TDK-Lambda RKY Series User manual

・All specifications are subject to change without notice.
1
 RKY24-50R
■ Features
● 200V three-phase input
● Equipped with a function to vary output over a waide range
● Parallel operation and master/slave operation applicable
● Approved by safety standards (UL, C-UL)
● EMI: Complying with VCCI-A/EN55022-A, Immunity:
Complying with EN61000-4-2/3/4/5/6/8/11, EN61000-6-2
RKY SERIES
■ Product Line up
Three-phaseinput/singleoutput1500W
1500W
Output voltage Output current Model name
24V 50A RKY24-50R
36V 42A RKY36-42R
48V 32A RKY48-32R
■ Applications
Y
E
A
R
S
warranty
5
■ Model naming method
Maximum output current
50R : 50A
42R : 42A
32R : 32A
Nominal output voltage
24 : 24V
36 : 36V
48 : 48V
Series name
CSAC22.2No.60950-1（C-UL）
UL60950-1
This means that, in conformity with EU Directive 2002/95/
EC, lead, cadmium, mercury, hexavalent chromium, and
specific bromine-based flame retardants, PBB and PBDE,
have not been used, except for exempted applications.
■ Conformity to RoHS Directive
医 療 計 測 F A 半導体 その他
その他
ks
コンピュータ 通 信 F A 半導体
その他
ph
pf-a
hk-a
hws
alpha
dlp
fps
フォーマット
コンピュータ 通 信 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
医 療 計 測 F A 半導体 その他
その他
ks
コンピュータ 通 信 F A 半導体
その他
ph
pf-a
hk-a
hws
alpha
dlp
fps
フォーマット
コンピュータ 通 信 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
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コンピュータ 通 信 医 療 計 測 F A 半導体
その他
コンピュータ 通 信 医 療 計 測 F A 半導体
その他
001-01/20080421/etl_rky

RKY 1500W
・All specifications are subject to change without notice.
2
RKY
ITEMS/UNIT MODEL RKY24-50R RKY36-42R RKY48-32R
Input
Voltage Range (Nominal: 100-240VAC) V AC170-265
Frequency
(Nominal: 50-60 3-phase) Hz 47-66
Power Factor (typ) 0.95
Efficiency (200VAC)(typ) ％87 88 90
Current (200-240VAC)(typ) A 4 5
Inrush Current (200-240VAC) (max) (*3) A 35
Leakage Current 240VAC(UL,IEC) (max) (*10) mA 1.3
Output
Nominal Voltage VDC 24 36 48
Maximum Current (*1) A 50 42 32
Maximum Power W 1200 1512 1536
Maximum Line Regulation
(Within input voltage range)(max/typ)
0.2%/0.1%
Maximum Load Regulation
(0-100% load)(max/typ)
0.4%/0.2%
Temperature Coefficient
(Ambient temperature -10℃to +65℃)(max/typ)
％1.0/0.5
Warm Up Drift (max/typ) (*4) ％0.5/0.2
Maximum Ripple Voltage (max) (*2) mVp-p 200 300
Maximum Ripple & Noise (max) (*2) mVp-p 300 400
Start Up Time (200VAC)(typ) ms 400
Hold-up Time (200VAC)(typ) ms 20 24 16
Voltage Adjustable Range VDC 16.8-31.2 25.2-55.0 33.6-55.0
Function
Over Current Protection (*6) A 52.5-57.5 44.1-48.3 33.6-36.8
Over Voltage Protection (*5) VDC 32-36.4 56-60
Over Temperature Protection (*5) Available
Remote Sensing (*9) Available
Remote ON/OFF Control (*8) Available
Parallel Operation Applicable (current balance function and master/slave operation are supported; synchronized operation is not supported)
Series Operation Applicable
Operation Indicator Available (green LED)
Variable Output Voltage (*7) Available
Monitoring Signal Available (power fail signal)
Open Phase Dectation
Available (Output is shut down and fans are stopped when 1 of 3 phases is lost.) Resumes by restarting input
or resetting RC after the causes are removed. Interval before restarting input should be 30s or over.
Low Output Voltage Dectation Not available
Fan Stop Protection Output is shut down if fans are stopped for approximately 20s. Resumes by restarting input or resetting RC.
Environment
Operating Temperature ℃-10 to +65
Storage Temperature ℃-30 to +75
Operating Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Storage Humidity ％RH 10-95 (the conditions of maximum 35°C in wet bulb temperature and non-condensation should be ensured.)
Vibration
5-10Hz, 10 minutes sweep, 10mmp-p total amplitude, 3 directions, 1h for each, in non-operation
10-200Hz, 10 minutes sweep, 19.6m/s² (2G) acceleration, 3 directions, 1h for each, in non-operation
Shock 294m/s² (30G), 11 ±5ms, 3 directions, 3 times for each, in non-operation
Isolation
Withstand Voltage
For 1 minute at ordinary temperature and humidity
Between input terminal and ground terminal: 2.0kVAC, 10mA cutout current
Between input terminal and output terminal: 3.0kVAC, 10mA cutout current
Between output terminal and ground (G): 500VAC, 20mA cutout current
Isolation Resistance
In 500VDC and 100MΩor over at ordinary temperature and humidity
Between input terminal and ground terminal, between input terminal and output terminal,
and between output terminal and ground terminal
Standards
Safety Standards Approved by UL60950-1, CSA C22.2 No.60950-1 (C-UL)
EMI Complying with FCC-Class A / VCCI-Class A / EN55011-A / EN55022-A
Immunity Complying with EN61000-4-2/3/4/5/6/8/11, EN61000-6-2
Mechanical
Weight max g 3,000
Size (W x H x D) mm 120 x 92 x 237
With nominal input/output voltage, maximum output current, and Ta=25°C, if not specied separately.
(*1) The maximum output current value is between -10°C and +50°C. For use in outside this temperature range, derating is
needed.
(*2) 2 times the value in 100MHz and at between -10°C and 0°C.
(*3) In primary surge current, and 30s or over in input interval.
(*4) 30min to 8h after the start of input voltage application.
(*5) Output voltage shutdown system and voltage resumes by restarting input or resetting RC.
(*6) Fixed current/voltage reduction system (current is shut down if over current condition continues for 30 seconds or over).
Resumes by restarting input or resetting RC.)
(*7) Short-circuit between REF and RV when not in use.
(*8) Short-circuit between +RC and -RC when not in use.
(*9) Short-circuit between +S/-S and +/-output terminals when not in use.
(*10) In operation: AC240V, 60Hz, complying with IEC60990-1. 1.9mA max. in phase lack
RKY1500W Specifications
● Recommended EMC Filter
RTEN-5010
Please refer to "TDK-Lambda
EMC Filters" catalog.

RKY 1500W
・All specifications are subject to change without notice.
3
Outline Drawing
(13)
16
(6.4)
7.62
(8.6)
10
237
120
UP
UP
100
±
0.5 (92)
45
100 ± 0.5
(10)10
AIR FLOW
(46)46
(60)
60
60 ± 0.5
(16)16
160
±
0.52025max. (57)
92
(35.4) (2.3)
(43)(9)
(7)
(55)
(12.5)
(12)
(17)
(21)
(12)
(71.7)(5.7)
(11.1)
(15.5)
(12.8)
(13)
(22)
+
-
+S
-S
REF
RV
CB
+PF-PF
+RC
-RC
L3
L2
L1
.ADJ
V
ON
8-M4 TAPS
(BOTH SIDE)
4-M4 TAPS
M4 × 8L M3
× 5.8L M5
× 12L
〔Detaildrawingofterminalblock〕
Unit:mm
Allowabletoleranceis1mmifnotspecifiedseparately.
Terminal No. Name and function
1 AC input terminal (L1, L2, L3) Connects to AC.200-240V three-phase AC input line.
2 Ground terminal (G) Connects to the ground line. This is connected to the case.
3 DC output terminal (+, -) Connects to the load line.
4 Remote sensing terminal (+S, -S) When the e󱐯ect of line-drop from power supply to load is a problem, compensation for line-drop can
be applied by remote sensing.
5 Reference terminal (REF)
This is the terminal of reference voltage for output voltage control, and is used in master/slave opera-
tions or in use of the variable output voltage function. Usually this terminal is short-circuited to the
RV terminal with a short piece.
6 Output voltage adjusting terminal (RV) Used for controlling output voltage by external signals.
7 Current balance terminal (CB) Used in parallel operation of power supplies. In this case, mutually connect the (CB) and (-S) terminals
of each unit.
8 Power fail terminal (+PF, -PF)
Emits the open mode signal when the output voltage becomes 80 % or lower than the set voltage.
Signals are also emitted when the output voltage is shut down due to activation of the detection cir-
cuit for output over voltage protection or fan-stop over temperature protection, or over current protec-
tion.
9 Remote On/O󱐯 terminal (+RC, -RC)
Output can be switched On and O󱐯 by opening/closing the connection between the ±RC terminals (output
is o󱐯 in open status). The RC terminal is oated. Usually the ±RC terminals is short-circuited with a short
piece.
10 Output voltage trimmer (V.ADJ) Output voltage can be varied.
11 LED output indicator (green) The LED is lit green when output voltage is generated.
・The insertion length of screws used in the M4 taps for mounting the power supply should be within 6mm from the
product surface.
1 2
+S
-S
REF
RV
CB
+PF-PF
+RC
-RC
L3
L2
L1
.ADJ
V
ON
9 8 7 6 5 4 3
10
11
Terminals

RKY 1500W
・All specifications are subject to change without notice.
4
Block Diagram
Output Power - Ambient Temperature (Derating)
Sequence Time Chart
PFsignaldetection(80%orunder)
30seconds
(TYP)
20seconds
(TYP)
30seconds
(TYP)
20seconds
(TYP)
0V
Vout
0V
H
L
L
H
Inputstart RemoteOff RemoteOn Inputshutdown Inputstart OVPactivated Inputshutdown Inputstart OCPactivated OCPactivated OCPshutdown Inputshutdown Inputstart Fanstop FanALMactivated Inputshutdown Inputstart Overtemperature protectionactivated Inputshutdown Inputstart OVPactivated RemoteOff RemoteOn OCPactivated OCPshutdown RemoteOff RemoteOn Fanstop FanALMactivated RemoteOff RemoteOn OCPdeactivated
OVPdetection
OCPdetectionpoint(105%orover)
OCP(shutdown)
OVPdetection
OCPdetectionpoint(105%orover)
OCP(shutdown)
Inputvoltage
Outputvoltage
RemoteOn/Off
control(*1)
PFsignal
(Opencollector)
(*1)Level
2.4V≦H≦24Voropen
0V≦L≦0.4Vorshorted
L1
L2
L3
+
–
+S
–S
RV
CB
+RC
–RC
AC input
Input
filter
circuit
Input
rectifier
circuit
Surge
current
control
circuit
Circuit
for
raising
voltag
Output
rectifying and
smoothing
circuit
Power factor
improvement
control circuit
DC output
RC
control
circuit
–PF
+PF
REF
Over
temperature
detection
circuit
Power
switch
circuit
Over
current
detection
circuit
Over
voltage
detection
circuit
Fan-stop
detection
circuit
Control circuit
Driving
circuit
Ambienttemperature(˚C)
20
40
60
80
100
ｰ20 ｰ10 0 10 20 30 40 50 6065 71
Outputpower
(%)
Operatablerange
(withoutguarantee)

RKY 1500W
・All specifications are subject to change without notice.
5
RKY series Instruction Manual
󱫀
Output voltage can be varied by an external trimmer or ex-
ternal voltage via the RV terminal. When using this function,
use twisted wires or shielded wires (-S should be shielded,
recommended length is 2m max.) for wiring from REF/RV/
-S terminals. Be careful about disconnection and mis-wiring.
Model by voltage (V) RV voltage (V) Variable range in output voltage (V)
24 0 to 6.5 0 to 130
36 0 to 5.75 0 to 115
48 0 to 5.75 0 to 115
How to use this function
● Remove the short plate between REF and RV.
● When varying output voltage by using an external trim-
mer
V.ADJ clockwise until it stops, and connect an external
trimmer (5kΩ) to REF, RV, and -S terminals, as shown
in gure (a) below.
● When varying output voltage by external voltage
Connect "+" of the external variable power supply to RV
terminal, and its "-" to -S terminal.
–
REF
External
trimmer
RV
)b()a(
+
+S
–S
–
REF
RV
+
+S
–S
–
+
Load
Load
External variable
power supply
󱫂 
This terminal has the monitoring function. When multiple
power supplies are in parallel operation and their CB termi-
nals and -S terminals are respectively mutually connected,
this function controls the output current of the power sup-
plies so that they become equal.
Between CB and -S terminals, voltage approximately propor-
tional to the output current is generated.
(1) Eualization condition
Output voltage uctuation in each power supply
(Maximum voltage - Minimum voltage)/Nominal volt-
age = 2% max.
Output current: 20-90% of nominal total output current
(2) Equalization performance (for 2 units)
Output current uctuation in each power supply under
the equalization conditions described above
(Maximum current - Minimum current)/(Nominal cur-
rent x Number of units in parallel operation) = 10% max.
(3) CB terminal connection diagram
The impedance of load line from each power supply
should, if possible, the same.
+
Load
–
CB
–S
RV
REF
+
+S
–
CB
–S
RV
REF
Use twisted wires or shielded wires (-S should be shielded)
for wiring from CB and -S. Parallel operation should be
congured with 4 units at maximum.
󱫄
By applying signals described below to the remote On/O󱐯
terminals (+RC, -RC), the output voltage can be switched
on and o󱐯 from outside the power supply.
The output voltage is switched o󱐯 and fans are stopped in
the condition of H level (open or 2.4-24V external voltage
application: 1.0mA max. inflowing current) between +RC
and -RC.
The output voltage is switched on in the condition of L
level (shorted or 0-0.4V voltage between terminals: 1.6mA
max. outowing current) between +RC and -RC.
±RC terminals are insulated from the AC input terminal
and DC output terminal.
The insulation between the ±RC terminals and the out-
puts conforms to the common specications of insulation
resistance (between output terminal and case (G)), and
the withstand voltage of the AC input terminal and the ±
RC terminals also conforms to the common specications
(withstand voltage between input terminal and case (G)).
+RC
–RC
1.6mA max
ON
OFF
Oninrelayshorted
Offinrelayopen
（Relaycircuit） （Semiconductorcircuit）
󱫆
Emits the signal when the output voltage drops to 80% or
lower than the set voltage.
Output is shut down and the power fail signal is emitted
when power supply protection functions are activated.

Sink current: 50mA max. Voltage between collector and
emitter: 40V max.
±PF terminals are insulated from the AC input terminal and
DC output terminal.
The insulation between the ±PF terminals and the outputs
is the same as the insulation resistance between the out-
1. Explanation of functions and notes

RKY 1500W
・All specifications are subject to change without notice.
6
put and the ground terminal), and the insulation between
the AC input terminal and the ±PF terminals is the same
as the insulation resistance between the input terminal and
the output terminal.
+PF
–PF
Device
circuit
Externalpowersupply(+VCC)
40V max.
󱫈
Protection functions Operations
OV
Output over voltage
protection
When the output voltage rises to level that is too
high, this function stops the fans. Operation can
be resumed by removing the causes, and then
performing the following: Setting the remote
on/o󱐯 terminal to H level once, and again setting
it to L level. Or, shutting down input once, and
restarting input after 40s or over have passed.
OC
Output over current
protection
When the over current status continues for over
30s, this function shuts down the output and stops
the fans. For cases with this status within 30s,
operation resumes automatically. The procedures
for manual resumption are the same as in the
case of OV above.
FAN
Fan stop protection
When the rotation of fans stops, this function
shuts down the output. The procedures for
resumption are the same as in the case of OV
above. Note that resumption is not possible if
there is any trouble in the rotation of fans.
TH
Over temperature
protection
When the temperature inside the power supply
unit rises to level that is too high, this function
shuts down the output and stops the fans. For
resumption, shut down input once, and restart
input after 40s or over have passed. Note that
resumption is not possible if the temperature
inside the power supply unit has not lowered
su󱐰ciently.
󱫊
When in redundant operation of power supply, connect a
diode to the end of the power supply's output. The imped-
ance of load line from each power supply should, if pos-
sible, be the same.
Use twisted wires or shielded wires (-S should be shielded)
for wiring from CB and -S. The maximum number of the
units to be connected is 4.
Load
REF
RV
CB
–
–S
+
+S
REF
RV
CB
–
–S
+
+S
󱫌
M aster/slave operation is applicable by using REF and RV
terminals. Connect the REF termnial of the power supply
unit to be the master and the RV terminal of the power
supply unit to be the slave, and mutually connect the -S
terminal of each device, as shown in the gure below. Out-
puts of all the power supply units can be varied according
to V.ADJ of the master power supply unit. The maximum
number of units to be connected is 4.
●In the case of multiple output loads
Use twisted wires or shielded wires (-S should be shielded)
for wiring from RV and -S.
Load
+
+S
Master Slave
–
CB
–S
RV
REF
+
+S
–
CB
–S
RV
REF
+
+S
–
CB
–S
RV
REF
Load Load
●In the case of one output load
The impedance of load line from each power supply
should, if possible, be the same.
Use twisted wires or shielded wires (-S should be shielded)
for wiring from RV and -S.
Load
+
+S
–
REF
RV
CB
–S
Master Slave
+
+S
–
REF
RV
CB
–S
+
+S
–
REF
RV
CB
–S
󱫎 
Insulation/withstand voltage test can cause deterioration.
Due consideration should be given when implementing a
test. It is necessary keep the electric potential equal within
inputs, within outputs, and within FGs (frame grounds), re-
spectively.
As a testing device, it is the type which starts up gradually
when in test on and automatically discharges the charged
energy when in test o󱐯. If discharging after the test is to be
conducted manually, it should be conducted via approxi-
mately 100kΩ-1MΩ resistance (Note that discharging via
low impedance should be avoided because it can cause
deterioration).
Due attention should be paid to measures to prevent elec-
tric shock in any case.
● Power supply terminal connections for insulation/
withstand voltage test
Short-circuit each terminal of outputs and inputs.
+S
-S
REF
RV
CB
+PF-PF
+RC
-RC
L3
L2
L1
.ADJ
V
ON
1
Inputs
2
FG
3 Outputs

・All specifications are subject to change without notice.
7
● Connections between testing device and power
supply for insulation/withstand voltage test
Make connections between the testing device and power
supply unit as shown in the table below. And then conduct
a test.
Test conditions
Insulation testing device Withstand voltage testing device
+terminal -terminal +terminal -terminal
Insulation between
Input and FG 1 2 ― ―
Insulation between
Input and Output 1 3 ― ―
Insulation between
Output and FG 3 2 ― ―
Withstand voltage
between
Input and Output
― ― 1 3
Withstand voltage
between
Input and FG
― ― 1 2
Withstand voltage
between
Output and FG
― ― 3 2
2. Mounting
(1) Standard mounting (horizontal) (3) (vertical)(2) (vertical)
Input terminal
50mm min.
FAN airflow
FAN
Keep50mmormoredistancebetweenthefanside
andadjacentdevice.Alsolocatetheunitinaposition
where the thermal exchange between the unit and
externalairiseffective.
Donotblocktheholesforairflowonthefrontpanel
andtheairfloworificeonthefanside.
Power supply
Front Rear
Holes for airflow
Airflow orifice
RKY 1500W

・All specifications are subject to change without notice.
8
● Is the specied input voltage applied to the input termi-
nal?
● Are the connections of input/output terminals correct?
● Check that the connecting wires are not too thin.
● Check that the output voltage trimmer (V.ADJ) is not
turned up too high. If the output voltage trimmer (V.ADJ)
is turned up too high, it causes the OVP function to be
activated, and the output is shut down.
● Are the logic values of the Remote On/O󱐯 function and
external voltage application set correctly?
● Check that the remote sensing terminal is not open.
Applying input voltage in its open status may cause the
OVP function to be activated, and the output to be shut
down.
4. Troubleshooting
RKY 1500W
● When using this product, confirm that the power sup-
ply's ambient temperature is within the range of operat-
ing temperatures. The power supply's ambient tempera-
ture means the temperature around the power supply
unit, causing a temperature rise inside the device.
● Keep a distance of 10mm or over from adjacent devices,
for each side of the unit.
● Select input/output wire materials and noise lters, etc.
which have enough allowance in their respective cur-
rent capacity.
● If the power supply unit is not in use for a long period
of time, it is recommended to apply input voltage for ap-
proximately 1 hour, every 2 years, to keep the quality of
the electrolytic capacitor.
● When the power supply units are used in a series opera-
tion, the nominal current is restricted according to the
lowest nominal current value of the units in use. In ad-
dition, in order to prevent damage to internal elements
and others due to reverse voltage applied to the unit,
connect a diode (reverse withstand voltage: twice or
over the value of total output voltage, forward current:
twice or over the value of output current, forward volt-
age drop: possibly minimum) to prevent reverse voltage
to the output terminal of the unit.
● Any materials used in this product do not contain the
bromine re retardant (PBDPEs, PBBs).
● Any ODS is not used in production of this product.
3. Precautions in use