one unit is connected to PMBus, each unit must be set to its own unique address.
Duplicate addressing is not allowed.
For example: first unit -- A3(J1.B10), A2(J1.B5), A1(J1.B14), A0(J1.B16) are not connected – ADDRESS 0011111;
second unit -- A0(J1.B16) is connected to -SENSE – ADDRESS 0011110;
third unit – A1(J1.B14) is connected to -SENSE – ADDRESS 0011101;
and so on.
Attention: A3, A2, A1, A0 signals and -SENSE are NOT isolated from the Output Terminals.
Hot Plug: When hot plugging a power supply into a live system, the supply takes about 1-2 seconds to configure
its address on the bus (based on the analog voltage levels present on the back plane).
1.5kΩ
HFE2500
1.5kΩ 1.5kΩ
Fig-3.6 PMBus Typical connection
3.3 SERIAL CLOCK
This line is clocked by the Controller which controls the PMBUS. It should be connected to +3.3V (referenced to
“Signal RTN”) via a 1.5k pull-up resistor.
3.4 SERIAL DATA
This is a Bi-Directional line which must be connected to +3.3V (referenced to Signal RTN) via a 1.5k pull up resistor.
3.5 SMBALERT
SMBALERT is used to indicate to the HOST about any Faults/Error Conditions.
This line must be connected to +3.3V (referenced to Signal RTN) via a 1.5k pull up resistor.
This Signal is HIGH to indicate that no fault/error is present. If some fault/error occurs, the signal will go LOW.
The Host system must poll multiple supplies after receiving SMBALERT to retrieve fault/warning information.
3.6 PMBus TYPICAL CONNECTION
“SIGNAL RETURN” and PMBus signals are isolated
from the Output terminals and Senses.
3.3V
15

4. PMBus COMMAND SET
The interval between two consecutive commands to the power supply should be at least 25ms to ensure proper monitoring
fuctunality
4.1 READ_STATUS
This Command is used to read the status of the Power Supply. The Status information is stored in a special register called the“STATUS REGISTER”.
The PMBUS reads 8 different types of Faults and Warnings.
Command Used Type #Data bytes
D0h Read Byte 1
Command code Type #Data bytes
03h Send Byte 0
Command code Type Data sent
01h R/W Byte 00h=OFF
01h R/W Byte 80h=ON
Command Name Command code Type #Data bytes
PMBUS_REVISION 98h Read Byte 1
MFR_ID 99h Read Block 16
MFR_MODEL 9Ah Read Block 16
MFR_OUTPUT D1h Read Block 16
MFR_REVISION 9Bh Read Block 16
MFR_LOCATION 9Ch Read Block 16
MFR_DATE 9Dh Read Block 16
MFR_SERIAL 9Eh Read Block 20
All details except for ‹PMBUS_REVISION› are stored in ASCII format.
Fault is indicated by“1”. No fault is indicated by ”0”.
For Example: If DC Fail occurs, READ_STATUS will return 01h. SMBALERT will go “LOW”
If AC Fail occurs, READ_STATUS will return 11h. SMBALERT will go“LOW”
Faults Type Bit No in
Status
Register
Meaning Main output behavior
DC Fail FAULT 0 Output Voltage < 85~95% of Set Vout
Output OFF/Output Low
Over Temperature Protection FAULT 1 Internal temperature higher than safe limit Output OFF
Over Temperature Alarm WARNING 2
Internal temperature ~ 10°C below safe limit. Output ON
Fan Fail FAULT 3 One or both Fans are not working Output OFF
AC Fail FAULT 4 Input Voltage <85Vac / >270Vac Output OFF/Output ON
Over Voltage Protection FAULT 5 Output Voltage > 1.15xVset Output OFF
Programmed Voltage
more than allowed WARNING 6 Programmed Voltage more than Max Allowed Voltage (*1) Output ON
Command Error WARNING 7
Command not understood by Power Supply (*2) Output ON
(*1) If Max Allowed Voltage is set to 48V and Programmed Voltage is set to 50V, Output will be programmed to 48V, Bit No 6 will be
“1”, and SMBALERT will become“LOW”.
(*2) If any Command sent is not understood by the Supply, bit no 7 will be“1”and SMBALERT will become“LOW”.
4.2 CLEAR_FAULTS
This command is used to clear the“STATUS REGISTER” after any fault occurs.
If the CLEAR_FAULTS command is not sent after any fault occurs, the“STATUS REGISTER” will not be cleared.
SMBALERT signal will remain“LOW” until a “CLEAR_FAULTS”command is sent.
If a Fault or Warning is still present after“CLEAR_FAULTS”is sent,“STATUS REGISTER” will be updated and the SMBALERT signal will be “LOW”again.
4.3 OPERATION (ON/OFF)
4.4 COMMANDS TO READ INVENTORY DETAILS
If the Power Supply is turned OFF with the “OPERATION OFF”command, the Supply can be turned ON
with the“OPERATION ON”command only. Inhibit and Enable signals are disabled.
16

Command code Type #Data bytes
8Bh Read Word 2
4.5 PROGRAMMING AND MONITORING FUNCTIONS
For Monitoring and Programming functions use the following equation. This is the direct data format.
Y = (mX + b )* 10R X = (Y*10-R- b )/m
Where Y- digital value sent or received from the supply.
Xis the normal value (V, A, °C)
m, b, R - coefficients that are explained in Table 1.
Table 1
Voltage (V) Physical value Physical Unit Min. Value Max. Value m b R
48 Voltage Programming V 38.4 58 426 -15335 -1
Voltage monitoring V 0 60 1705 0 -2
Current monitoring A 0 60 1705 0 -2
Temperature monitoring °C 0 100 1023 0 -2
32 Voltage Programming V 28.8 38.4 639 -15333 -1
Voltage monitoring V 0 40 25575 0 -3
Current monitoring A 0 90 11366 0 -3
Temperature monitoring °C 0 100 1023 0 -2
24 Voltage Programming V 19.2 29 853 -15360 -1
Voltage monitoring V 0 30 341 0 -1
Current monitoring A 0 120 8525 0 -3
Temperature monitoring °C 0 100 1023 0 -2
12 Voltage Programming V 9.6 13.2 1705 -15345 -1
Voltage monitoring V 0 15 682 0 -1
Current monitoring A 0 240 4263 0 -3
Temperature monitoring °C 0 100 1023 0 -2
12, 24, 32, 48 Current monitoring % 50 110 146 -5830 -1
m, b, R coefficients can also be recovered from the EEPROM
coefficients are stored in ASCII Format
Command name Command code Type #Data bytes
MFR_VOLTAGE_MON_COEFF D2h Read Block 16
MFR_CURRENT_MON _COEFF D3h Read Block 16
MFR_TEMP_MON_COEFF D4h Read Block 16
MFR_VOLTAGE PROG_COEFF D5h Read Block 17
MFR_CURRENT PROG_COEFF D7h Read Block 16
4.5.1 MONITORING THE OUTPUT VOLTAGE (READ_VOUT)
The accuracy of the voltage reading is +/-2%
The output voltage is read before the ORING Circuit (~50mV Voltage drop @ load, no drop @no load).
The read back Output Voltage can be calculated using the “Direct data Format”.
Refer to Table 1 for the Coefficients for calculating the Output Voltage.
Example: Power Supply HFE2500-48;
Hex read back = 032Ch;
Converted to Decimal = 812;
Using the required coefficients the Output Voltage 812x100/1705 = 47.62V.
Read the Actual Output Voltage on the Output Bus Bar (Ex: 47.90V). Add 0.05V to compensate ORing Circuit drop
So, the actual voltage is (Ex: 47.90 + 0.05 = 47.95V).
Accuracy is (47.95-47.62)/60(*1)x100 = 0.55%
Supply (*1) Full Scale (*1)
HFE2500-12 15V
HFE2500-24 30V
HFE2500-32 40V
HFE2500-48 60V
17

4.5.2 MONITORING THE OUTPUT CURRENT (READ_IOUT)
The accuracy of the current reading is +/-10%
The read back output current can be calculated using the “Direct data Format”.
Refer to Table 1 for the Coefficients for calculating the Output Current.
Command Used Type #Data bytes
8Ch Read Word 2
Command Used Type #Data bytes
8Dh Read Word 2
Command Used Type #Data bytes
21h R/W Word 2
Command Used Type #Data bytes
24h R/W Word 2
Supply (*1) Full Scale (*1) Supply (*1) Full Scale (*1)
HFE2500-12 240A HFE2500-32 90A
HFE2500-24 120A HFE2500-48 60A
Supply (*1) Full Scale (*1) Supply (*1) Full Scale (*1)
HFE2500-12 15V HFE2500-32 40V
HFE2500-24 30V HFE2500-48 60V
Example: Hex read back = 0361h;
Converted to Decimal = 865;
Using the required coefficients the output current = 865x100/1705 = 50.73A;
Read the actual Output current (Ex: 50.05A) / Accuracy is (50.05-50.73)/60(*1)x100 = -1.13%
4.5.3 MONITORING THE SUPPLY TEMPERATURE (READ_TEMPERATURE_1)
The accuracy of the Temperature reading is +/-5C
The read back supply temperature can be calculated using the“Direct data Format”.
Please refer to table 1 for the Coefficients for calculating the Supply Temperature
Example: Hex read back = 01DCh;
Converted to Decimal = 476;
Using the required coefficients the Supply Internal Temperature = 476*100/1023 = 46.53°C.
4.5.4 PROGRAMMING THE OUTPUT VOLTAGE (VOUT_COMMAND) (please refer to pg. 10, Fig 1.7)
The accuracy of the Output Voltage Programming is +/-2%
The output Voltage can be programmed using the “Direct data Format”.
Please refer to table 1 for the Coefficients to be used for calculating the Voltage Programming.
Example: Power Supply HFE2500-24;
To program the Output Voltage to 24V, send (853x24+(-15360))/10 = 511 (DEC);
Read the actual set output Voltage (Ex: 24.05V) / Accuracy is (24.05-24)/30(*1)x100 = 0.16%
4.5.5 PROGRAMMING THE MAXIMUM ALLOWED PROGRAMMABLE OUTPUT VOLTAGE (VOUT_MAX)
The output Voltage can be programmed using the “Direct data Format”.
Please refer to table 1 for the Coefficients to be used for calculating the Voltage Programming.
18

Example: Power Supply HFE2500-24;
To program the maximum programmable output voltage to 29V
Send (853x29+(-15360))/10 = 938 (DEC)
Command Used Type Data sent
D6h R/W Byte 00h=OFF
D6h R/W Byte 01h=ON
4.5.7 ENABLING / DISABLING THE MONITORING FILTER
Monitoring filter can be enabled in order to reduce the effect of noise on the readback data.
Command Used Type #Data bytes
21h R/W Word 2
4.5.6 PROGRAMMING THE OUTPUT CURRENT LIMIT (please refer to pg. 11, Fig 1.8.1)
The accuracy of the Current Limit Programming is +/-5%
It is possible to program the OCP with the PMBUS. The OCP can be programmed between 50% to 110% of the nominal load current.
Please refer to Fig 1 for the current limits at respective levels
The output Current can be programmed using the“Direct data Format”.
Please refer to table 1 for the Coefficients to be used for calculating the Current Programming.
Please refer to Fig 1.8.1 for setup of Current programming
During Current programming, Vout_Max must be programmed to maximum limit.
Example: Power Supply HFE2500-48;
To program the Current Limit to 100%, send (146x100+(-5830))/10 = 877 (DEC);
Read the actual Current (Ex: 53A) / Accuracy is (52-53)/6(*1)x100 = 1.6%.
Important: When using the PMBUS to program the current limit, the output voltage is set to the rated value as a default.
To set the output voltage to different level, Please refer to Pg.10 paragraph 1.5 or 1.6
Supply (*1) Full Scale (*1) Supply (*1) Full Scale (*1)
HFE2500-12 240A HFE2500-32 90A
HFE2500-24 120A HFE2500-48 60A
19

IA689-04-01F
20