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ManualsBrandsPULS ManualsPSU ComponentsCD5.241 rail mount DC/DC converter, output: 24 Vdc 5 A 120 W

CD5.241, CD5.241-S1

CD–Series

DC/DC Converter; 24V, 5A

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone +49 89 9278 0 Germany

1/22

DC/DC CONVERTER

■ Wide Range DC Input (18-32.4Vdc)

■ Isolated 24Vdc Output

■ Efficiency up to 90.3%

■ Width only 32mm

■ 20% Output Power Reserves

■ Full Output Power Between -25°C and +60°C

■ Soft Start Function Included

■ Minimal Inrush Current Surge

■ Reverse Input Polarity Protection

■ DC-OK and Input-low Relay Contact (CD5.241-S1)

■ 3 Year Warranty

1. GENERAL DESCRIPTION

2. SHORT-FORM DATA

Output voltage DC 24V

Adjustment range 23 - 28V

Output current

5 – 4.3A

Ambient <60°C

6 – 5.1A

Ambient <45°C

Output power 120W Ambient <60°C

144W Ambient <45°C

Output ripple < 50mVpp 20Hz to 20MHz

Input voltage DC 24V 18 to 32.4Vdc

(14 to 18Vdc

with derating)

Input current typ. 5.5A At 24Vdc input

Input Inrush current typ. 1.2A peak

Efficiency typ. 90.3% At 24Vdc input

Losses typ. 12.9W At 24Vdc input

Hold-up time typ. 6ms At 24Vdc input

Temperature range -25°C to +70°C Operational

Derating 3W/°C +60 to +70°C

Dimensions 32x124x102mm WxHxD

The Dimension CD5-series offer DIN-rail DC/DC

converters in the 120W output power range in a very

compact housing.

These DC/DC converters are allowed to run from a

battery, can also be used to refresh and stabilize the

24Vdc on the end of a long cable or to isolate

specific loads from the 24V bus voltage.

The CD5.241 includes all the essential basic functions

while the CD5.241-S1 is equipped with quick-connect

spring clamp terminals, a DC-OK-contact which

monitors the output and an input-low-relay-contact.

Both devices have a power reserve of 20% and this

extra power can be used continuously up to +45°C.

CD5.241

CD5.121

CD5.242

CD5.241-S1

Spring-clamp

terminals,

Input-low,

DC-OK

contacts

CD-Series

Summary of content (22 pages)

PAGE 1
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series DC/DC CONVERTER ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Wide Range DC Input (18-32.4Vdc) Isolated 24Vdc Output Efficiency up to 90.3% Width only 32mm 20% Output Power Reserves Full Output Power Between -25°C and +60°C Soft Start Function Included Minimal Inrush Current Surge Reverse Input Polarity Protection DC-OK and Input-low Relay Contact (CD5.241-S1) 3 Year Warranty 1. GENERAL DESCRIPTION 2.
PAGE 2
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series INDEX 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. PAGE General Description ............................................1 Short-form Data ..................................................1 Order Numbers....................................................1 Markings ..............................................................1 Input Voltage ......................................................
PAGE 3
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 5. INPUT VOLTAGE Input Input voltage range nom. nom. DC 24V 18.0-32.4Vdc 14.0-18.0Vdc 36.0Vdc max. Allowed voltage between input and earth (ground) Allowed input ripple voltage max. max. 60Vdc or 42.4Vac 5Vpp Turn-on voltage Shut-down voltage typ. typ. typ. typ. typ. typ. typ. max. typ. 17.5Vdc 14.0Vdc 35Vdc 5.
PAGE 4
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 6. SOFT-START AND INPUT INRUSH CURRENT SURGE Inrush current limitation An active inrush limitation circuit (inrush limiting resistor which is bypassed by a relay contact) limits the input inrush current after turn-on of the input voltage. The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on. Inrush current max. typ. typ. Inrush energy Input 24Vdc 1.6Apeak 1.
PAGE 5
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 7. OUTPUT Output voltage Adjustment range Factory setting Line regulation Load regulation Ripple and noise voltage Output capacitance Output current Output power Short-circuit current nom. min. max. 24V 23-28V 30V max. max. max. max. typ. nom. nom. nom. nom. nom. nom. min. max. 24.1V 25mV 100mV 150mV 50mVpp 2200µF 6A 5A 5.1A 4.3A 144W 120W 7A 10A Guaranteed At clockwise end position of potentiometer ±0.
PAGE 6
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 8. HOLD-UP TIME The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for a certain period of time when the input voltage dips or is removed. The bulk capacitor can be discharged by loading the DC/DC converter on the output side or through a load which is parallel to the input. There is no protection in the DC/DC converter which prevents current from flowing back to the input terminals.
PAGE 7
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 9. EFFICIENCY AND POWER LOSSES Efficiency Power losses typ. typ. typ. typ. typ. Fig. 9-1 Efficiency vs. output current at 24V Input 24Vdc 90.3% 0.7W 1.1W 6.2W 12.9W 16.3W 5A, 24V CD5.241 at no output load CD5.241-S1 at no output load 2.5A, 24V 5A, 24V 6A, 24V Fig. 9-2 Losses vs. output current at 24V Efficiency Power Losses 91% 18W 90 15 89 12 88 9 87 6 3 86 Output Current 85 1 2 3 4 Output Current 0 5 6A Fig.
PAGE 8
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 10. FUNCTIONAL DIAGRAM Fig. 10-1 Functional diagram CD5.241 Output Voltage Regulator + - Reverse Polarity Protection & Inrush Limiter Input Fuse & Input Filter Chassis Ground OverTemperature Protection Power Converter Output Filter Output OverVoltage Protection VOUT + + DC ok Fig. 10-2 Functional diagram CD5.
PAGE 9
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 12. FRONT SIDE AND USER ELEMENTS Fig. 12-1 Front side CD5.241 Fig. 12-2 Front side CD5.241-S1 C A A Output Terminals Screw terminals (Spring-clamp terminals on the CD5.241-S1) Dual terminals per pole + Positive output Negative (return) output A D D E E B Input Terminals Screw terminals (Spring-clamp terminals on the CD5.
PAGE 10
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 14. DC-OK RELAY CONTACT (CD5.241-S1) This feature is only available on the model CD5.241-S1 and monitors the output voltage, which is produced by the DC/DC converter itself. It is independent of a back-fed voltage from a unit which is connected in parallel to the DC/DC converter output. It is a “Normally Open” contact. Contact closes Contact opens As soon as the output voltage reaches the adjusted output voltage.
PAGE 11
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 16. EMC The CE mark indicates conformance with EMC directive 89/336/EC, 93/68/EC and 2004/108/EC and the low-voltage directive (LVD) 73/23/EC, 93/68/EC, 2006/95/EC. A detailed EMC Report is available on request. EMC Immunity Electrostatic discharge Electromagnetic RF field Fast transients (Burst) EN 61000-6-2, EN 61000-6-1 EN 61000-4-2 Contact discharge Air discharge EN 61000-4-3 80MHz-2.
PAGE 12
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 17. ENVIRONMENT Operational temperature Output de-rating Storage temperature Humidity -25°C to +70°C (-13°F to 158°F) 1.6W/°C 3W/°C -40 to +85°C (-40°F to 185°F) 5 to 95% r.H. Reduce output power according to Fig. 17-1 45-60°C (113°F to 140°F), see Fig. 17-1 60-70°C (140°F to 158°F), see Fig. 17-1 During storage and transportation IEC 60068-2-30 2-17.8Hz: ±1.6mm; 17.
PAGE 13
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 19. SAFETY Input / output separation SELV IEC/EN 60950-1 PELV EN 60204-1, EN 50178, IEC 60364-4-41 Double or reinforced insulation, Max. allowed voltage between any input pin and ground: 60Vdc or 42.4Vac II PE (Protective Earth) connection not required > 5MOhm Input to output, 500Vdc < 0.
PAGE 14
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 21. APPROVALS IEC 60950-1 IECEE CB Scheme, Information Technology Equipment CB SCHEME UL 508 18WM LISTED IND. CONT. EQ. LISTED E198865 Industrial Control Equipment UL 60950-1 RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1) and Canada (C22.2 No. 60950) Information Technology Equipment, Level 3 UL 1604 pending RECOGNIZED E246877 recognized for use in U.S.A. (UL 1604) and Canada (C22.2 No.
PAGE 15
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 24. PHYSICAL DIMENSIONS AND WEIGHT Weight 425g / 0.94lb CD5.241 450g / 0.99lb CD5.241-S1 DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm. The DIN-rail height must be added to the depth (102mm) to calculate the total required installation depth. Electronic files with mechanical data can be downloaded at www.pulspower.com Fig. 24-1 CD5.241 Front view Fig. 24-2 CD5.241 Side view Fig. 24-3 CD5.
PAGE 16
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 26. ACCESSORY ZM1.WALL Wall mounting bracket This bracket is used to mount specific Dimension units onto a flat surface without utilizing a DIN-Rail. The two aluminum brackets and the black plastic slide of the unit have to be removed, so that the two steel brackets can be mounted. (Please note: Picture shows a different unit) Fig. 26-1 ZM1.WALL Wall Mounting Bracket Fig. 26-2 Assembled Wall Mounting Bracket ZM11.
PAGE 17
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27. APPLICATION NOTES 27.1. PEAK CURRENT CAPABILITY Solenoids, contactors and pneumatic modules often have a steady state (sealed) coil and a pick-up coil. The inrush current demand of the pick-up coil is several times higher than the steady state current and usually exceeds the nominal output current (including the PowerBoost) The same situation applies, when starting a capacitive load.
PAGE 18
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27.4. OUTPUT CIRCUIT BREAKERS Standard miniature circuit breakers (MCBs or UL1077 circuit breakers) can be used for branch circuit protection. Ensure that the MCB is also rated for DC voltage. The following tests show which circuit breakers the DC/DC converter typically trips.
PAGE 19
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27.5. SERIES OPERATION DC/DC converters can be connected in series to increase the output voltage. Instructions for use in series: a) It is possible to connect as many units in series as needed, providing the sum of the output does not exceed 150Vdc. b) Voltages with a potential above 60Vdc are not SELV any more and can be dangerous. Such voltages must be installed with a protection against touching.
PAGE 20
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27.8. PARALLEL USE FOR 1+1 REDUNDANCY DC/DC converters can be paralleled for 1+1 redundancy to gain a higher system availability. Redundant systems require a certain amount of extra power to support the load in case one DC/DC converter unit fails. The simplest way is to put two DC/DC converters in parallel. In case one converter fails, the other one is automatically able to support the load current without any interruption.
PAGE 21
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27.10. REQUIREMENTS FOR THE SUPPLYING SOURCE In certain circumstances, the input filter of the DC/DC converter can show a resonant effect which is caused by the supplying network. Especially when additional external input filters are utilized, a superimposed AC voltage can be generated on the input terminals of the DC/DC converter which might cause a malfunction of the unit. Therefore, additional input filters are not recommended.
PAGE 22
CD5.241, CD5.241-S1 DC/DC Converter; 24V, 5A CD–Series 27.13. MOUNTING ORIENTATIONS Mounting orientations other than input terminals on the bottom and output on the top requires a reduction in continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction influences the lifetime expectancy of the DC/DC converter. Therefore, two different derating curves for continuous operation can be found below: Curve A1 Curve A2 Recommended output current.