2024年5月8日发(作者：镜良骏)
资料版本 V1.0 归档时间 2011-07-29 BOM编号 31012511
ER4850/S整流模块用户手册
1 简介
1.1 型号说明
ER4850/S整流模块（以下简称整流模块）型号说明如图1所示。
ER4850
/
S
单相交流输入
标称输出电流（50A）
标称输出电压（48V）
艾默生整流模块
图1 型号说明
1.2 外观
整流模块的外观如图2所示。
图2 整流模块外观图
1.3 前面板
整流模块的前面板有1个三角按键和3个指示灯，如图3所示。
三角按键
故障指示灯
保护指示灯
电源指示灯
图3 整流模块前面板图
三角按键的作用：
整流模块需要通过把手固定在机柜上。三角按键按下去时，把手的卡扣
装置会将整流模块固定在机柜上；三角按键再按下去时，把手弹出，整
流模块和机柜解锁，即可拉出整流模块。
指示灯的功能见下表1。
表1 指示灯说明
丝印
颜色 名称 状态 含义
绿色
电源
亮
有输入电源
指示灯
灭
无输入电源，整流模块内部辅助电
源不工作
交流输入过
/
欠压；
整流模块内部
PFC
母线过压保护；
黄色
保护
亮
整流模块过温；
指示灯
整流模块不均流
灭
无告警或保护发生
闪烁
整流模块与主监控模块通讯中断
亮
输出过压；
红色
故障
整流模块严重不均流
*
指示灯
灭
无故障发生
闪烁
风扇故障
注
*
：整流模块在系统上的负载电流小于
1A
，且整流模块的平均负载
电流大于等于
10A
时，判断为发生严重不均流故障
1.4 后面板
整流模块的后面板有交流输入插座和直流输出插座，如图4所示。
1
32
直流输出
654
插座
987
0
1
直流输出插座
交流输入
1
插座
2
3
交流输入插座
图4 整流模块后面板图
整流模块的交流输入、直流输出插座采用热插拔技术，安装维护极为方
便。交流输入插座、直流输出插座管脚功能详细说明分别见表2和表3。
表2 交流输入插座管脚功能
管脚号 管脚功能
1
接保护地
2
接交流输入
L
端
3 接交流输入
N
端
表3 直流输出插座管脚功能
管脚号 管脚功能 管脚号 管脚功能
1
输出负
10
输出正
6
CAN
－
9
CAN
＋
2 主要功能
保护功能
整流模块具有以下保护功能：输入过/欠压保护、输出过压保护、风扇故
障保护、短路保护、过温保护。
故障显示
整流模块告警信息通过前面板上的3个指示灯状态（灭、亮、闪烁）进
行指示，具体故障信息及处理请参考表4。
1
风扇速度控制
风扇具有无级调速功能，通过对输出电流和整流模块环境温度综合考虑
进行风扇调速控制。
通信功能
整流模块通过CAN方式与主监控单元通信，将整流模块输出电压和电
流、整流模块保护和告警信息发送给主监控单元。具体通信功能包括遥
信、遥测、遥控和遥调。
3 安装及使用
整流模块安装
图5为整流模块安装尺寸，将整流模块安装到机柜里，确保输入输出插
座与机柜已经可靠连接，将三角按键按上，确保整流模块与机柜紧密固
定在一起。卡扣与机柜或插框的配合关系见图6。
整流模块散热
整流模块采用智能风冷冷却方式，风扇安装于整流模块前部，从整流模
块前方抽风吹向整流模块后方。因此在安排整流模块位置时，应保证整
流模块进出风口的畅通。
整流模块热插拔
整流模块具备热插拔功能，禁止在易燃环境中对整流模块进行热插拔！
85.3
14
4
.
5
5
.
3
9
8
.
2
2
3
1
9
.
5
3.4
18
11.5
5
6
.
0
4
8
5
6
.
0
273
图5 安装尺寸（单位：mm）
12
1
75
2
8
7
.
.
5
3
8
.
3
1
61
12.18
42.68
85.36
图6 整流模块插框底座图示（三角按键卡扣设计参考）（单位：mm）
4 故障处理
整流模块常见故障及处理见表4。
表4 常见故障及处理措施
故障现象 故障原因 处理
电源指示灯
输入交流断电
检查输入是否正常
（绿色）灭
整流模块内部故
障
返回维修
交流输入过
/
欠压
检查交流输入电压是否正常
内部
PFC
母线过
压保护
返回维修
检查整流模块通信是否正常；
保护指示灯
整流模块不均流
检查并联整流模块的输出电压设置
（黄色）亮
是否一致
检查环境温度是否过高；
检查系统热设计是否合理；
整流模块过温
检查整流模块进出口是否受堵；
排除以上项目后仍然过温，返回维
修
检查通信线是否损坏以及接好；
保护指示灯
整流模块与监控
检查
CAN
线正负极是否反接；
（黄色）闪烁
单元通讯中断
检查系统
CAN
母线最远端整流模
块
CAN
＋
/
－极之间是否接了
120ohm
匹配电阻
输出过压保护
断开交流电，重新上电，若仍然发
故障指示灯
生过压保护，返回维修
（红色）亮
整流模块严重不
检查整流模块通信是否正常；
均流
检查并联整流模块的输出电压设置
是否一致
故障指示灯
风扇故障
检查风扇是否堵转。如果堵转，将
（红色）闪烁
阻碍物移除
艾默生网络能源有限公司
地址：深圳市南山区科技工业园科发路一号
邮编：518057
公司网址：
客户服务热线：4008876510
E-mail：**************************.cn
资料版本 V1.0
归档时间 2011-07-29
BOM编号 31012511
版权所有，保留一切权利。内容如有改动，恕不另行通知。
2
ER4850/S Rectifier User Manual
1 Brief Introduction
1.1 Model Description
The model of ER4850/S rectifier (rectifier for short) is described in
Figure 1.
ER4850
/
S
Single phase AC input
Nominal output current (50A)
Nominal output voltage (48V)
Emerson rectifier
Figure 1 Model description
1.2 Appearance
The appearance of the rectifier is shown in Figure 2.
Figure 2 Rectifier appearance
1.3 Front Panel
The rectifier provides one triangle button and three indicators on the
front panel, as shown in Figure 3.
Triangle button
Fault indicator
Protection indicator
Power indicator
Figure 3 Front panel of rectifier
Function of the triangle button:
The rectifier is fixed in the cabinet through a handle. Pressing the
triangle button, and the snap of the handle locks the rectifier into the
cabinet; pressing the triangle button again, and the handle pops out to
unlock the rectifier from the cabinet, then the rectifier can be pulled out.
The functions of the indicators are described in Table 1.
Table 1 Description of indicator functions
silkprint color Name Status Meaning
On
With input power
Green
Power
No input power.
indicator
Off
The auxiliary power in the
rectifier does not work
silkprint color Name Status Meaning
AC input overvoltage or
undervoltage; PFC bus in the
On
rectifier overvoltage protection;
Yellow
Protection
rectifier overtemperature;
indicator
rectifier load sharing imbalance
Off
No alarm or protection
Interruption of communication
Blinking
between the rectifier and the
main controller
On
Output overvoltage; serious load
Red
Fault
sharing imbalance*
indicator
Off
No fault
Blinking
Fan fault
Note*: That the load current of a rectifier is lower than 1A while the
average load current of the rectifier is higher than 10A is deemed
serious load sharing imbalance
1.4 Back Panel
The rectifier provides an AC input socket and a DC output socket on the
back panel, as shown in Figure 4.
1
32
DC output
654
socket
987
0
1
DC output socket
AC input
1
socket
2
3
AC input socket
Figure 4 Back panel of rectifier
The AC input and DC output sockets use hot-pluggable technology to
facilitate installation and service. The pin functions of the AC input and
DC output sockets are described respectively in Table 2 and Table 3.
Table 2 Pin functions of AC input socket
Pin No. Pin function
1 Connect to PE terminal
2 Connect to AC input L terminal
3 Connect to AC input N terminal
Table 3 Pin functions of DC output socket
Pin No. Pin function Pin No. Pin function
1 Output - 10 Output +
6 CAN - 9 CAN +
2 Functions
Protection
The rectifier provides the following protection functions: input
overvoltage and undervoltage protection, output overvoltage protection,
fan fault protection, short circuit protection and overtemperature
protection.
Fault display
The rectifier faults are indicated by the states (on, off and blinking) of the
indicators on the front panel. For the fault information and treatments,
refer to Table 4.
Fan speed control
The fan has stepless speed regulation control. The fan speed is
1
regulated and controlled according to the output current and the ambient
temperature of the rectifier.
Communication
The rectifier communicates with the main controller in CAN mode. It
sends its output voltage, current, protection and alarm information to the
main controller. The detailed communication functions include remote
acquisition of alarm, digital and analog signals, remote control and
remote adjustment of voltage analog signal.
3 Installation And Use
Installation
Figure 5 shows the installation dimensions of the rectifier. Install the
rectifier into the cabinet, and ensure that the input and output sockets
have been connected to the cabinet reliably. Press the triangle button to
ensure that the rectifier and the cabinet are fixed together. The
relationship of the snap and the cabinet or subrack is shown in Figure 6.
Heat dissipation
The rectifier uses intelligent air-cooled mode. The fan is installed in front
of the rectifier and blows the air from front to back. Therefore, Make sure
that the air intake and air outlet of the rectifier are not obstructed during
arranging the rectifier position.
Hot-plug
The rectifier provides hot-pluggable function. It is prohibited to plug and
unplug the rectifier with power-on in flammable environment!
85.3
14
4
5
5
.
.
3
9
8
2
2
.
3
1
9
5
.
3.4
11.5
18
5
6
0
.
5
8
4
6
0
.
273
Figure 5 Installation dimensions (unit: mm)
12
1
75
2
8
7
.
8
.
5
3
3
.
1
61
12.18
42.68
85.36
Figure 6 Subrack base of rectifier (design reference of triangle button
snap) (unit: mm)
4 Troubleshooting
The troubleshooting of the rectifier is listed in Table 4.
Table 4 Troubleshooting
Fault
phenomena
Fault cause Treatment
Power
No AC input Verify the input
indicator
(green) off
Internal rectifier fault
Return the rectifier to Emerson for
repair
AC input
overvoltage or Verify the AC input voltage
undervoltage
Internal PFC bus Return the rectifier to Emerson for
overvoltage repair
Verify the rectifier communication;
Load sharing Check that the output voltage
Protection
imbalance settings of the parallel rectifiers are
indicator
consistent
(yellow) on
Check if the ambient temperature is
too high;
Check if the system thermal design
Rectifier
is reasonable;
overtemperature
Check if the air inlet and outlet of
the rectifier are obstructed.
If all the preceding checks are
proved satisfying, return the rectifier
to Emerson for repair
Check that the communication
cable is not damaged and is
Protection
properly connected;
indicator Communication
Check that the CAN cables are not
(yellow) interrupt
reversely connected;
blinking
Check that a 120Ω matching
resistor is connected between the
CAN+ and CAN- terminals of the
farthest rectifier on the CAN bus
Cut off the AC power and then
Output overvoltage restart the rectifier. If the fault
Fault
protection persists, return the rectifier to
indicator
Emerson for repair
(red) on
Verify the rectifier communication;
Serious load Check that the output voltage
sharing imbalance settings of the parallel rectifiers are
consistent
Fault
indicator Fan fault
Check if the fan is obstructed. if
(red) blinking
yes, remove the obstruction
Emerson Network Power Co., Ltd.
Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District
518057, Shenzhen China
Homepage:
E-mail:**************************.cn
Copyright © 2011 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change
without notice.
Version V1.0
Revision date July 29, 2011
BOM 31012511
2
2024年5月8日发(作者：镜良骏)
资料版本 V1.0 归档时间 2011-07-29 BOM编号 31012511
ER4850/S整流模块用户手册
1 简介
1.1 型号说明
ER4850/S整流模块（以下简称整流模块）型号说明如图1所示。
ER4850
/
S
单相交流输入
标称输出电流（50A）
标称输出电压（48V）
艾默生整流模块
图1 型号说明
1.2 外观
整流模块的外观如图2所示。
图2 整流模块外观图
1.3 前面板
整流模块的前面板有1个三角按键和3个指示灯，如图3所示。
三角按键
故障指示灯
保护指示灯
电源指示灯
图3 整流模块前面板图
三角按键的作用：
整流模块需要通过把手固定在机柜上。三角按键按下去时，把手的卡扣
装置会将整流模块固定在机柜上；三角按键再按下去时，把手弹出，整
流模块和机柜解锁，即可拉出整流模块。
指示灯的功能见下表1。
表1 指示灯说明
丝印
颜色 名称 状态 含义
绿色
电源
亮
有输入电源
指示灯
灭
无输入电源，整流模块内部辅助电
源不工作
交流输入过
/
欠压；
整流模块内部
PFC
母线过压保护；
黄色
保护
亮
整流模块过温；
指示灯
整流模块不均流
灭
无告警或保护发生
闪烁
整流模块与主监控模块通讯中断
亮
输出过压；
红色
故障
整流模块严重不均流
*
指示灯
灭
无故障发生
闪烁
风扇故障
注
*
：整流模块在系统上的负载电流小于
1A
，且整流模块的平均负载
电流大于等于
10A
时，判断为发生严重不均流故障
1.4 后面板
整流模块的后面板有交流输入插座和直流输出插座，如图4所示。
1
32
直流输出
654
插座
987
0
1
直流输出插座
交流输入
1
插座
2
3
交流输入插座
图4 整流模块后面板图
整流模块的交流输入、直流输出插座采用热插拔技术，安装维护极为方
便。交流输入插座、直流输出插座管脚功能详细说明分别见表2和表3。
表2 交流输入插座管脚功能
管脚号 管脚功能
1
接保护地
2
接交流输入
L
端
3 接交流输入
N
端
表3 直流输出插座管脚功能
管脚号 管脚功能 管脚号 管脚功能
1
输出负
10
输出正
6
CAN
－
9
CAN
＋
2 主要功能
保护功能
整流模块具有以下保护功能：输入过/欠压保护、输出过压保护、风扇故
障保护、短路保护、过温保护。
故障显示
整流模块告警信息通过前面板上的3个指示灯状态（灭、亮、闪烁）进
行指示，具体故障信息及处理请参考表4。
1
风扇速度控制
风扇具有无级调速功能，通过对输出电流和整流模块环境温度综合考虑
进行风扇调速控制。
通信功能
整流模块通过CAN方式与主监控单元通信，将整流模块输出电压和电
流、整流模块保护和告警信息发送给主监控单元。具体通信功能包括遥
信、遥测、遥控和遥调。
3 安装及使用
整流模块安装
图5为整流模块安装尺寸，将整流模块安装到机柜里，确保输入输出插
座与机柜已经可靠连接，将三角按键按上，确保整流模块与机柜紧密固
定在一起。卡扣与机柜或插框的配合关系见图6。
整流模块散热
整流模块采用智能风冷冷却方式，风扇安装于整流模块前部，从整流模
块前方抽风吹向整流模块后方。因此在安排整流模块位置时，应保证整
流模块进出风口的畅通。
整流模块热插拔
整流模块具备热插拔功能，禁止在易燃环境中对整流模块进行热插拔！
85.3
14
4
.
5
5
.
3
9
8
.
2
2
3
1
9
.
5
3.4
18
11.5
5
6
.
0
4
8
5
6
.
0
273
图5 安装尺寸（单位：mm）
12
1
75
2
8
7
.
.
5
3
8
.
3
1
61
12.18
42.68
85.36
图6 整流模块插框底座图示（三角按键卡扣设计参考）（单位：mm）
4 故障处理
整流模块常见故障及处理见表4。
表4 常见故障及处理措施
故障现象 故障原因 处理
电源指示灯
输入交流断电
检查输入是否正常
（绿色）灭
整流模块内部故
障
返回维修
交流输入过
/
欠压
检查交流输入电压是否正常
内部
PFC
母线过
压保护
返回维修
检查整流模块通信是否正常；
保护指示灯
整流模块不均流
检查并联整流模块的输出电压设置
（黄色）亮
是否一致
检查环境温度是否过高；
检查系统热设计是否合理；
整流模块过温
检查整流模块进出口是否受堵；
排除以上项目后仍然过温，返回维
修
检查通信线是否损坏以及接好；
保护指示灯
整流模块与监控
检查
CAN
线正负极是否反接；
（黄色）闪烁
单元通讯中断
检查系统
CAN
母线最远端整流模
块
CAN
＋
/
－极之间是否接了
120ohm
匹配电阻
输出过压保护
断开交流电，重新上电，若仍然发
故障指示灯
生过压保护，返回维修
（红色）亮
整流模块严重不
检查整流模块通信是否正常；
均流
检查并联整流模块的输出电压设置
是否一致
故障指示灯
风扇故障
检查风扇是否堵转。如果堵转，将
（红色）闪烁
阻碍物移除
艾默生网络能源有限公司
地址：深圳市南山区科技工业园科发路一号
邮编：518057
公司网址：
客户服务热线：4008876510
E-mail：**************************.cn
资料版本 V1.0
归档时间 2011-07-29
BOM编号 31012511
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ER4850/S Rectifier User Manual
1 Brief Introduction
1.1 Model Description
The model of ER4850/S rectifier (rectifier for short) is described in
Figure 1.
ER4850
/
S
Single phase AC input
Nominal output current (50A)
Nominal output voltage (48V)
Emerson rectifier
Figure 1 Model description
1.2 Appearance
The appearance of the rectifier is shown in Figure 2.
Figure 2 Rectifier appearance
1.3 Front Panel
The rectifier provides one triangle button and three indicators on the
front panel, as shown in Figure 3.
Triangle button
Fault indicator
Protection indicator
Power indicator
Figure 3 Front panel of rectifier
Function of the triangle button:
The rectifier is fixed in the cabinet through a handle. Pressing the
triangle button, and the snap of the handle locks the rectifier into the
cabinet; pressing the triangle button again, and the handle pops out to
unlock the rectifier from the cabinet, then the rectifier can be pulled out.
The functions of the indicators are described in Table 1.
Table 1 Description of indicator functions
silkprint color Name Status Meaning
On
With input power
Green
Power
No input power.
indicator
Off
The auxiliary power in the
rectifier does not work
silkprint color Name Status Meaning
AC input overvoltage or
undervoltage; PFC bus in the
On
rectifier overvoltage protection;
Yellow
Protection
rectifier overtemperature;
indicator
rectifier load sharing imbalance
Off
No alarm or protection
Interruption of communication
Blinking
between the rectifier and the
main controller
On
Output overvoltage; serious load
Red
Fault
sharing imbalance*
indicator
Off
No fault
Blinking
Fan fault
Note*: That the load current of a rectifier is lower than 1A while the
average load current of the rectifier is higher than 10A is deemed
serious load sharing imbalance
1.4 Back Panel
The rectifier provides an AC input socket and a DC output socket on the
back panel, as shown in Figure 4.
1
32
DC output
654
socket
987
0
1
DC output socket
AC input
1
socket
2
3
AC input socket
Figure 4 Back panel of rectifier
The AC input and DC output sockets use hot-pluggable technology to
facilitate installation and service. The pin functions of the AC input and
DC output sockets are described respectively in Table 2 and Table 3.
Table 2 Pin functions of AC input socket
Pin No. Pin function
1 Connect to PE terminal
2 Connect to AC input L terminal
3 Connect to AC input N terminal
Table 3 Pin functions of DC output socket
Pin No. Pin function Pin No. Pin function
1 Output - 10 Output +
6 CAN - 9 CAN +
2 Functions
Protection
The rectifier provides the following protection functions: input
overvoltage and undervoltage protection, output overvoltage protection,
fan fault protection, short circuit protection and overtemperature
protection.
Fault display
The rectifier faults are indicated by the states (on, off and blinking) of the
indicators on the front panel. For the fault information and treatments,
refer to Table 4.
Fan speed control
The fan has stepless speed regulation control. The fan speed is
1
regulated and controlled according to the output current and the ambient
temperature of the rectifier.
Communication
The rectifier communicates with the main controller in CAN mode. It
sends its output voltage, current, protection and alarm information to the
main controller. The detailed communication functions include remote
acquisition of alarm, digital and analog signals, remote control and
remote adjustment of voltage analog signal.
3 Installation And Use
Installation
Figure 5 shows the installation dimensions of the rectifier. Install the
rectifier into the cabinet, and ensure that the input and output sockets
have been connected to the cabinet reliably. Press the triangle button to
ensure that the rectifier and the cabinet are fixed together. The
relationship of the snap and the cabinet or subrack is shown in Figure 6.
Heat dissipation
The rectifier uses intelligent air-cooled mode. The fan is installed in front
of the rectifier and blows the air from front to back. Therefore, Make sure
that the air intake and air outlet of the rectifier are not obstructed during
arranging the rectifier position.
Hot-plug
The rectifier provides hot-pluggable function. It is prohibited to plug and
unplug the rectifier with power-on in flammable environment!
85.3
14
4
5
5
.
.
3
9
8
2
2
.
3
1
9
5
.
3.4
11.5
18
5
6
0
.
5
8
4
6
0
.
273
Figure 5 Installation dimensions (unit: mm)
12
1
75
2
8
7
.
8
.
5
3
3
.
1
61
12.18
42.68
85.36
Figure 6 Subrack base of rectifier (design reference of triangle button
snap) (unit: mm)
4 Troubleshooting
The troubleshooting of the rectifier is listed in Table 4.
Table 4 Troubleshooting
Fault
phenomena
Fault cause Treatment
Power
No AC input Verify the input
indicator
(green) off
Internal rectifier fault
Return the rectifier to Emerson for
repair
AC input
overvoltage or Verify the AC input voltage
undervoltage
Internal PFC bus Return the rectifier to Emerson for
overvoltage repair
Verify the rectifier communication;
Load sharing Check that the output voltage
Protection
imbalance settings of the parallel rectifiers are
indicator
consistent
(yellow) on
Check if the ambient temperature is
too high;
Check if the system thermal design
Rectifier
is reasonable;
overtemperature
Check if the air inlet and outlet of
the rectifier are obstructed.
If all the preceding checks are
proved satisfying, return the rectifier
to Emerson for repair
Check that the communication
cable is not damaged and is
Protection
properly connected;
indicator Communication
Check that the CAN cables are not
(yellow) interrupt
reversely connected;
blinking
Check that a 120Ω matching
resistor is connected between the
CAN+ and CAN- terminals of the
farthest rectifier on the CAN bus
Cut off the AC power and then
Output overvoltage restart the rectifier. If the fault
Fault
protection persists, return the rectifier to
indicator
Emerson for repair
(red) on
Verify the rectifier communication;
Serious load Check that the output voltage
sharing imbalance settings of the parallel rectifiers are
consistent
Fault
indicator Fan fault
Check if the fan is obstructed. if
(red) blinking
yes, remove the obstruction
Emerson Network Power Co., Ltd.
Address: No.1 Kefa Rd., Science & Industry Park, Nanshan District
518057, Shenzhen China
Homepage:
E-mail:**************************.cn
Copyright © 2011 by Emerson Network Power Co., Ltd.
All rights reserved. The contents in this document are subject to change
without notice.
Version V1.0
Revision date July 29, 2011
BOM 31012511
2