1.1 INTRODUCTION
First of all, thank you for purchasing DMRW series redundant power supply.
The DMRW series is a 1+1 hot-swappable / hot-pluggable redundant power supply. It
consists of,
1) complete metal frame
2) compact size power module
3) backplane
The DMRW series hot swappable redundant power supply offer maximum
300/350/375/400 watts. The power module is in compact size, and built-in a 40mm
ball bearing DC fan for better ventilation. Each power module is designed with 6
outputs (+3.3V, +5V, +12V, -5V, -12V, and +5Vsb) circuits. All you can see on the
backplane is just passive components and this is the key point for longer MTBF.
The units also offer a warning sub-system, including LED display, buzzer alarm, TTL
signal. It guides user the fast way to find out the power supply status.
When all the power modules operate normally, it balances the load share through its
parallel design, which increases the reliability of power system.
To really discover the power system and ease in using it, we recommend you to read
through this manual carefully.
1.2 PACKING
Your DMRW series should consist of the following,
a) DMRW series x 1
b) Accessory pack x 1
c) Product Manual x 1
1.3 MODEL DESINGATION
Model number identification
DMRW -6zzzy
MR --- mini redundant
6 --- 6 output channel (+3.3V, +5V, +12V, -5V, -12V & +5Vsb)
zzz --- total output power, zzz –300/350 / 375 / 400 (unit: watts)
y --- P: built-in PFC (full range)
1.4 FEATURES
DMRW series, 350W / 3750W / 400W, 1+1 mini redundant power supply with active
PFC.
l True redundant design (passive packplane)
l All circuit designed into the power module
l Hot-swap and hot-plug ability
l Full range (-36VDC – -72VDC) operation
l Balance load sharing design
l Remote sensing design
l Meet FCC, CISPR EMI regulation
l Faulty free- slide rail design
l Isolated fence design to meet safety regulation
l Compact size (PS2 form factor)
DMRW series, 300W / 350W / 375W / 400W, 1+1 mini redundant power supply
l Input: -48VDC
l True redundant design (passive packplane)
l All circuit designed into the power module
l Hot-swap and hot-plug ability
l Balance load sharing design
l Remote sensing design
l Meet FCC, CISPR EMI regulation
l Faulty free- slide rail design
l Isolated fence design to meet safety regulation
l Compact size (PS2 form factor)
1.5 DRAWING
1.6 SPECIFICATION
INPUT CHARACTERISTICS: DMRW-6300F
l VOLTAGE： DC －36V
l INPUT CURRENT：10.0A (RMS) FOR －48 VDC
l INRUSH CURRENT：20.0A MAX.
∼－
72V
OUTPUT CHARACTERISTICS：
OUTPUT CURRENT REGULATION
VOLTAGE
MIN MAX PEAK
+5V 3A 30A
-5V 0.1A 0.5A
+12V 2.5A 20A
-12V 0.1A 1.2A
+3.3V 1A 20A
+5VSB 0.1A 2.0A
LOAD LINE
±5% ±1%
±6% ±1%
±10% ±1%
±10% ±1%
±5% ±1%
±5% ±1%
OUTPUT
OUTPUT
RIPPLE &NOISE
MAX. [P-P]
50mV
120mV
120mV
150mV
50mV
50mV
REMARK: TOTAL CURRENT OF +5V AND +3.3V NOT EXCEED 45A
TOTAL OUTPUT POWER MAX 300W
SPECIFICATION:
l TEMPERATURE RANGE：OPERATING 10
l HOLD UP TIME：1.6mS MINIMUM AT FULL LOAD & NOMINAL INPUT VOLTAGE
l DIELECTRIC WITHSTAND：INPUT/OUTPUT 1500 VAC FOR 1 SECOND
INPUT TO FRAME GROUND 1500 VAC FOR 1 SECOND
l EFFICIENCY：65% TYPICAL，AT FULL LOAD
l POWER GOOD SIGNAL：ON DELAY 100mS TO 500mS，OFF DELAY 1mS
l OVER LOAD PROTECTION：110~160%
l OVER VOLTAGE PROTECTION：+5V→5.7V∼6.6V , +3.3V→3.9V∼4.3V, +12V→13V
14.6V
l SHORT CIRCUIT PROTECTION：+5V、+12V、+3.3V
l EMI NOISE FILTER : FCC CLASS A, CISPR22 CLASS A
l SAFETY : UL 60950., TUV EN-60950, IEC 60950
l REMOTE ON/OFF CONTROL
THE UNIT SHALL ACCEPT A LOGIC OPEN COLLECTOR LEVEL WHICH WILL
DISABLE/ENABLE ALL THE OUTPUT VOLTAGE (EXCLUDE +5V STAND BY).
AS LOGIC LEVEL IS LOW，OUTPUTS VOLTAGE WERE ENABLE，
AS LOGIC LEVEL IS HIGH，OUTPUTS VOLTAGE WERE DISABLE.
l DIMENSION：86*150*185 (H*W*D)mm
l COOLING: TWO 40mm DC FANS (MODULE)
l DC INLET IN EACH MODULE
℃∼40℃
∼
INPUT CHARACTERISTICS: DMRW-6350F
l VOLTAGE： DC －36V
l INPUT CURRENT：10.0A (RMS) FOR －48 VDC
l INRUSH CURRENT：20.0A MAX.
∼－
72V
OUTPUT CHARACTERISTICS:
OUTPUT
VOLTAGE
+5V 3A 32A
-5V 0.1A 0.5A
+12V 2.5A 25A
-12V 0.1A 1.2A
+3.3V 1A 25A
+5VSB 0.1A 2.0A
OUTPUT CURRENT REGULATION OUTPUT
MIN. MAX. PEAK LOAD LINE
±5% ±1%
±6% ±1%
±10% ±1%
±10% ±1%
±5% ±1%
±5% ±1%
RIPPLE &NOISE
MAX. [P-P]
50mV
120mV
120mV
150mV
50mV
50mV
REMARK: TOTAL CURRENT OF +5V AND +3.3V NOT EXCEED 45A
TOTAL OUTPUT POWER MAX 350W
SPECIFICATION:
l TEMPERATURE RANGE：OPERATING 10
l HOLD UP TIME：1.6mS MINIMUM AT FULL LOAD & NOMINAL INPUT VOLTAGE
l DIELECTRIC WITHSTAND：INPUT/OUTPUT 1500 VAC FOR 1 SECOND
INPUT TO FRAME GROUND 1500 VAC FOR 1 SECOND
l EFFICIENCY：65% TYPICAL，AT FULL LOAD
l POWER GOOD SIGNAL：ON DELAY 100mS TO 500mS，OFF DELAY 1mS
l OVER LOAD PROTECTION：110~180%
l OVER VOLTAGE PROTECTION：+5V→5.7V∼6.6V , +3.3V→3.9V∼4.3V, +12V→13V
14.6V
l SHORT CIRCUIT PROTECTION：+5V、+12V、+3.3V
l EMI NOISE FILTER : FCC CLASS A, CISPR22 CLASS A
l SAFETY : UL 60950., TUV EN-60950, IEC 60950
l REMOTE ON/OFF CONTROL
THE UNIT SHALL ACCEPT A LOGIC OPEN COLLECTOR LEVEL WHICH WILL
DISABLE/ENABLE ALL THE OUTPUT VOLTAGE (EXCLUDE +5V STAND BY).
AS LOGIC LEVEL IS LOW，OUTPUTS VOLTAGE WERE ENABLE，
AS LOGIC LEVEL IS HIGH，OUTPUTS VOLTAGE WERE DISABLE.
l DIMENSION：86*150*185 (H*W*D)mm
l COOLING: TWO 40mm DC FANS (MODULE)
l DC INLET IN EACH MODULE
℃∼40℃
∼
INPUT CHARACTERISTICS:
DMRW-6375F
l VOLTAGE： DC －36V
l INPUT CURRENT：11.0A (RMS) FOR －48 VDC
l INRUSH CURRENT：20.0A MAX.
∼－
72V
OUTPUT CHARACTERISTICS:
OUTPUT
VOLTAGE
+5V 3A 32A
-5V 0.1A 0.5A
+12V 2.5A 25A
-12V 0.1A 1.2A
+3.3V 1A 25A
+5VSB 0.1A 2.0A
OUTPUT CURRENT REGULATION OUTPUT
MIN. MAX. PEAK LOAD LINE
±5% ±1%
±6% ±1%
±10% ±1%
±10% ±1%
±5% ±1%
±5% ±1%
RIPPLE &NOISE
MAX. [P-P]
50mV
120mV
120mV
150mV
50mV
50mV
REMARK: TOTAL CURRENT OF +5V AND +3.3V NOT EXCEED 45A
TOTAL OUTPUT POWER MAX 375W
SPECIFICATION:
l TEMPERATURE RANGE：OPERATING 10
l HOLD UP TIME：1.6mS MINIMUM AT FULL LOAD & NOMINAL INPUT VOLTAGE
l DIELECTRIC WITHSTAND：INPUT/OUTPUT 1500 VAC FOR 1 SECOND
INPUT TO FRAME GROUND 1500 VAC FOR 1 SECOND
l EFFICIENCY：65% TYPICAL，AT FULL LOAD
l POWER GOOD SIGNAL：ON DELAY 100mS TO 500mS，OFF DELAY 1mS
l OVERLOAD PROTECTION：110~160%
l OVER VOLTAGE PROTECTION：+5V→5.7V∼6.6V , +3.3V→3.9V∼4.3V, +12V→13V
14.6V
l SHORT CIRCUIT PROTECTION：+5V、+12V、+3.3V
l EMI NOISE FILTER : FCC CLASS A, CISPR22 CLASS A
l SAFETY : UL 60950., TUV EN-60950, IEC 60950
l REMOTE ON/OFF CONTROL
THE UNIT SHALL ACCEPT A LOGIC OPEN COLLECTOR LEVEL WHICH WILL
DISABLE/ENABLE ALL THE OUTPUT VOLTAGE (EXCLUDE +5V STAND BY).
AS LOGIC LEVEL IS LOW，OUTPUTS VOLTAGE WERE ENABLE，
AS LOGIC LEVEL IS HIGH，OUTPUTS VOLTAGE WERE DISABLE.
l DIMENSION：86*150*185 (H*W*D)mm
l COOLING: TWO 40mm DC FANS (MODULE)
l AC INLET IN EACH MODULE
℃∼40℃
∼
INPUT CHARACTERISTICS: DMRW-6400F
l VOLTAGE： DC －40V
l INPUT CURRENT：12.0A (RMS) FOR －48 VDC
l INRUSH CURRENT：20.0A MAX.
∼－
72V
OUTPUT CHARACTERISTICS:
OUTPUT
VOLTAGE
+5V 3A 32A
-5V 0.1A 0.5A
+12V 2.5A 25A
-12V 0.1A 1.2A
+3.3V 1A 25A
+5VSB 0.1A 2.0A
OUTPUT CURRENT REGULATION OUTPUT
MIN. MAX. PEAK LOAD LINE
±5% ±1%
±6% ±1%
±10% ±1%
±10% ±1%
±5% ±1%
±5% ±1%
RIPPLE &NOISE
MAX. [P-P]
50mV
120mV
120mV
150mV
50mV
50mV
REMARK: TOTAL CURRENT OF +5V AND +3.3V NOT EXCEED 45A
TOTAL OUTPUT POWER MAX 400W
SPECIFICATION:
l TEMPERATURE RANGE：OPERATING 10
l HOLD UP TIME：1.6mS MINIMUM AT FULL LOAD & NOMINAL INPUT VOLTAGE
l DIELECTRIC WITHSTAND：INPUT/OUTPUT 1500 VAC FOR 1 SECOND
INPUT TO FRAME GROUND 1500 VAC FOR 1 SECOND
l EFFICIENCY：65% TYPICAL，AT FULL LOAD
l POWER GOOD SIGNAL：ON DELAY 100mS TO 500mS，OFF DELAY 1mS
l OVERLOAD PROTECTION：110%~160%
l OVER VOLTAGE PROTECTION：+5V→5.7V∼6.6V , +3.3V→3.9V∼4.3V, +12V→13V∼14.6V
l SHORT CIRCUIT PROTECTION：+5V、+12V、+3.3V
l EMI NOISE FILTER : FCC CLASS A, CISPR22 CLASS A
l SAFETY : UL 60950., TUV EN-60950, IEC 60950
l REMOTE ON/OFF CONTROL
THE UNIT SHALL ACCEPT A LOGIC OPEN COLLECTOR LEVEL WHICH WILL
DISABLE/ENABLE ALL THE OUTPUT VOLTAGE (EXCLUDE +5V STAND BY).
AS LOGIC LEVEL IS LOW，OUTPUTS VOLTAGE WERE ENABLE，
AS LOGIC LEVEL IS HIGH，OUTPUTS VOLTAGE WERE DISABLE.
l DIMENSION：86*150*185 (H*W*D)mm
l COOLING: TWO 40mm DC FANS (MODULE)
l DC INLET IN EACH MODULE
℃∼40℃
1.7 INSTALLATION & TESTING
Mount the power supply into the system chassis by using proper mounting tool. The
mounting holes of the power supply should match up with those in the chassis.
Connect the power connectors to the M/B by following the M/B instruction. There is
various on connectors / pinouts in both power supply and M/B. Please ensure to
connect the matched one; otherwise, it will cause unexpected harms.
Connect the remaining power connectors to the various peripherals as needed. These
connectors are “keyed”, so there will be only one possible way to connect them.
Before applying power source to the system, make sure these is no loosed or
incorrect connectors. Double check if all connection to the M/B is matched properly.
Maybe you would like to test the redundancy function before you put back the cover of
your system chassis, then, please power it on. If the power system operates normally,
the individual LEDs on power module and the external warning LED light in GREEN.
Now, remove one power module from the power system, the warning buzzer in the
power system will sound, the external warning LED, which displays the status of the
total power system, will change to be RED, the individual LED indicating the power
module’s status will distinguish. Meanwhile, the power system will continue to backup
the power output without affecting the operation of your computing system.
The warming buzzer will sound continuously. You can reset warning buzzer by
pressing the buzzer reset switch. Insert the power module which is removed for test
earlier. The sound of the warning buzzer will stop; the external warning LED will turn
to be GREEN again; the LED indicating the status of power module will light in
GREEN. Test another power supply by performing the same procedure.
If everything works out fine, then turn off the power system. Now put back the cover of
the chassis and tighten with the screws which you have retained earlier. Now you
have completed the installation of DMRW series redundant power supply.
1.8 Hot-swap procedures
Please refer to the following when either power module is defective.
1) Locate the defective power module by examining the individual LED (if LED is
distinguished, it indicates the power module is defective).
*** WARNING:
Please perform the following step carefully; otherwise, it may cause the whole system
shutdown.
*** WARNING:
Please do not remove the defective power module until you have worn gloves to keep
from been burned. This is due to the cover of the power module is used as heat sink
for cooling. Usually, its temperature is around 50-60 degree Celsius under full load
condition.
2) Loose the screws of power module bracket.
3) Plug out the defective power module.
*** WATNING:
Please put aside the power module to wait for cooling down. Keep other people from
toughing it until it is cooled.
4) Replace a new / GOOD power module. Insert the power module into the power
system till to the end.
5) Check the LED of the power module, which should be in GREEN.
6) Check the warning LED indicating the status of total power system, which should
be in GREEN.
7) Tighten the screws of the power module.
8) If you want to test this new power module and simulate the defective situation,
please refer to Section 1.7 Installation & Testing.
Remarks: If the DC fan of the power module fails, you have to replace the power
module. Please follow the Hot-Swap Procedures for replacement.
1.9 PINOUTS AND FUNCTION OF THE CONNECTORS
THE LED CONNECTOR OF TOTAL POWER SYSTEM
PIN# COLOR
1 RED
2 BLACK
3 GREEN
THE BUZZER RESET SWITCH CONNECTOR
PIN# COLOR
1 BLACK
2 YELLOW
THE SIGNAL CONNECTOR OF POWER RESET
PIN# COLOR COLOR
1 RED TTL SIGNAL
2 BLACK GND
TTL signal:
Sink current max. 5mA
Source current max. 50uA
Low Active ---Defective
High ---Normal
1.10 TROUBLE SHOOTING
If you have followed these instructions correctly, it should function normally.
Some common symptoms are, the system doesn’t work, buzzer alarms, shutdown
after running a very short period,… etc. If so, please check the following steps to verify
and correct it.
1) Check all connection (if pinouts is correct, if any connection loosed, if the direction
is incorrect,… etc.).
2) Check if any short-circuit or defective peripherals by plugging out the power
connector from each peripheral, one at a time. Shall the system functions again, you
have solved the problem.
3) Once you hear the buzzer sound or see the warning LED in RED, please check,
a) If the loading is under the minimum or over the maximum load of each
channel.
b) If the power source is well connected and supplied.
Shall the above condition is happened, please disconnect the power source and
wait for 2-3 minutes to release the protection status; then test it again.
c) If buzzer keeps alarming or LED indicates the power module failure, please
locate which power module is defective. Perform hot-swap procedures (ref. to
Sec. 1.8 Hot-Swap Procedures). Return the defective power module back to
your vendor for RMA procedure.
d) If you can not fix the problem, please contact your vendor for supporting.
Note:
* The description stated herein is subject to change without prior notice.
* All brand names and trademarks are the property of their respective owners.
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