TDK-Lambda GWS 500 Series Bedienungsanleitung

TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

GWS500 Series

Instruction Manual

BEFORE USING THE POWER SUPPLY UNIT

Pay attention to all warnings and cautions before using the unit. Incorrect usage could lead to an electrical

shock, damage to the unit or a fire hazard.

WARNING and CAUTION

Do not modify.

Do not touch the internal components, they may have high voltage or high temperature. You may get

electrical shock or burned.

When the unit is operating, keep your hands and face away from it as you may be injured by flying debris in

the event of a fault.

This power supply is designed for use within an end product. Stick the WARNING label for users on the

system equipment and notify in the system instruction manual.

Never operate the unit under over current or short-circuit conditions for more than 30 seconds or outside its

specified Input Voltage Range, which could result in damage but there is no possibility of fire or burning.

Confirm connections to input/output terminals are correct as indicated in the instruction manual.

This power supply has a possibility for hazardous voltage to appear at output terminal depending on the type

of failure. The outputs of these products must be earthed in the end equipment to maintain SELV.

If the outputs are not earthed, they must be considered hazardous and must not be made user accessible.

Note: CE MARKING

CE marking, when applied to the GWS series products, indicates compliance with the Low Voltage Directive

(2014/35/EU) in that it complies with EN60950-1 2nd Edition.

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

1. Model Name Identification Method

GWS 500 – 12 /

2. Terminal Explanation

2-1. Front Panel Explanation

(1) L : Input terminal Live line (Fuse in line)

(2) N : Input terminal Neutral line

(3) : Protective Earth (Frame Ground, FG)

(4) - V : - Output terminal

(5) +V : + Output terminal

(6) Output monitoring indicator (Green LED : ON)

(7) V.ADJ : Output voltage adjustment trimmer (The output voltage rises when the trimmer is turned clockwise.)

(8) CN201: Remote Sensing, DCOK, 5VSB, Remote On/Off and PV signals (Refer to 2.2)

(*1)

blank: Standard type

/BAT: Battery charging for 24V (21~29V/17.6A)

& 48V (42~58V/8.8A) only

/T: OTP auto recovery after unit cools down

/RL: Remote ON/OFF reverse logic (Active High)

/F: Full cover without internal fan but require

external forced air cooling.

/L: Without cover but require external forced air

cooling.

Option (*1)

Rated Output Voltage

Output Power type

Series name

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

2-2. CN201 Connector Pin Configuration and Function

Pin No. Configuration Function

1 +Vm +Output Voltage Monitor

2 +S +Sensing

3 -Vm -Output Voltage Monitor

4 -S -Sensing

5 DCOK DCOK signal is an open collector output signal, referenced

to pin6 (COM). As the output voltage drops, DCOK signal

will output “High”.

6 COM Return loop for DCOK signal.

7 5VSB Auxiliary voltage output, 4.75~5.25V, referenced to pin8

(5V COM). The maximum load current is 0.3A. This output

is not controlled by the remote ON/OFF control.

8 5V COM Return loop for 5VSB output.

9 CNT+ Remote ON/OFF control terminal (When CNT+ is pulled to

TTL low, power supply unit turns ON. Otherwise, it turns

OFF)

10 CNT- Return loop for CNT+ signal

11 PV Output voltage external control terminal

12 COM Return loop for PV signal.

CN201 Connector, Housing and Terminal Pins

PART DESCRIPTION PART NAME MANUFACTURER

PIN HEADER S12B-PHDSS(LF)(SN) JST

SOCKET HOUSING PHDR-12VS JST

TERMINAL PINS SPHD-002T-P0.5(AWG28~24)

SPHD-001T-P0.5(AWG26~22) JST

HAND CRIMPING TOOL YRS-620(SPHD-002T-P0.5)

YC-610R(SPHD-001T-P0.5) JST

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

2-3. Basic Connection (Local sensing)

(1) Connect “+S” terminal to “+Vm” terminal with sensing wire

(2) Connect “-S” terminal to “-Vm” terminal with sensing wire

(3) Connect “CNT+” terminal to “CNT-” terminal with wire

Please use attached connector for each connection.

2-4. Remote Sensing (+S, -S terminal)

(1) Connect “+S” terminal to “+” terminal of load with sensing wire

(2) Connect “-S” terminal to “-” terminal of load with sensing wire

(3) Connect “CNT+” terminal to “CNT-” terminal with wire

This function compensates voltage drop of wiring from output terminals to load terminals. Connect “+S” terminal to “+”

terminal of load and “-S” terminal to “-” terminal of load with sensing wires. The total line voltage drop (+ side line and

- side line) shall be less than 0.3V. In case that sensing lines are too long, it is necessary to put an electrolytic capacitor

in following places:

(1) across the load terminal,

(2) between “+S” terminal and “+V” terminal,

(3) between “‐S” terminal and “‐V” terminal.

When the function of remote sensing is not in use, connect +S terminal to +Vm terminal, and –S terminal to –Vm

terminal by the attachment connector. If remote sensing terminals are opened, the stability and the accuracy of the

output deteriorated. Therefore, terminal +S, -S must be connected.

Lo ad

CN201 -S

+Vm

-Vm

-V

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

3. Terminal Connection Method

Please pay extra attention to the wiring. Incorrect connection may cause damage the power supply.

When connecting input, output wiring, and CN201, input AC-Line should be OFF.

The output load line and input line shall be separated to improve noise immunity.

The protective earth (PE) must be connected to the terminal.

Remote sensing lines shall be twisted or use shielded wires.

Remote ON/OFF control lines shall be twisted or use shielded wire.

Current for each terminal screw shall be 40A or less.

Basic Connection (Local Sensing)

Connect with the attached connector to CN201

ON/OFF control required

“CNT-“ terminal is ground for “CNT+” terminal.

DCOK output signal required

Open collector method shown below shall be used

“COM“ terminal is ground for “DCOK” terminal.

PV control required

Inject external voltage between 3~6V

“COM“ terminal is ground for “PV” terminal.

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

4. Explanation Of Functions And Precautions

4-1. Input Voltage Range

Input voltage range is single phase 85 ~ 264VAC (47 ~ 63Hz) or 120 ~ 373VDC.

Input voltage which is out of specification, may damage the unit. For cases where conformance to various

safety specifications (UL,CSA,EN) are required, input voltage range will be 100~240VAC (50/60Hz).

Note: GWS500 series is able to withstand Input Surge of 300VAC for 5 seconds.

4-2. Output Voltage Range

V.ADJ trimmer is for output voltage adjustment within the range of specifications. Turning the trimmer clockwise will

increase the output voltage. Kindly note that over voltage protection ( OVP ) function may trigger if the output voltage

is increased excessively. Please ensure that the output power is below the rated output power, and output current is

below the maximum output current (12V & 48V) or below the peak output current (24V & 36V) when output voltage is

raised.

4-3. Over Voltage Protection (OVP)

The OVP function will shutdown the output. To reset OVP, remove the input of power supply for a few minutes, and

then re-input. Alternatively, use CNT reset (Remote ON/OFF: OFF to ON). OVP setting is fixed and cannot be adjusted

externally.

4-4. Over Current Protection (OCP)

OCP function operates when the output current exceeds OCP specifications. OCP characteristic is constant current

limiting within their voltage range for 24V ~ 48V while hiccup mode for 12V. The output will automatically recover

when the overload condition is removed. Do not operate overload or shorted conditions for more than 30 seconds, which

could result in damage. There is no possibility of fire or burning. OCP setting is fixed and not to be adjusted externally.

4-5. Over Temperature Protection (OTP)

Over Temperature Protection function (manual reset type) is provided. When ambient or internal temperature rises

abnormally, OTP function will shut down the output. To recover the unit, first shut down the AC input and let the unit

cool down before turning ON the AC input. Alternatively, use CNT reset (Remote ON/OFF: OFF to ON) after letting

the unit cool down.

As for the /T option model, the unit automatically recovers after it cools down without the need for AC recycle or CNT

reset.

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

4-6. Low Output Detection Circuit (DCOK)

Low output voltage detection circuit is provided. DCOK signal is only valid after AC input is turn-on for more than one

sec. DCOK signal will turn “High” level to indicate abnormal status when the output voltage becomes less than

approximately 80% of rated. It uses the open collector method as shown below

4-7. Remote ON/OFF Control

Remote ON/OFF control is provided.

Using this function, output on/off is allowed to be controlled without input voltage on/off. The output is turned ON

when CNT+ and CNT- terminals are shorted, while the output is turned OFF when these terminals are opened. When

this function is not used, connect CNT+ and CNT- terminals together. The specifications for this function are as follows

(1) TTL compatible.

(2) The maximum input voltage to CNT+ terminal is 12V, and the maximum allowable reverse voltage is -1V.

(3) The source current for CNT+ terminal is 3.5mA.

(4) A switch or a relay or a transistor or a FET can be used as ON/OFF switch.

The /RL option model reverses the logic of the remote ON/OFF function.

Voltage Range between CNT+ and CNT- Output Status

Standard type /RL option

2.4 ≤H ≤12.0V or Open OFF ON

0.0 ≤L ≤0.8V or Short ON OFF

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

4-8. Output Ripple & Noise

Ripple & noise are measured at 20MHz by using a 300mm twisted pair of load wires terminated with a 0.1uF film

capacitor & 47uF electrolytic capacitor. When load lines are longer, ripple becomes larger. The output ripple cannot be

measured accurately if the probe ground lead of oscilloscope is too long. At low temperature, large ripple & noise may

also be observed due to large ESR of the internal Electrolytic Capacitors especially at -25°C.

4-9. Series Operation

For series operation, either method ( A ) or ( B ) is possible.

Method ( A ) Method ( B )

4-10. Parallel Operation

(A) Operation to increase the Output Current is not possible.

(B) Operation as a Backup Power Supply is possible as follows:

1. Set the power supply output voltage higher by the amount of forward voltage drop ( VF) of the diode.

2. Please adjust the output voltage of each power supply to be the same.

3. Please use within the specifications for output voltage, output current and output power.

(A) (B)

Load

+Vm

-Vm

Power Supply

-S

+Vm

-Vm

-S

+Vm

-Vm

Load

Power Supply

-S

+Vm

-Vm

-S

Load

-Vm

Load

Power Supply

-S

-Vm

-S

+Vm

-Vm

Load

Power Supply

-S

+Vm

-Vm

-S

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TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

4-11. Output Voltage External Control (PV)

Output voltage external control function is available. Output voltage can be varied by applying an external voltage

(3–6V) to “PV” terminal and “COM” terminal. Please consider the following characteristics.

Note:

For 12V & 36V output model, limit output voltage variation range at 60% ~ 110%. At PV voltage variation 3V ~ 5.5V.

For 24V output model, limit output voltage variation range at 60% ~ 120%. At PV voltage variation 3V ~ 6V.

For 48V output model, limit output voltage variation range at 80% ~ 120%. At PV voltage variation 4V ~ 6V.

Connection method

PV voltage (Nominal Input Voltage)

Output Voltage Linearity (12V, 24V, 36V & 48V)

5.5V

6V5V

Nominal

Vout

60%

110%

120%

Output Voltage

80%

24 & 48V Model

48V Model

12~36V Model

12 & 36V Model

+Vm

-Vm

Load

Power Supply

-S

COM

External voltage

Output Voltage Derating

Output Voltage

100%

83%

Nominal Vout

110%

120%

90%

Load Current

80%

60%

24 & 48V Model

48V Model

12~36V Model

12 & 36V Model

90%

TDK-Lambda

GWS 500 Series

INSTRUCTION MANUAL

4-12. Battery Charging (/BAT) option

An option model for battery charging operation is available. It comes in two output voltages namely, 24V & 48V with

ex-factory setting of 29V & 58V respectively.

However, in conjunction with the Vadj and PV functions, the output voltage can be set to the range shown on the charts

below.

24/BAT should be used to charge 24V battery while 48/BAT should be used to charge 48V battery.

Battery charging (Constant Current) is applicable for valid output voltage range. The unit may hiccup below this voltage

range.

Connection method

+Vm

-Vm

Load

Power Supply

-S

COM

External voltage

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