TDK-Lambda RWS 1500B Series User manual

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
BEFORE USING THE POWER SUPPLY UNIT (Common)
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.
INSTALLATION WARNING
• When installing, ensure that work is done in accordance with the instruction manual. When installation is
improper, there is risk of electric shock and fire.
• Installation shall be done by Service personnel with necessary and appropriate technical training and
experience. There is a risk of electric shock and fire.
• Do not cover the product with cloth or paper etc. Do not place anything flammable around. This might cause
damage, electric shock or fire.
WARNING on USE
• Do not touch this product or its internal components while circuit in operation, or shortly after shutdown. You
may receive a burn.
• While this product is operating, keep your hands and face away from it as you may be injured by an
unexpected situation.
• There are cases where high voltage charge remains inside the product. Therefore, do not touch even if they are
not in operation as you might get injured due to high voltage and high temperature.
You might also get electric shock or burn.
• Do not make unauthorized changes to this product nor remove the cover as you might get an electric shock or
might damage the product. We will not be held responsible after the product has been modified, changed or
disassembled.
• Do not use this product under unusual condition such as emission of smoke or abnormal smell and sound etc.
Please stop using it immediately and shut off the product.
It might lead to fire and electric shock. In such cases, please contact us. Do not attempt repair by yourself, as it
is dangerous for the user.
• Do not operate and store these products in environments where condensation occurs due to moisture and
humidity. It might lead fire and electric shock.
• Do not drop or apply shock to this product. It might cause failure. Do not operate these products mechanical
stress is applied.
CAUTION on MOUNTING
• Confirm connections to input/output terminals are correct as indicated in the instruction manual before
switching on.
• Input/output line, please use the wires as short and thick as possible.
• Do not use this product in special environment with strong electromagnetic field, corrosive gas or conductive
substances and direct sunlight, or places where product is exposed to water or rain.
• Mount this product properly in accordance with the instruction manual, mounting direction and shall be
properly be ventilated.
• Please shut down the input when connecting input and output of the product.
• When installing in environment where conductive foreign, dust and liquid may be present,
please consider penetration of above foreign material in the power supply by installing filter, to prevent trouble or
malfunction.
1/23 A2730401F
RWS 1000B•1500B Series
Instruction Manual

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
CAUTION on USE
• Product individual notes are shown in the instruction manual. If there is any difference with common notes
individual notes shall have priority.
• Before using this product, be sure to read the catalog and instruction manual. There is risk of electric shock or
damage to the product or fire due to improper use.
• Input voltage, Output current, Output power, ambient temperature and ambient humidity should be kept within
specifications, otherwise the product will be damaged, or cause electric shock or fire.
•If the builtin fuse is blown, do not use the product even after replacing the fuse as there is risk of abnormality
inside. Be sure to request repair to our company.
•For products without builtin protection circuit (element, fuse, etc.), insert fuse at the input to prevent smoke,
fire during abnormal operation.
As for products with builtin protection circuit, depending on usage conditions, builtin protection circuit might
not work. It is recommended to provide separate proper protection circuit.
•For externally mounted fuse do not use other fuses aside from our specified and recommended fuse.
•This product was made for general purpose electronic equipment use and is not designed for applications
requiring high safety (such as extremely high reliability and safety requirements. Even though high reliability
and safety are not required, this product should not be used directly for applications that have seriuos risk for
life and physical safety. Take sufficient consideration in failesafe design (such as providing protective circuit
or protective device inside the system, providing redundant circuit to ensure no instability when single device
failure occurs).
•When used in environments with strong electromagnetic field, there is possibility of product damage due to
malfunction.
•When used in environment with corrosive gas (hydrogen sulfide, sulfur dioxide, etc.) , there is possibility that
they might penetrate the product and lead to failure.
•When used in environments where there is conductive foreign matter or dust, there is possibility of product
failure or malfunction.
•Provide countermeasure for prevention of lightning surge voltage as there is risk of damage due to abnormal
voltage.
•Connect together the frame ground terminal of the product and the ground terminal of the equipment for safety
and noise reduction. If these ground is not connected together, there is risk of electric shock.
•Parts with lifetime specifications (builtin fan, electrolytic capacitor) are required to be replaced periodically.
Set the overhaul period depending on the environment of usage and perform maintenance.
Also, note that there are cases when EOL products cannot be overhauled.
•Take care not to apply external abnormal voltage to the output. Especially, applying reverse voltage or
overvoltage more than the rated voltage to the output might cause failure, electric shock or fire.
• This product have a builtin fan for aircooling. Do not block the air intake and exhaust as this might lead to
fire.
• This product have possibility that hazardous voltage may occur in output terminal depending on failure mode.
The output of these products must be protected in the end use equipment to maintain SELV.
Special Instructions for IEC/EN/ES/CSA 606011 [For RWS1000B/ME, RWS1500B/ME]
• There products are designed for continuous operation within an overall enclosure, and must be mounted such
that access to the mains terminals is restricted.
• These products are not suitable for use in the presence of flammable anesthetics mixtures with air or with
oxygen, or with nitrous oxide.
• The output circuit has not evaluated for connecting to Applied Parts. For end products intended to connect the
output circuit to Applied Parts, suitable evaluation of the separation, leakage current, dielectric voltage
withstand, and related requirements should be conducted.
• The input circuit includes only one fuse in the Line conductor. Consideration shall be given in the enduse
product regarding addition of the second fuse having the same or better characteristics in order to comply with
fusing requirements of Clause 8.11.5 of the Standard.
• These products provide One Means Of Patient Protection (1MOPP) between Primary/Secondary and FG, and
Two Means Of Patient Protection (2MOPP) between Primary and Secondary.
2/23

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
Note
• Take note that traces of sheet metal processing be left in our power supplies.
•When disposing product, follow disposal laws of each municipality.
•Published EMI (CE, RE) or immunity is the result when measured in our standard measurement conditions and
might not satisfy specification when mounted and wired inside enduser equipment.
Use the product after sufficiently evaluating at actual enduser equipment.
• When exporting our products, apply for necessary permissions as required by rules and regulations of Foreign Exchange
and Foreign Trade Control Act.
• Catalogue, contents of the instruction manual may be changed without a prior notice. Refer to latest catalogue or
instruction manual.
• Reproduction or reprinting the instruction manual or its portion is forbiddne without our permission.
•CE Marking
CE Marking, when applied to a product covered by this handbook, indicates compliance with the low voltage
directive.
STORAGE METHOD AND STORAGE PERIOD
• Store in original package
• Prevent excessive vibration, impact and external force from being applied during storage.
• Store in an area out of direct sunlight
• Temperature and humidity should be within range of product specification (with no condensation)
• Storage period should be up to two years from receiving.
3/23

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
1. Model name identification method
RWS 1000B  12 /□
Option (*1)
Rated Output Voltage
Output Power type
Series Name
2. Terminal Explanation
Top side screw (Shipment condition) Front side screw
Standard
N : Input terminal Neutral line (M3.5 screw)
L : Input terminal Live line (Fuse in line) (M3.5 screw)
: Earth terminal (M3.5 screw)
V :  Output terminal
(62.5A max. / terminal, M5 screw)
+V : + Output terminal
(62.5A max. / terminal, M5 screw)
Output voltage adjustment trimmer
Output monitoring indicator (Green LED)
Terminal cover 1
Terminal cover 2
Signal connector CN83
Signal connector CN84
4/23
(*1) Blank : Standard
/R : Remote ON/OFF control
/FO : Power Fail (PF) signal
Parallel Operation
/RFO : Remote ON/OFF control
Power Fail (PF) signal
Parallel Operation
/RF : Reverse fan (Intake air)
/ME : Approved by safety standards
for medical equipment
/S : Remote ON/OFF control
Standby supply
1
2
3
7
6
5
4
8
9
10
8
9
4
5
731
2
4
5
6
10
8
9
11
11

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
CN83, CN84 Connector pin Configuration and Function
CN83 and CN84 are same pin configuration and function (Standard and option model exclude /S).
They are connected to each other in this power supply unit.
When the pin of CN83 side is shorted, the same function pins of CN84 side are also shorted.
Please note that the function cannot be separately set with CN83 and CN84.
* CN83, CN84 Connector (JST)
Hand Crimping Tool : YRS620 (SPHD002TP0.5) (JST) or YC610R (SPHD001TP0.5) (JST)
Use maker recommended crimping tool.
These are connected by short pieces at time of shipment.
CN83 : "+Vm" terminal (Pin No.1) to "+S" terminal (Pin No.2)
"Vm" terminal (Pin No.9) to "S" terminal(Pin No.10)
5/23
9
7
5
3
1
8
6
4
2
10
CN83,CN84
No. Configuration Function
1 +Vm Output monitor terminal (+V). Internally connected to +Output terminal.
(+Vm terminal can not supply load current.)
2 +S
Remote sensing terminal for +output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to +Vm terminal when
remote sensing function unnecessary.)
3 NC Do not connect. If connected may cause malfunction.
4 NC Do not connect. If connected may cause malfunction.
5 NC No connection
6 NC No connection
7 NC Do not connect. If connected may cause malfunction.
8 NC No connection
9 Vm GND for Output monitor terminal. Internally connected to Outp ut
terminal. ( Vm terminal can not supply load current.)
10 S
Remote sensing terminal for output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to Vm terminal when
remote sensing function unnecessary.)
Housing Terminal Pin
PHDR10VS SPHD002TP0.5 (AWG24 ~ 28) or
SPHD001TP0.5 (AWG22 ~ 26)
Connector
S10BPHDSS

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
/FO, /RFO
CN83, CN84 : PF signal, Parallel operation setup
Remote ON/OFF control (Only /RFO)
* CN83, CN84 Connector (JST)
Each other terminals are same as standard model.
These are connected by short pieces at time of shipment.
CN83 : "+Vm" terminal (Pin No.1) to "+S" terminal (Pin No.2)
"Vm" terminal (Pin No.9) to "S" terminal(Pin No.10)
/R
CN83, CN84 : Remote ON/OFF control
* CN83, CN84 Connector (JST)
Each other terminals are same as standard model.
These are connected by short pieces at time of shipment.
CN83 : "+Vm" terminal (Pin No.1) to "+S" terminal (Pin No.2)
"Vm" terminal (Pin No.9) to "S" terminal(Pin No.10)
6/23
10
9
7
5
3
1
8
6
4
2
10
CN83,CN84
10
No. Configuration Function
1 +Vm Output monitor terminal (+V). Internally connected to +Output terminal.
(+Vm terminal can not supply load current.)
2 +S
Remote sensing terminal for +output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to +Vm terminal when
remote sensing function unnecessary.)
3 +R Remote ON/OFF control terminal (Only /RFO). Do not connect for /FO. If
connected may cause malfunction.
4 R GND for Remote ON/OFF control terminal (Only /RFO). Do not connect
for /FO. If connected may cause malfunction.
5 +PF
Power fail signal (PF signal) output terminal.
(Op en collector output. As the output voltage drops or FAN stop and AC
input voltage down, "PF" signal will be "High".)
6 PF GND for PF signal.
7 COM Current balance terminal. (For current balancing in parallel operation.)
8 PC Current balance terminal. (For current balancing in parallel operation.)
9 Vm
GND for Output monitor terminal. Internally connected to Output
terminal.
( Vm terminal can not supply load current.)
10 S
Remote sensing terminal for output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to Vm terminal when
remote sensing function unnecessary.)
No. Configuration Function
1 +Vm Output monitor terminal (+V). Internally connected to +Output terminal.
(+Vm terminal can not supply load current.)
2 +S
Remote sensing terminal for +output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to +Vm terminal when
remote sensing function unnecessary.)
3 +R Remote ON/OFF control terminal.
4 R GND for Remote ON/OFF control terminal.
5 NC No cnnection
6 NC No cnnection
7 NC Do not connect. If connected may cause malfunction.
8 NC No cnnection
9 Vm GND for Output monitor terminal. Internally connected to Output
terminal. ( Vm terminal can not supply load current.)
10 S
Remote sensing terminal for output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to Vm terminal when
remote sensing function unnecessary.)
9
7
5
3
1
8
6
4
2
10
CN83,CN84

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
/S
CN83 : Remote ON/OFF control
CN84 : Remote ON/OFF control
Standby supply
* CN83, CN84 Connector (JST)
Each other terminals are same as standard model.
These are connected by short pieces at time of shipment.
CN83 : "+Vm" terminal (Pin No.1) to "+S" terminal (Pin No.2)
"Vm" terminal (Pin No.9) to "S" terminal(Pin No.10)
CN84 : "+R" terminal (Pin No.3) to "+STB" terminal (Pin No.6)
"R" terminal (Pin No.4) to "STB" terminal (Pin No.10)
7/23
No. Configuration Function
1 +Vm Output monitor terminal (+V). Internally connected to +Output terminal.
(+Vm terminal can not supply load current.)
2 +S
Remote sensing terminal for +output.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to +Vm terminal when
remote sensing function unnecessary.)
3 +R Remote ON/OFF control terminal.
4 R GND for Remote ON/OFF control terminal.
5 NC No cnnection
6 NC No cnnection
7 NC Do not connect. If connected may cause miss operation.
8 NC No cnnection
9 Vm GND for Output monitor terminal. Internally connected to Output
terminal. ( Vm terminal can not supply load current.)
10 S
Remote sensing terminal for output side.
(For remote sensing function, which compensates for line drop between
power supply terminals and load terminals. Connect to Vm terminal when
remote sensing function unnecessary.)
No. Configuration Function
1 NC No cnnection
2 NC No cnnection
3 +R Remote ON/OFF control terminal.
4 R GND for Remote ON/OFF control terminal.
5 +STB Standby supply (5V/1A).
6 +STB Standby supply (5V/1A).
7 NC Do not connect. If connected may cause miss operation.
8 NC No cnnection
9 STB GND for Standby.
10 STB GND for Standby.
9
7
5
3
1
8
6
4
2
10
CN83
9
7
5
3
1
8
6
4
2
10
CN84
11
10

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
3. Block Diagram
•Circuit topology, switching frequency
HalfBridge converter
RWS1000B : 95kHz (fixed)
RWS1500B : 83kHz (fixed)
PFHC circuit : active filter
65kHz (fixed)
•Fuse rating
RWS1000B : 20A
RWS1500B : 30A
8/23
COM
PC
Line Filter
Rectifier
Inrush Current Limit Circuit
Filter
Control Circuit
L
N
OCP
Circuit
Photo
coupler
Rectifier & Filter
Input
85～265VAC
+V
Output
+S
S
V
+Vm
Vm
+R
R
/R
Remote ON/OFF
Control
Control Circuit
Output
Sensing
+PF
PF
OVP
Circuit
Photo
coupler
Photo
coupler
OVP
Sensing
FAN
Fan Detection
Low output
Voltage
Detection
/FO
Output
Current
Balance
/RFO
Standby
supply
+STB
STB
/S
PFHC Circuit
Switching Circuit
Photo
coupler

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
4. Sequence time chart
(*1) OVP point : 115%～145%
Please refer specification for detail OVP point.
(*2) Target option : /R, /RFO, /S
Level
Higher than 4.5V : Output on
Lower than 0.5V : Output off
This sequence is using external voltage.
(*3) Target option : /FO, /RFO
(*4) Target option : /S
9/23
PF
PF Signal (*3)
(Open collector）
0V
Vout
0V
Input on
Input off
Input on
Input off
OVP point (*1)
Input Voltage
Output Voltage
PF monitor point
Remote ON/OFF
Control (*2)
+R
R
Remote off
Remote on
OVP act on
OCP act on
OCP reset
+PF
OCP act on
Delay shutdown
Remote off
Remote on
Fan stop
5V
0V
Standby voltage (*4)
7sec(typ)

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
5. Connecting method
Pay attention to the input wiring. If it is connected to wrong terminal, the power supply will be damaged.
•Input must be off when making connections.
•Connect terminal to earth (frame ground of the equipment etc.) by thick wire for safety and improvement
of Noise sensitivity.
Standard
• Basic connection (Local sensing)
Connect "+S" terminal (Pin No.2) to "+Vm" terminal (Pin No.1), and "S" terminal (Pin No.10) to "Vm"
terminal (Pin No.9) with the attached short pieces. (Short pieces are mounted at time of shipment.)
Recommended torque : M3.5 screw 1.0N·m (10.2kgf·cm) ~ 1.6N·m (16.3kgf·cm)
M5 screw 2.0N·m (20.4kgf·cm) ~ 2.4N·m (24.4kgf·cm)
• Remote sensing connection
1) Connect "+S" terminal (Pin No.2) to "+" output Terminal of load with wires.
2) Connect "S" terminal (Pin No.10) to "" output Terminal of load with wires. (Sensing lines shall be
twisted.)
*If remote sensing terminals are opened, the output will rise and shut down.
10/23
Load
Load
B
A
(Only CN83 for /S)
9
7
5
3
1
8
6
4
2
10
CN83 or CN84
9
7
5
3
1
8
6
4
2
10
A
B
(Only CN83 for /S)
CN83 or CN84

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
/R, /RFO, /S
• Remote ON/OFF control
Connect voltage between " +R" terminal (Pin No.3) and "R" terminal (Pin No.4) for remote
ON/OFF control. (ON/OFF control lines shall be twisted.)
/FO, /RFO
•Parallel operation
Connecting PC to PC terminal (Pin No.8) and COM to COM terminal (Pin No.7), the current balancing
function activates and output current of each power supply is equivalently supplied to load. Wires to
PC terminals, COM terminals shall be as short as possible and same length and twisted.
•PF signal output
PF signal is open collector output. Use as shown below. (Signal lines shall be twisted.)
11/23
CN83 or CN84
9
7
5
3
1
8
6
4
2
10
CN83 or CN84
9
7
5
3
1
8
6
4
2
10
CN83 or CN84
9
7
5
3
1
8
6
4
2
10
Load
Load
Load
9
7
5
3
1
CN83 or CN84
8
6
4
2
10

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
6. Explanation of Functions and Precautions
61. Input Voltage Range
Input voltage range is single phase 85265VAC (4763Hz) or 120340VDC.
Input voltage, which is out of specification, might lead unit damage. For cases where conformance to various
safeties required, described as 100240VAC (5060Hz).
Output derating is required for AC input voltage less than 90VAC.
62. Output Voltage Range
Output voltage is set at the rated value. Output voltage within the range specified can be adjusted by V.ADJ
trimmer. Output voltage must be within spesification.
Turning the trimmer clockwise, the output voltage will be increased. Take note when the output voltage is
increased. Excessively, over voltage protection (OVP) function may trigger and voltage will be shut down.
Furthermore, when increasing the output voltage, reduce the output current as not to exceed the maximum
output power.
When the trimmer turns quickly at no load condition, the output voltage might become unstable. To maintain
the output voltage stable, flow the output current, or remove the input of power supply until the output be
shut down, and then reinput. Please turn the trimmer slowly during the output voltage adjustment.
63. Inrush Current
Thyristor method is used for limiting the inrush current. Higher current may flow when input turn on interval
is short.
First inrush current and second inrush current flow.
Please select input switch and external fuse carefully.
64. Over Voltage Protection (OVP)
The OVP function is inverter shut down method and manual reset type. OVP function operates within
Specification.
When OVP triggers, the output will be shut down. To reset OVP, remove the input of power supply for a few
minutes, and then reinput. Or, use Remote ON/OFF reset on option model /R and /RFO only (Remote : OFF to
ON). In addition, the setting value of OVP is fixed and not adjustable. Never apply higher voltage externally to
the output terminal to avoid unit failure. In case of inductive load, put protective diode in series to the output
power line.
65. Over Current Protection (OCP)
Constant current limit with automatic recovery.
OCP function operates when the output current exceeds 105% of maximum DC output current of specification.
The outputs will be automatically recovered when the overload condition is removed. Never operate the unit
under over current or shorted conditions, which may lead unit damage. OCP setting is fixed and cannot be
adjusted externally.
66. Delay Shut Down
This product have a delay shut down function provided to protect power supply and equipment at the time
when the output current exceeds maximum DC output current of specification. When the product operate
over current condition for more than 5 seconds, delay shut down function operates and the output will be shut
down.
To reset delay shut down, remove the input of power supply for a few minutes, and then reinput. Or, use
Remote ON/OFF control reset on option model /R, /RFO and /S only ( Remote : OFF to ON).
Delay Shut Down Time value is fixed and not to be adjusted externally.
67. Over Temperature Shut Down
Over temperature shut down function is provided.
When ambient or internal temperature rises abnormally, over temperature shut down function operates and
output will be shut down. After shut down, remove the input and cool it down to reset over temperature shut
down, and then reinput. Over temperature shut down function operates at out of the specification area.
This function may not activate or cannot avoid power supply damage depending on the situation.
12/23

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
68. Output Ripple &Noise
The standard specification for maximum ripple value is measured according to measurement circuit specified
by JEITARC9131C. When load lines are longer, ripple will becomes larger. In this case, electrolytic capacitor,
film capacitor, etc. might be necessary to use across the load terminal.
The output ripple cannot be measured accurately if the probe ground lead of oscilloscope is too long.
69. Series Operation
For series operation, either method (A) or (B) is possible.
Method (A) Method (B)
Note : E nsure that all units must be in operation. (Never use in condition that one of the units is not
operated.)
When connected the bypass diode, please select a bypass diode with maximum forward current
rating more than output load current. And maximum reveres voltage must withstand each power
supply output voltage.
13/23
Coaxial Cable
1.5 m 50Ω
C2
+Load
＋
－
150mm
C1
R1
C3
Oscilloscope
Power
Supply
Bandwidth : 20 MHz
C1 : 0.1uF Cap., Film
C2 : 47uF Cap., Elect.
C3 : 4700pF Cap., Ceramic
R1 : 50Ω

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
610. Parallel Operation
(A) Operation to increase the Output Current is not possible.
(B) Operation as a Backup System is acceptable.
1.Adjust the output voltage higher by the value of forward voltage drop (VF) of the diode.
2.Adjust each power supply output voltage to be same.
3.Output voltage and output power should be used within specifications.
4.Use blocking diode to prevent reverse current. Diode current rating must be more than output load current.
(A) (B)
/FO,/RFO
Current balancing function is provided on option model /FO and /RFO. Both operations mode (A) and (B) are
possible.
(A) To Increase the Output Current
Connecting PC to PC terminal and COM to COM terminal, the current balancing function activates and
output current of each power supply is equivalently supplied to load. Wires to PC terminals, COM
terminals shall be as short as possible and same length and twisted.
1. Adjust the output voltage of each power supply to be same value within 1%.
2. Use same length and type of wires for all load lines.
3. Maximum value of output current in parallel is up to 90% of all paralleled models.
Output current of each power supply must be within output derating.
4. Parallel operation is possible up to 5 units.
5.There is a possibility that output voltage dips at dynamic load change.
(B) To Use as a Backup Power Supply
1. Adjust the output voltage higher by the value of forward voltage drop (VF) of the diode.
2. Adjust each power supply output voltage to be same.
3. Output voltage and output power should be used within specifications.
4.Use blocking diode to prevent reverse current. Diode current rating must be more than output load current.
14/23
+S
+Vm
Vm
S
+V
V
+S
+Vm
Vm
S
+V
V
＋
Load
－
Power
Supply
Power
Supply
+S
+Vm
Vm
S
+V
V
+S
+Vm
Vm
S
+V
V
＋
Load
－
Power
Supply
Power
Supply

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
(A) (B)
611. Isolation Test
Isolation resistance between Output  terminal is more than 100MΩ at 500VDC. For safety operation, voltage
setting of DC isolation tester must be done before the test. Ensure that the unit is fully discharged after the test.
■ Output  terminal : 500VDC More than 100MΩ
Standard and option model exclude /S /S
612. Withstand Voltage
This series is designed to withstand 4.0kVAC between input and output, 2.0kVAC between input and
terminal, 1.5kVAC between output and terminal and 100VAC between output and R･PF･STB terminal
each for 1 minute. When testing withstand voltage, set current limit of withstand voltage test equipment at
20mA . The applied voltage must be gradually increased from zero to testing value and then gradually
decreased for shut down. When timer is used, the power supply may be damaged by high impulse voltage at
switch on and off timing. Connect input and output as follows.
15/23
+S
+ Vm
Vm
S
+V
V
+S
+ Vm
Vm
S
+V
V
＋
Load
－
PC COM
PC COM
Power
Supply
Power
Supply
Io
Vo+Vf Vo
Vo+Vf
+S
+Vm
Vm
S
+V
V
+S
+ Vm
Vm
S
+V
V
＋
Load
－
PC COM
PC COM
Power
Supply
Power
Supply
Output
Term.
Input
Term.
Isolation
Tester
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
+R
R
COM
PC
+PF
PF
Output
Term.
Input
Term.
Isolation
Tester
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
+R
R
+STB
STB

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
■ Input  Output (dotted line) : 4.0kVAC, 1min (20mA)
Input  terminal (solid line) : 2.0kVAC, 1min (20mA)
Standard and option model exclude /S /S
■ Output  terminal : 1.5kVAC, 1min (20mA)
Standard and option model exclude /S /S
■Output  CNT · PF : 100VAC 1min (20mA)
Standard and option model exclude /S /S
16/23
+Vm
+S
Vm
S
+R
R
COM
PC
+PF
PF
CN83
or
CN84
L
N
+V
V
Withstand
Voltage
Tester
Input
Term.
Output
Term.
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
+R
R
COM
PC
+PF
PF
Output
Term.
Input
Term.
Withstand
Voltage Tester
+Vm
+S
Vm
S
+R
R
+STB
STB
CN83
or
CN84
L
N
+V
V
Withstand
Voltage
Tester
Input
Term.
Output
Term.
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
+R
R
+STB
STB
Output
Term.
Input
Term.
Withstand
Voltage Tester
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
COM
PC
+R
R
+PF
PF
Withstand
Voltage Tester
Output
Term.
Input
Term.
CN83
or
CN84
L
N
+V
V
+Vm
+S
Vm
S
+R
R
+STB
STB
Withstand
Voltage Tester
Output
Term.
Input
Term.

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
Note : In case of using external noise filter, capacitance between "Input and terminal" might be increased.
When testing withstand voltage between "Input and Output", there is a possibility exceeding withstand
voltage between "Output and terminal" (1.5kVAC). Please check the voltage between
"Output and terminal". If the voltage exceeding withstand voltage, please add external capacitor to
"Output and ". It can decrease the voltage.
On the other hand, no need to check the voltage in case of "Output and terminal" is shorted.
17/23
External capacitor adding point
or short point.
Even in the case of ”+V and ”,
there is a similar effect.
The example of noise filter circuit that
may increasing capacitance value
between ”Input and terminal”.
(Capacitance value dashed line is added.)

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
613. Remote Sensing (+S, S terminal)
Remote Sensing function is provided.
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 line is too long, it is recommended to connect electrolytic capacitor in the following locations:
1) Across the load terminal,
2) Between "+S" terminal and "+Vm" terminal,
3) Between "S" terminal and "Vm" terminal.
Connect "+S" terminal to "+Vm" terminal, "S" terminal to "Vm" terminal with short pieces when remote
sensing function is not used. If disconnected, OVP function may trigger and voltage will be shut down.
614. Low Output Voltage Detection Signal (PF Signal)
Low output voltage detection signal is provided on option model /FO and /RFO. Power Fail (PF) signal will
turn “High” level to indicate the abnormal status when the output voltage becomes Less than 80% of rated
value caused by either the drop or brownout of the input voltage , OCP, OVP or Delay Shut Down operation.
When the builtin FAN motor of this power supply unit stops, PF signal will turn to “High”. The PF signal is
isolated from input and output by a photocoupler. It uses the open collector method shown in below.
615. Remote ON/OFF Control
Remote ON/OFF control function is provided on option model /R, /RFO and /S.
Using this function allows the user to turn the output on and off without having to turn the AC input off and on.
It is controlled by the voltage applied to +R and R. This circuit is in the secondary side of the power supply
unit.
Never connect to primary side.
/R, /RFO
18/23
+R & R terminal condition Fan condition
SW ON (Higher than 4.5V) Operate
SW OFF (Lower than 0.5V) Not Operate
Output condition
ON
OFF
External voltage : E
4.5 ~ 12.5VDC
12.5 ~ 24.5VDC
External resistance : R
No required
1.5kΩ
Vce max = 50V
Ic max = 5mA
E
Power supply
780Ω
+R
R
SW
R
R : External resistans
E : External voltage

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
/S
Circuit example (a)
Circuit example (b)
Circuit example (c)
616. Standby supply +STB STB terminal
Standby supply (5V, 1A) is provided to ease customer application. Standby supply voltage is functionally
isolated from all other signal terminals and output terminals, and it is always available as long as input power
in the specified voltage range is supplied.
Over Current Protection (OCP) is fold back limit and hiccup mode with automatic recovery.
OCP function operates when the output current exceeds 105% of maximum DC output current of specification. The
outputs will be automatically recovered when the overload condition is canceled. Never operate the unit under over current
or shorted conditions, which may leads damage or insulation failure. OCP setting is fixed and not to be adjusted externally.
The Over Voltage Protection (OVP) is inverter shut down method and manual reset type. OVP function operates
within 105%170%.
When OVP triggers, the output will be shut down. To reset OVP, remove the input of power supply for a few
minutes, and then reinput. In addition, the setting value of OVP is fixed and not adjustable. Never apply higher
voltage externally to the output terminal to avoid unit failure. In case of inductive load, put protective diode in
series to the output power line.
19/23
Power supply
780Ω
+R
R
+STB
5V
typ
STB
SW
SW
780Ω
+R
R
+STB
5V
typ
STB
R : External Resistor
R
E
Power supply
E
Power
supply
780Ω
+R
R
SW
R
R : External resistans
E : External voltage
+STB
5V
typ
STB
+R & R terminal condition Fan condition
SW ON (Higher than 4.5V) Operate
SW OFF (Lower than 0.5V) Not Operate
12.5 ~ 24.5VDC 1.5kW
Output condition
ON
OFF
External voltage : E External resistance : R
4.5 ~ 12.5VDC No required
+R & R terminal condition Fan condition
SW ON Operate
SW OFF Not Operate
Output condition
ON
OFF
+R & R terminal condition Fan condition
SW OFF Operate
SW ON Not Operate
External resistans : 220Ω
ON
OFF
Output condition

INSTRUCTION MANUAL
RWS1000B•1500B Series
TDKLambda
<Page>
7. Mounting Method
71. Mounting Method
(1) These models are forced air cooling type power supply. The power supply has ventilating holes. Keep a
space more than 50mm from the front side and back side of the power supply to the peripheral parts.
Standard and option model exclude /RF also keep a space more than 5mm between other surfaces and the
peripheral parts. / RF does not require a space.
The power supply may cause damage when it intake conductive material, dust and liquid. Never use
in the dusty environment.
・Standard and option model exclude /RF ・/RF
(2) The maximum allowable penetration of mounting screws is 5mm.
Incomplete thread of mounting screw should not be penetrated.
(3) Recommended torque for mounting screw.
M4 screw : 1.27N·m (13.0kgf·cm)
72. Output Derating according to the Mounting Directions
The standard mounting is direction (A). Direction (B), (C) and (D) are also possible. Please contact us for
other mounting directions.
Never use as mounting direction (E) and (F) shown below.
Refer to the output derating below, load (%) is percent of maximum output current value in a rated output
voltage.
■ Mounting direction
(A) Standard Mounting (C ) (D) (E) Not Possible
(B)
(F) Not Possible
20/23
Top
Fan
Front side
Output Terminal
Back side
More than 50mm More than 50mm
Air flow
More than 5mm
TERMINAL
INPUT
Front side
Back side
Air flow
Side Fan
Output Terminal More than 5mm
Top
Fan
Front side
Output Terminal
Back side
More than 50mm More than 50mm
Air flow
Front side
Back side
Air flow
Side Fan
Output Terminal