2024年5月8日发(作者：公良文)
R4850G2 Rectifier User Manual V1.4
Environmental Specifications
Item
Operating
temperature
Storage
temperature
Relative humidity
Efficiency
Height x Width x Depth
Weight
Cooling
The peak point is ≥96%;
≥95%(230V AC,30%–100% load)
40.8 mm x 105 mm x 281 mm
(1.61 in. x 4.13 in. x 11.06 in.)
≤2kg
Built-in fan(The rotation of fan
depends on the internal
temperature.)
Specification
-40ºC to +75 ºC(referring
to Figure 3)
(–40°F to +167°F)
-40ºC to +75ºC(not
packaged)
(–40°F to +167°F)
5%-95% (non-condensing)
Altitude range ≤ 4000 m
Note: If the altitude is within the range of 3000 m to 4000 m, the maximum operating
temperature decreases by 1 °C (1.8°F ) as the altitude increases by 200 m.
Electrical Specifications
Item
Input
Operating voltage
Frequency
Rated input current
Power factor
85–300 VAC
45–66 Hz
Rated : 50Hz and 60 Hz
<17A
≥ 0.99(load≥50%
)
Specification
Description
The R4850G2 is a digital rectifier with high efficiency and
power converts 85–300 V AC input voltage to
53.5 V DC output voltage. The output voltage can be
adjusted by the host.
It performs comprehensive protection functions, supports
soft start, and produces low noise. With the latest power
monitoring technology, states of the rectifier and load are
monitored in real time.
Multiple rectifiers can be paralleled.
THD
Output
≤ 5％(load≥50% )
Output voltage
Output power
42–58 VDC
Rated voltage: 53.5 VDC
3000 W (176–290 VAC);
1250 W (85–175 VACdecreased
linearly)
≤±0.6%Vo
≤ 200 mVp-p
(Bandwidth≤20MHz)
Over shoot:≤ ±5% Vo
Recovery time: ≤ 200 us
≤ 5W
3–8 s
>10 ms
≤ 2 mV
≤ 50 mV (3.4k–150 kHz)
≤ 20 mV (0.15M–30MHz)
HUAWEI TECHNOLOGIES CO., LTD.
Key Features
•Input voltage range: 85–300 V AC
•
•
•
•
•
•
•
•
•
•
•
Operating temperature range: –40ºC to +75ºC
Total harmonic distortion (THD): ≤ 5％
Digital control mode
Hot swap
Supports intelligent electric meter
Supports CAN communication
Supports LED display
Supports voltage adjustment,current
adjustment,and current sharing
Meet Rohs requirement
Passes the TUV, CE,UL certifications and gets
the CB certificate.
Disconnect above 320 VAC
Regulated voltage
precision
Ripple and noise
Dynamic response
Standby power
Turn-on output delay
Hold up time
Psophometrically
weighted noise
Wideband noise
voltage
1
R4850G2 Rectifier User Manual V1.4
Other Features
Item
Protection
Input overvoltage
protection
Input undervoltage
protection
Output overvoltage
protection
Protection point:>300 VAC
Recovery range:290–300 VAC
Protection point:<80 VAC
Recovery range:80–90 VAC
58.5–60.5 VDC (can be set by
monitoring unit )
the overvoltage occurs inside the
rectifier due to a fault, the rectifier will
latch off.
the output voltage is higher than 63
V and lasts for more than 500 ms, the
rectifier will latch off.
See Figure 1.
Specification
Output Feature
Figure 1 Output feature
Figure 2 Efficiency
(Vin = 230 VAC, Ta:25 ºC / 77 °F)
Output current
limiting protection
Output short circuit
protection
A long term short circuit is allowed.
After the fault is rectified, the rectifier is
restored to a healthy state
automatically.
The module protects against
overtemperature.
Over-temperature
protection
Safety/EMC/Lightening protection
Safety
certification
Passes TUV, CE, UL certifications.
Catch the CB certificate.
Complies with
UL60950-1；IEC60950-1；EN60950-1；
CAN/CSA C22.2 No. 60950 -1 ；
EN55022 Class B ;
EN55024;
EN61000-3-2;
EN61000-3-3;
ETSI EN300 386;
ETSI EN301489;
ITU-T K.20;
5KA
EMC
Figure 3 Power derating curve
3500
3000
2500
P
o
(
w
)
2000
1500
1000
Power Derating Curve
3000
2100
Lightning
Reliability
MTBF > 500,000 hours
500
0
0
-40 50 55
Ta (℃)
65 75 80
Audible Noise
Specification ≤55dB(40 ℃/ 77 °F ,full load)
2
HUAWEI TECHNOLOGIES CO., LTD.
R4850G2 Rectifier User Manual V1.4
Interface Description
The rear panel of the rectifier provides an golden
finger connection which is used as AC input, DC
output and signal connection. For the location of
the pins, see Figure 4. For the definitions of the
pins, see Table 1.
Figure 4 Pins on the rear panel
CAUTION
•Only trained and qualified personnel can be allowed
to install or service the rectifier. To avoid electric
shock or burning, Wear antistatic clothes, antistatic
gloves, and ESD wrist straps before operating the
rectifier.
Each rectifier input is protected by two fuses, one for
the live wire and the other for the neutral wire.
•
Removing the Rectifier
Figure 5 Removing a PSU
Step 1: Push the locking latch left.
Step 2: Remove the PSU out of the PDU by
externally drawing the handle, as shown
in Figure 5.
Installing the Rectifier
Figure 6 Installing a PSU
Step 1: Push the locking latch left and pull out
the handle.
Step 2: Push the PSU slowly into the subrack
along the guide rail and push the locking
latch right to fix the handle, as shown in
Figure 6.
Table 1 Definitions of the pins on the rear panel
Pin
35、36
33、34
31、32
13
14
5、6
1、2
3、4
7-12、
15-30
Transport
The product must be packed with firmly packing box
when transport. Out of the box the mark “prevent
moisture ”,”lay down carefully” and other required
mark must have. Any transport tools are permitted if
the product in the packing box .When transport
must avoid rain and snow attack directly and
mechanical shock.
Definition
L
N
PE
CANL
CANH
OUTPUT+
OUTPUT-
Pre-Charge
Reserved
Function
Live line
Neutral line
Protect earth
CANL
CANH
Output:48V+
Output:48V-
Pre-Charge
Reserved
Storage
Product should be packaged in the packing box
before use .The store room should be meet :-40 ℃
to +70℃ ambient temperature ,related humidity
less than 80%,dry ,ventilation and hasn’t any
corrosive gas.
3
HUAWEI TECHNOLOGIES CO., LTD.
R4850G2 Rectifier User Manual V1.4
Maintenance
DANGER
•
•
The high -voltage power supply energize equipment. Contacting the high-voltage power supply directly or through a dampened
object may cause you to death.
Improper operations on the high-voltage power supply may cause accidents such as fire or electric shock.
Indicator
Power
indicator
Base on following suggestion, Simple fault can be dealt with .
Table 2 Describes the states of LEDs and the causes for abnormal.
Color Status Description
Green
Steady
on
Off
The rectifier is supplied with alternating
current (AC) input power.
The rectifier is not supplied with AC input
power.
The rectifier is faulty.
Blinking
at 0.5 Hz
Blinking
at 4 Hz
The rectifier is being queried.
The rectifier is loading an application
program.
No alarm is generated.
The rectifier generates a prewarning for
power limiting due to overtemperature.
The rectifier generates an alarm for
shutdown due to ambient
overtemperature or undertemperature
protection.
The rectifier generates an alarm due to
AC input overvoltage protection.
The rectifier is hibernated.
Blinking
at 0.5 Hz
The rectifier communication
is interrupted.
The rectifier is not faulty.
The rectifier is locked due to output
overvoltage.
There is no output because the rectifier
is faulty.
Measures
The rectifier runs properly, and no
measure is required.
Replace the rectifier if the AC input is
normal.
Replace the rectifier.
No measure is required.
The rectifier automatically recovers after
loading, and no measure is required.
The rectifier runs properly, and no
measure is required.
Check that the air vent is not blocked and
the ambient temperature is within a
normal range.
Alarm
indicator
Yellow Off
Steady
on
Check that the electrical grid voltage is
within a normal range.
No measure is required.
Replace the rectifier or monitoring
module.
No measure is required.
Pull out the rectifier and reinsert it after 1
minute.
Replace the rectifier.
Fault
indicator
Red
Off
Steady
on
Suggestions
1. Rectify the faults by referring to Table 2.
2. If you cannot rectify the fault according to Table 2, replace the rectifier.
3. Return the faulty rectifier to Huawei for repairing.
Huawei Technologies Co., Ltd.
Huawei Industrial Base
Bantian, Longgang, Shenzhen
518129
4
HUAWEI TECHNOLOGIES CO., LTD.
2024年5月8日发(作者：公良文)
R4850G2 Rectifier User Manual V1.4
Environmental Specifications
Item
Operating
temperature
Storage
temperature
Relative humidity
Efficiency
Height x Width x Depth
Weight
Cooling
The peak point is ≥96%;
≥95%(230V AC,30%–100% load)
40.8 mm x 105 mm x 281 mm
(1.61 in. x 4.13 in. x 11.06 in.)
≤2kg
Built-in fan(The rotation of fan
depends on the internal
temperature.)
Specification
-40ºC to +75 ºC(referring
to Figure 3)
(–40°F to +167°F)
-40ºC to +75ºC(not
packaged)
(–40°F to +167°F)
5%-95% (non-condensing)
Altitude range ≤ 4000 m
Note: If the altitude is within the range of 3000 m to 4000 m, the maximum operating
temperature decreases by 1 °C (1.8°F ) as the altitude increases by 200 m.
Electrical Specifications
Item
Input
Operating voltage
Frequency
Rated input current
Power factor
85–300 VAC
45–66 Hz
Rated : 50Hz and 60 Hz
<17A
≥ 0.99(load≥50%
)
Specification
Description
The R4850G2 is a digital rectifier with high efficiency and
power converts 85–300 V AC input voltage to
53.5 V DC output voltage. The output voltage can be
adjusted by the host.
It performs comprehensive protection functions, supports
soft start, and produces low noise. With the latest power
monitoring technology, states of the rectifier and load are
monitored in real time.
Multiple rectifiers can be paralleled.
THD
Output
≤ 5％(load≥50% )
Output voltage
Output power
42–58 VDC
Rated voltage: 53.5 VDC
3000 W (176–290 VAC);
1250 W (85–175 VACdecreased
linearly)
≤±0.6%Vo
≤ 200 mVp-p
(Bandwidth≤20MHz)
Over shoot:≤ ±5% Vo
Recovery time: ≤ 200 us
≤ 5W
3–8 s
>10 ms
≤ 2 mV
≤ 50 mV (3.4k–150 kHz)
≤ 20 mV (0.15M–30MHz)
HUAWEI TECHNOLOGIES CO., LTD.
Key Features
•Input voltage range: 85–300 V AC
•
•
•
•
•
•
•
•
•
•
•
Operating temperature range: –40ºC to +75ºC
Total harmonic distortion (THD): ≤ 5％
Digital control mode
Hot swap
Supports intelligent electric meter
Supports CAN communication
Supports LED display
Supports voltage adjustment,current
adjustment,and current sharing
Meet Rohs requirement
Passes the TUV, CE,UL certifications and gets
the CB certificate.
Disconnect above 320 VAC
Regulated voltage
precision
Ripple and noise
Dynamic response
Standby power
Turn-on output delay
Hold up time
Psophometrically
weighted noise
Wideband noise
voltage
1
R4850G2 Rectifier User Manual V1.4
Other Features
Item
Protection
Input overvoltage
protection
Input undervoltage
protection
Output overvoltage
protection
Protection point:>300 VAC
Recovery range:290–300 VAC
Protection point:<80 VAC
Recovery range:80–90 VAC
58.5–60.5 VDC (can be set by
monitoring unit )
the overvoltage occurs inside the
rectifier due to a fault, the rectifier will
latch off.
the output voltage is higher than 63
V and lasts for more than 500 ms, the
rectifier will latch off.
See Figure 1.
Specification
Output Feature
Figure 1 Output feature
Figure 2 Efficiency
(Vin = 230 VAC, Ta:25 ºC / 77 °F)
Output current
limiting protection
Output short circuit
protection
A long term short circuit is allowed.
After the fault is rectified, the rectifier is
restored to a healthy state
automatically.
The module protects against
overtemperature.
Over-temperature
protection
Safety/EMC/Lightening protection
Safety
certification
Passes TUV, CE, UL certifications.
Catch the CB certificate.
Complies with
UL60950-1；IEC60950-1；EN60950-1；
CAN/CSA C22.2 No. 60950 -1 ；
EN55022 Class B ;
EN55024;
EN61000-3-2;
EN61000-3-3;
ETSI EN300 386;
ETSI EN301489;
ITU-T K.20;
5KA
EMC
Figure 3 Power derating curve
3500
3000
2500
P
o
(
w
)
2000
1500
1000
Power Derating Curve
3000
2100
Lightning
Reliability
MTBF > 500,000 hours
500
0
0
-40 50 55
Ta (℃)
65 75 80
Audible Noise
Specification ≤55dB(40 ℃/ 77 °F ,full load)
2
HUAWEI TECHNOLOGIES CO., LTD.
R4850G2 Rectifier User Manual V1.4
Interface Description
The rear panel of the rectifier provides an golden
finger connection which is used as AC input, DC
output and signal connection. For the location of
the pins, see Figure 4. For the definitions of the
pins, see Table 1.
Figure 4 Pins on the rear panel
CAUTION
•Only trained and qualified personnel can be allowed
to install or service the rectifier. To avoid electric
shock or burning, Wear antistatic clothes, antistatic
gloves, and ESD wrist straps before operating the
rectifier.
Each rectifier input is protected by two fuses, one for
the live wire and the other for the neutral wire.
•
Removing the Rectifier
Figure 5 Removing a PSU
Step 1: Push the locking latch left.
Step 2: Remove the PSU out of the PDU by
externally drawing the handle, as shown
in Figure 5.
Installing the Rectifier
Figure 6 Installing a PSU
Step 1: Push the locking latch left and pull out
the handle.
Step 2: Push the PSU slowly into the subrack
along the guide rail and push the locking
latch right to fix the handle, as shown in
Figure 6.
Table 1 Definitions of the pins on the rear panel
Pin
35、36
33、34
31、32
13
14
5、6
1、2
3、4
7-12、
15-30
Transport
The product must be packed with firmly packing box
when transport. Out of the box the mark “prevent
moisture ”,”lay down carefully” and other required
mark must have. Any transport tools are permitted if
the product in the packing box .When transport
must avoid rain and snow attack directly and
mechanical shock.
Definition
L
N
PE
CANL
CANH
OUTPUT+
OUTPUT-
Pre-Charge
Reserved
Function
Live line
Neutral line
Protect earth
CANL
CANH
Output:48V+
Output:48V-
Pre-Charge
Reserved
Storage
Product should be packaged in the packing box
before use .The store room should be meet :-40 ℃
to +70℃ ambient temperature ,related humidity
less than 80%,dry ,ventilation and hasn’t any
corrosive gas.
3
HUAWEI TECHNOLOGIES CO., LTD.
R4850G2 Rectifier User Manual V1.4
Maintenance
DANGER
•
•
The high -voltage power supply energize equipment. Contacting the high-voltage power supply directly or through a dampened
object may cause you to death.
Improper operations on the high-voltage power supply may cause accidents such as fire or electric shock.
Indicator
Power
indicator
Base on following suggestion, Simple fault can be dealt with .
Table 2 Describes the states of LEDs and the causes for abnormal.
Color Status Description
Green
Steady
on
Off
The rectifier is supplied with alternating
current (AC) input power.
The rectifier is not supplied with AC input
power.
The rectifier is faulty.
Blinking
at 0.5 Hz
Blinking
at 4 Hz
The rectifier is being queried.
The rectifier is loading an application
program.
No alarm is generated.
The rectifier generates a prewarning for
power limiting due to overtemperature.
The rectifier generates an alarm for
shutdown due to ambient
overtemperature or undertemperature
protection.
The rectifier generates an alarm due to
AC input overvoltage protection.
The rectifier is hibernated.
Blinking
at 0.5 Hz
The rectifier communication
is interrupted.
The rectifier is not faulty.
The rectifier is locked due to output
overvoltage.
There is no output because the rectifier
is faulty.
Measures
The rectifier runs properly, and no
measure is required.
Replace the rectifier if the AC input is
normal.
Replace the rectifier.
No measure is required.
The rectifier automatically recovers after
loading, and no measure is required.
The rectifier runs properly, and no
measure is required.
Check that the air vent is not blocked and
the ambient temperature is within a
normal range.
Alarm
indicator
Yellow Off
Steady
on
Check that the electrical grid voltage is
within a normal range.
No measure is required.
Replace the rectifier or monitoring
module.
No measure is required.
Pull out the rectifier and reinsert it after 1
minute.
Replace the rectifier.
Fault
indicator
Red
Off
Steady
on
Suggestions
1. Rectify the faults by referring to Table 2.
2. If you cannot rectify the fault according to Table 2, replace the rectifier.
3. Return the faulty rectifier to Huawei for repairing.
Huawei Technologies Co., Ltd.
Huawei Industrial Base
Bantian, Longgang, Shenzhen
518129
4
HUAWEI TECHNOLOGIES CO., LTD.