TDK-Lambda CPFE1000F SERIES Operation Manual

CPFE1000F SERIES

POWER SUPPLY

OPERATION MANUAL

1

5 June 2013

GENERAL SAFETY INSTRUCTIONS.............................................................................................................................2

1. Timing Sequence.............................................................................................................................................................4

2. Output Voltage Adjustment Range..................................................................................................................................5

3. Ripple and Noise.............................................................................................................................................................6

4. Maximum Line Regulation .............................................................................................................................................6

5. Maximum Load Regulation ............................................................................................................................................6

6. Over Current Protection (OCP).......................................................................................................................................6

7. Over Voltage Protection (OVP).......................................................................................................................................7

8. Over Temperature Protection (OTP) ...............................................................................................................................7

9. Remote Sensing (+S, -S terminals) .................................................................................................................................7

10. ON/OFF Control ...........................................................................................................................................................8

11. Parallel Operation (CS terminal)...................................................................................................................................9

11a. Parallel for Redundant Operation:.............................................................................................................................10

12. Series Operation..........................................................................................................................................................11

13. Power ON Signal (ENA terminal)...............................................................................................................................12

14. I.O.G Signal (IOG terminal) .......................................................................................................................................12

15. Auxiliary Power Supply..............................................................................................................................................12

16. Operating Temperature Range.....................................................................................................................................12

17. Withstand Voltage .......................................................................................................................................................13

18. Insulation Resistance...................................................................................................................................................14

19. Connection Details......................................................................................................................................................14

20. Safety Approvals.........................................................................................................................................................15

21. EMC & Immunity .......................................................................................................................................................15

22. Fault Finding...............................................................................................................................................................15

23. Connector Locations ...................................................................................................................................................15

24. I2C Bus Interface.........................................................................................................................................................16

25. Mechanical Drawing...................................................................................................................................................21

26. Baseplate Temperature Measurement Point................................................................................................................21

27. Heat Sink Selection.....................................................................................................................................................22

CPFE1000F SERIES

POWER SUPPLY

OPERATION MANUAL

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5 June 2013

GENERAL SAFETY INSTRUCTIONS

High Voltage Warning

Dangerous voltages are present within the power supply.

Critical Components

This product is not Authorized for use as a critical component in nuclear control systems, life support systems or
equipment for use in hazardous environments without the express written approval of the Engineering Director of TDK­Lambda Americas.

Servicing

This product is not customer serviceable.
Unit repairs shall only be carried out by TDK- Lambda Americas or their Authorized agents.

Contact: TDK-Lambda Americas
3055 Del Sol Blvd
San Diego, CA 92154

Tel [phone]
Fax [phone]

Safety Class of Protection

The unit is designed for the following parameters : Material Group IIIb, Pollution Degree 2, Overvoltage Category II,
Class 1 (earthed), Indoor use. The unit is considered as fixed and rated IPX0. The CPFE1000F-12 and CPFE1000F-28
are classed as having SELV outputs. The CPFE1000F-48 is classed as having a NON SELV output. All outputs are
capable of providing hazardous energy (>240VA). The final equipment should provide protection to service personnel
against inadvertent contact with the PSU output terminals.

Installation

This product is designed for use within other equipment which restricts access to Authorized competent personnel only.
The unit covers/chassis must not be made user accessible.

The appliance may be mounted in any orientation except inverted (baseplate uppermost). The customer has to ensure
the baseplate temperature remains below certain limits.

CPFE1000F-12: Input 85V-265V baseplate temperature limited to 85°C
CPFE1000F-28 & CPFE1000F-48: Input 85V-170V baseplate temperature limited to 70°C.
CPFE1000F-28 & CPFE1000F-48: Input 170V-265V baseplate temperature limited to 85°C.
The mains input connector is not acceptable for use as field wiring terminals.
The appliance must be securely mounted and the baseplate properly bonded to the main protective earth contact before
any connection to AC mains supply is made.

The ventilation openings must not be impeded – ensure a space at least 5cm between any obstruction and the ventilation
openings.

BEFORE USING THE POWER SUPPLY UNIT

Be sure to read this instruction manual thoroughly before using this product. Pay attention to all cautions and warnings
before using this product. Incorrect usage could lead to an electrical shock, damage to the unit or a fire hazard.

DANGER

• Never use this product in locations where flammable gas or ignitable substances are present.

WARNING

• Do not make unauthorized changes to power supply unit, otherwise you might have electric shock and void your
warranty.

• Do not touch this unit and the internal components in operation or shortly after shut down. They might have high
voltage or high temperature and as the unit dissipates its heat so the surface of the unit is hot. You might receive electric
shock or burn.

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• When the unit is operating, keep your hands and face away from it; you might be injured by an accident.

• Do not use unit under unusual conditions such as emission of smoke or abnormal smell and sound etc. It might

cause fire and electric shock. In such case, please contact us; do not repair by yourself, as it is dangerous for the user.

• Do not drop or insert anything into unit. It might cause failure and fire.

• Do not operate these units under condensation condition. It might cause fire and electric shock.

CAUTION

• As a component part, compliance with the standard will be based upon installation in the final application. This
product must be installed in a restricted access location, accessible to authorized competent personnel only. These AC to
DC converters have reinforced insulation between the input and the output. The outputs of these products are energy
hazards. All models with an output greater than 28V model are considered to be non-SELV. As such, the instructions for
use must refer to these energy hazardous outputs and Non-SELV outputs in that the outputs must not be accessible to the
operator. The installer must also provide protection against inadvertent contact by a service engineer.

• The equipment has been evaluated for use in a Pollution Degree 2 environment.

• This power supply is primarily designed and manufactured to be used and enclosed in other equipment.

• Confirm connections to input/output terminals and signal terminals are correct as indicated in the instruction

manual.

• Input voltage, Output current, Output power, ambient temperature and ambient humidity should be used within
specifications, otherwise the unit will be damaged.

• For application equipment, which requires very high reliability (Nuclear related equipment, traffic control
equipment, medical equipment, etc.), please provide fail safety function in the equipment.

• Do not use the product in environment with strong electromagnetic field, corrosive gas and conductive substance.

• Do not operate and store this unit at an environment where condensation occurs. In such case, waterproof treatment

is necessary

• Never operate the unit under over current or shorted conditions for 30 seconds or more and out of Input Voltage
Range as specification. Insulation failure, smoking, burning or other damage might occur to the unit.

• The output voltage of this power supply unit is considered to be a hazardous energy level (The voltage is 2V or
more and the electric power is 240VA or more). Prevention from direct contact with output terminal is highly necessary.
While installing or servicing this power supply unit, avoid dropping tools by mistake or direct contact with output
terminal. This might cause an electrical shock. While repairing this power supply unit, the AC input power must be
switched off and the input and output voltage should be level.

• To maintain the SELV output for outputs less than 28VDC, under fault conditions, the output must be connected to
earth in the final application.

• The application circuits and their parameter are for reference only. Be sure to verify effectiveness of application
circuits and their parameters before finalizing circuit design.

• Do not inject abnormal voltage to output terminal and signal terminal from the outside. The injection of reverse
voltage or over voltage exceeding nominal output voltage to output terminals might cause damage to internal
components.

• This information in this document is subject to change without prior notice. For actual design-in, please refer to the
latest publications of data sheet, etc., for the most up-to date specifications of the unit.

Note : CE MARKING

CE Marking when applied to a product covered by this handbook indicates compliance with the low voltage directive (2006/95/EC) in that it complies
with EN60950-1.

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1. Timing Sequence

Note: BC Terminal Voltage is an internal factory measurement test point that is not accessible to the user.

Input Line

ON

OVP Trip

LVP Trip

OCP Active

Input Line

OFF

Input Line

ON

OTP Trip

Control OFF

Control ON

Control OFF

Control ON

Control OFF

Control ON

Control OFF

Control ON

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2. Output Voltage Adjustment Range

Output Voltage Adjustment Range:

+/-20% of the typical voltage rating

When increasing or decreasing the output voltage, care must be taken such as not to exceed the maximum output power.
If remote sensing is used, this must also be considered as not to exceed the maximum output power.

2.1 Output Voltage Adjustment by voltage adjustment potentiometer.

A multi-turn potentiometer is located between the (+) and (-) output studs. Turning the adjustment screw on the
potentiometer clockwise increases the output voltage; likewise, turning the screw counter clockwise decreases the
output voltage. Note: Care must be taken as not to adjust the output voltage higher than the highest voltage specified
within the specified voltage range; doing so may cause the over voltage protection (OVP) circuit to activate thus
immediately reducing the output voltage to zero.

2.2 Output Voltage Adjustment by applying external voltage

By applying an external voltage at the TRIM terminal, the output voltage can be adjusted within the same output
voltage adjustment range of +- 20% of the nominal output voltage. Exceeding the maximum specified output voltage
will cause activation of the Over Voltage Protection (OVP) circuit.
Likewise, exceeding the minimum output voltage will cause activation of the Low Voltage Protection (LVP) circuit. The
nominal output voltage is present without using the external output voltage adjustment circuit.

Fig. 2-1 Output Voltage Adjustment

by applying external voltage

Note: The Trim terminal voltage must be limited to 1.00V maximum; otherwise, the over-voltage protection circuit will
activate and shut down the output voltage.

Model Adjustment Range Typical External Voltage Range

CPFE1000F-12 9.6 – 14.4V 0.65 – 1.0V
CPFE1000F-28 22.4 – 33.6V 0.65 – 1.0V
CPFE1000F-48 38.4 – 57.6V 0.67 – 1.0V

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3. Ripple and Noise

Ripple and Noise is measured according to the description below in accordance with JEITA-9131B (Sections 7.16, 7.17
and 7.18).
The measurement connection is shown in Fig. 3-1.
(Ceramic Capacitor: 2.2µF and Electrolytic Capacitor : Refer to Table 1-2) must be connected within 50mm from the
output terminals. Then, connect coaxial cable with JEITA attachment across the ceramic capacitor electrodes. Use
100MHz bandwidth oscilloscope or equivalent.

In general, output ripple voltage and output spike noise voltage can be reduced by increasing external capacitance.

Fig. 3-1

Output Ripple Voltage (including Spike Noise)

Measurement Method

4. Maximum Line Regulation

Maximum line regulation is defined as the maximum output voltage change when the input voltage is gradually

changed within the specification range.

5. Maximum Load Regulation

Maximum load regulation is defined as the maximum output voltage change when output load current is gradually
changed within specification range.

6. Over Current Protection (OCP)

The CPFE1000Fxx is equipped with an OCP feature; constant current limiting. The output will enter hiccup mode when
the output current is between 105 to 140% of its output current rating. OCP value is fixed and cannot be adjusted
externally.
The power supply is also protected from a short circuit on the output. If the short circuit condition lasts longer than 15
seconds, the output voltage will recover within 20 seconds after the short is removed.

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7. Over Voltage Protection (OVP)

The CPFE1000Fxx is equipped with OVP feature. The unit will shutdown if the voltage on the output is between 125%
to 145% of nominal output voltage.

8. Over Temperature Protection (OTP)

The CPFE1000Fxx is equipped with OTP feature. Upon detection of an over temperature condition, the OTP circuit will
shut down the output. The OTP activates at following baseplate temperatures:

CPFE1000F-xx: > 90°C (also see derating specifications)

Upon activation of the OTP , the baseplate must be allowed to cool. The output voltage will recover after the base plate
temperature is at 10°C below the OTP set point (95°C typical).

9. Remote Sensing (+S, -S terminals)

This unit has remote sensing terminals to compensate for voltage line drop from the output terminals to the output

load. When remote sensing is not required, leave the sense terminals disconnected.

Note that line drop (voltage drop due to wiring) compensation voltage range must be such that the output voltage is

within the output voltage adjustment range and that the voltage between -V and -S must be within 0.5V.

Consider power loss due to line drop and use this unit within the maximum allowable output power. Reduce the effect

of noise induced into the remote sensing lines by using shielded lines, a twist pair, or a parallel pattern, etc.

When remote sensing lines are long, add the electrolytic capacitor as shown in Fig 9-1. (if needed)

Fig. 9-1 Remote Sensing is used