Download Print this page
TDK-Lambda GWS250 Series Instruction Manual
TDK-Lambda GWS250 Series Instruction Manual

TDK-Lambda GWS250 Series Instruction Manual

Gws250 series;

Advertisement

Quick Links

GWS250 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. 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
(2006/95/EC) in that it complies with EN60950-1 2
nd
Edition .
DWG NO. : PA589-04-01B
APPD
TDK-Lambda
GWS 2
Series
50
INSTRUCTION MANUAL
CHK
DWG

Advertisement

loading
Need help?

Need help?

Do you have a question about the GWS250 Series and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Summary of Contents for TDK-Lambda GWS250 Series

  • Page 1 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL GWS250 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.
  • Page 2 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 1. Model name identification method (*1) GWS 250 – 12 / Standard type blank: Option (*1) Power up to 350W with system airflow of 20cfm minimum and air blowing in from Rated Output Voltage opposite side of input/output connectors Battery charging for 24V (21~29V/8.8A)
  • Page 3 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 2-2. CN1 Connector Pin Configuration and Function Configuration Function DC_OK DC_OK signal is an open collector output signal, ref- erenced to pin2 (COM). As the output voltage drops, DC_OK signal will output “High”. Return loop for DC_OK signal.
  • Page 4 TDK-Lambda GWS 2 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 and output wiring, and CN1, input AC-Line should be OFF. The output load line and input line shall be separated and twisted to improve noise immunity.
  • Page 5 Input voltage which is out of specification, may damage the unit. For cases where conformance to various safety specs(UL,CSA,EN) are required, input voltage range will be 100~240VAC (50/60Hz ). Note : GWS250 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.
  • Page 6 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 4-6. Low Output Detection Circuit (DC_OK) Low output voltage detection circuit is provided. DC okay (DC_OK) signal will turn “High” level to indicate abnormal status when the output voltage becomes less than approximately 80% of rated value caused by either the drop or brownout of the input voltage or OCP, OVP and OTP function generation.
  • Page 7 TDK-Lambda GWS 2 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.
  • Page 8 TDK-Lambda GWS 2 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.
  • Page 9 TDK-Lambda GWS 2 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.
  • Page 10 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 4-13. Output Peak Power Operating conditions for peak power/current models: Reduce peak current according to output derating curve for higher ambient temperature (see section 5.1) Output might shut down when the rated current or the continuous peak output time (τ) exceeded rated value specified.
  • Page 11 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 5. Isolation / Withstand Voltage 5-1. Isolation Test Isolation resistance between output and FG (chassis) shall be more than 100MΩ at 500VDC. For safety, voltage setting of DC isolation tester must be done before the test. Ensure that the unit is fully discharged after the test.
  • Page 12 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 6. Mounting Directions 6-1. Output Derating according to the Mounting Directions (a) Convection cooling, without external airflow (Standard type) Recommended standard mounting is Method ( A ). Methods ( B ), ( C ) and ( D ) are also possible.
  • Page 13 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL (b) Forced air cooling, (/P option) External airflow of at least 20cfm and air blowing in from the opposite side of the input/output connectors. Recommended standard mounting is Method ( A ). Method ( B ) is also possible.
  • Page 14 Series INSTRUCTION MANUAL 6-2. Output Derating according to ambient temperature and input voltage (A) GWS250 series Output Derating versus Ambient Temperature The system is convection cooling. In the following derating curve, the maximum output current is denoted as 100%. Output Derating versus Ambient Temperature (Convection Cooling)
  • Page 15 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL The system is convection cooling. In the following derating curve, the maximum output current is denoted as 100%. Output Derating versus Input Voltage (Convection Cooling) Output Derating Vs Input Voltage Load (%) Mounting Mounting B, C &...
  • Page 16 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL (C) GWS250/P series Output Derating versus Ambient Temperature The system is forced air cooling with external airflow of at least 20cfm and air blowing in from the opposite side of the input/output connectors. Airflow (≥...
  • Page 17 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL The Output Derating with external fan depends on the airflow conditions and the temperature rise for the components. The method stipulated below provide a way to decide for the safe operation of this power supply. As shown, this table provides a list of the maximum temperature allowed for specified components.
  • Page 18 TDK-Lambda GWS 2 Series INSTRUCTION MANUAL 6-3 Mounting Method This is convection cooling type power supply. In consideration of the heat radiation and safety, please keep a dis- tance of more than 15mm between the power supply and the peripheral parts. When lining up multiple units, please make sure to place them 5mm or more apart from each other.
  • Page 19 Both wires must be as thick and short as possible to have lower impedance. Noise can be reduced by connecting a film capacitor with 0.1uF capacitance across the load terminals. For safety and EMI considerations, connect the FG terminal of GWS250 series to mounting set ground terminal.
  • Page 20 This product is under warranty for 5 years (based on 24 hours/day operation) from the date of shipment. During the warranty period, TDK-Lambda will, at it’s option, either repair or replace products prove to be defective. Warranty applies but not limited to the following.

This manual is also suitable for:

Gws250-24Gws250-36