



9200-01-05-10-00
在以下情况下,感应负载(继电器、接触器和电机)会导致电压瞬变:
关闭。电压瞬变可通过电容或电感连接到其他设备
并导致系统故障。
使用噪声衰减电路(变阻器、RC滤波器[AC]或二极管[DC])将噪声降至低
关闭时感应负载的EMC发射。安装噪声衰减电路
尽可能靠近感应负载。请勿在以下位置安装噪音衰减电路:
继电器输出。
1继电器输出
2压敏电阻
3 RC滤波器
4二极管
1.
2.
3.
230伏交流电
+24伏直流电
4.
230伏交流电
电气装置57
6.
电气装置
本章内容
本章介绍了如何检查装置和设备的绝缘
与IT(不接地)和角接地TN系统的兼容性。它展示了如何
连接电源和控制电缆,安装可选模块并连接电脑。
警告
警告!遵守13页安全说明中的说明。如果:
忽略它们,可能会造成人员伤亡或设备损坏。
警告!确保驱动器与输入电源断开
在安装期间。在对驱动器进行操作之前,请等待5分钟
断开输入电源。
所需工具
要执行电气安装,您需要以下工具:
•剥线器
•带有一套合适钻头的螺丝刀或扳手
•万用表和电压检测器
•个人防护设备
58.电气安装
测量绝缘
驾驶
请勿对驱动器进行电压公差或绝缘电阻测试。驱动器是
在工厂测试主电路和底盘之间的绝缘。驱动器
具有自动降低测试电压的限压电路。
输入电源电缆
在连接输入电源电缆之前,请根据
地方法规。
电机和电机电缆
测量电机和电机电缆的绝缘,如下所示:
1.确保电机电缆与驱动输出端子断开
T1/U、T2/V和T3/W。
2.测量绝缘电阻
在相导体之间
在每个相导体和电容器之间
保护接地导体。使用
测量电压为1000伏直流电。这个
ABB电机的绝缘电阻
必须大于100 Mohm(参考
25°C或77°F下的值)。对于
其他电机的绝缘电阻,
请参阅制造商的说明。
电机外壳中的水分会降低绝缘电阻。如果你这么想的话
电机中有水分,干燥电机并再次测量。
制动电阻总成
测量制动电阻器总成的绝缘,如下所示:
1.确保电阻器电缆连接正确
连接到电阻器并断开连接
从驱动输出端子R+和R-。
2.在驱动器上,将电阻电缆的R+和R导体连接在一起。
测量之间的绝缘电阻
组合导体和PE
测量电压为
1千伏直流电。绝缘电阻必须为:
大于1mohm。
欧姆
M
3~
U1
V1
W1聚乙烯
欧姆
RR+
体育课
电气装置59
与IT兼容(不接地)和角接地
TN系统
滤波器
警告!请勿在IT系统(an)中使用驱动器的内部EMC过滤器
电源系统未接地或高电阻接地[超过30欧姆]
电力系统)。如果使用内部EMC筛选器,则系统将连接到
通过EMC滤波电容器的接地电位。这可能会造成危险或损坏
到驱动器。
警告!请勿在角落使用驱动器的内部EMC滤波器
TN系统。如果使用内部EMC滤波器,则可能会损坏电源
驾驶
断开内部EMC过滤器时,驱动器的EMC兼容性会降低
减少。参见93页的电机电缆长度。
EMC滤波器断开
这仅适用于具有以下特性的产品变体:
内部EMC滤波器。
请参阅28页的硬件概述。
要断开EMC滤波器的连接,请卸下EMC滤波器
过滤器接地螺钉。
地-相变阻器
变阻器保护驱动器免受电源线电压峰值的影响。
警告!如果将驱动器连接到IT系统(不接地电源
系统或高电阻接地[超过30欧姆]的电力系统),
从接地上断开变阻器。如果不这样做,可能会损坏发动机
变阻器电路。
要断开变阻器电路与接地的连接,请拆下变阻器接地螺钉。
请参阅页上的硬件概述
9200-01-05-10-00

9200-01-05-10-00
Inductive loads (relays, contactors and motors) cause voltage transients when
switched off. The voltage transients can connect capacitively or inductively to other
conductors and cause a malfunction in the system.
Use a noise attenuating circuit (varistors, RC filters [AC] or diodes [DC]) to minimize
the EMC emission of inductive loads at switch-off. Install the noise attenuating circuit
as close to the inductive load as possible. Do not install a noise attenuating circuit at
the relay output.
1 Relay output
2 Varistor
3 RC filter
4 Diode
1
2
3
230 V AC
+ 24 V DC
4
230 V AC
Electrical installation 57
6
Electrical installation
Contents of this chapter
The chapter describes how to check the insulation of the installation and the
compatibility with IT (ungrounded) and corner-grounded TN systems. It shows how to
connect the power and control cables, install optional modules and connect a PC.
Warnings
WARNING! Obey the instructions in Safety instructions on page 13. If you
ignore them, injury or death, or damage to the equipment can occur.
WARNING! Make sure that the drive is disconnected from the input power
during installation. Before you do work on the drive, wait for 5 minutes after you
disconnect the input power.
Required tools
To perform the electrical installation, you need the following tools:
• Wire stripper
• Screwdriver or wrench with a set of suitable bits
• Multimeter and voltage detector
• Personal protective equipment
58 Electrical installation
Measuring insulation
Drive
Do not do voltage tolerance or insulation resistance tests on the drive. The drive was
tested for insulation between the main circuit and the chassis at the factory. The drive
has voltage-limiting circuits which decrease the testing voltage automatically.
Input power cable
Before you connect the input power cable, measure its insulation according to the
local regulations.
Motor and motor cable
Measure the insulation of the motor and motor cable as follows:
1. Make sure that the motor cable is disconnected from the drive output terminals
T1/U, T2/V and T3/W.
2. Measure the insulation resistance
between the phase conductors and
between each phase conductor and the
protective earth conductor. Use a
measuring voltage of 1,000 V DC. The
insulation resistance of an ABB motor
must be more than 100 Mohm (reference
value at 25 °C or 77 °F). For the
insulation resistance of other motors,
refer to the manufacturer’s instructions.
Moisture in the motor casing decreases the insulation resistance. If you think that
there is moisture in the motor, dry the motor and measure again.
Brake resistor assembly
Measure the insulation of the brake resistor assembly as follows:
1. Make sure that the resistor cable is
connected to the resistor, and disconnected
from the drive output terminals R+ and R-.
2. At the drive, connect the R+ and Rconductors of the resistor cable together.
Measure the insulation resistance between
the combined conductors and the PE
conductor with a measuring voltage of
1 kV DC. The insulation resistance must be
more than 1 Mohm.
ohm
M
3~
U1
V1
W1 PE
ohm
RR+
PE
Electrical installation 59
Compatibility with IT (ungrounded) and corner-grounded
TN systems
EMC filter
WARNING! Do not use the internal EMC filter of the drive in an IT system (an
ungrounded power system or a high-resistance-grounded [over 30 ohms]
power system). If you use the internal EMC filter, the system is connected to the
ground potential through the EMC filter capacitors. This can cause danger or damage
to the drive.
WARNING! Do not use the internal EMC filter of the drive in a corner-grounded
TN system. If you use the internal EMC filter, this can cause damage to the
drive.
When the internal EMC filter is disconnected, the EMC compatibility of the drive
decreases. Refer to Motor cable length on page 93.
EMC filter disconnection
This is applicable only to product variants with
an internal EMC filter.
Refer to Hardware overview on page 28.
To disconnect the EMC filter, remove the EMC
filter grounding screw.
Ground-to-phase varistor
The varistor protects the drive against power line voltage peaks.
WARNING! If you connect the drive to an IT system (an ungrounded power
system or a high-resistance-grounded [over 30 ohms] power system),
disconnect the varistor from ground. Failure to do so can cause damage to the
varistor circuit.
To disconnect the varistor circuit from ground, remove the varistor grounding screw.
Refer to Hardware overview on pag
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