日立可变速驱动器

日立变频器

WJ200系列

请求

请求

非常感谢您惠顾“日立变频器”。

本使用说明书记述了日立变频器WJ200系列本体的使用、维护等内容。在使用之前，请熟读本使用说明书。并将本使用说明书交于操作或维护人员保管。

请在安装、运行、检查、维护前仔细阅读本使用说明书。并且，请严格按照说明书中所记载的机器常识、安全信息和注意事项、操作 使用方法等指示内容进行正确操作。

请务必在本使用说明书记载的各种规格范围内使用。另外，请进行正确的检查和维护，以防患于未然。 使用与本变频器相关的选件产品时，也请仔细阅读相关产品的使用说明书。另外，请务必将本使用说明书和各选件说明书送至最终用户处。

关于本书的使用

本使用说明书所记载的内容有可能不经通知而有变更，敬请谅解。 由于本使用说明书不再二次提供，因此请不要丢失，予以妥善保存。 请勿擅自转载本使用说明书部分或全部内容。

本使用说明书是我公司精心制作而成的，若发现本使用说明书中有错误，或存在不清楚的地方敬请垂询。

修订记录表

No.

1 初版

改订内容

实施日 2009/11

说明书No. NT323Z

此栏之外，单纯的错字 漏字、误记的订正、说明的追加等不进行预先通知。

目 录

1.1 安全上注意事项 ································································· 1-1 1.2 EMC

相关注意事项 ································································ 1-5

1.3 UL/cUL相关注意事项 ····························································· 1-6

2.1 购买时的检查 ··································································· 2-1

2.2 使用说明书（本书） ····························································· 2-1 2.3 有关产品咨询的注意事项

························································· 2-2 2.4 产品的质保 ..................................................................... 2-2

3.1 外观 ··········································································· 3-1 3.2 各部位名称 ····································································· 3-4

4.1 安装注意事项 ··································································· 4-1 4.2 穿线板 ········································································· 4-4

5.1 接线的注意事项 ································································· 5-1 5.2 端子台盖板的装卸方法 ··························································· 5-2 5.3 接线图及端子说明 ······························································· 5-3 5.4 主回路的接线 ··································································· 5-6 5.5 控制回路端子和智能继电器输出端子的接线 ········································· 5-12 5.6 与逻辑控制系统（PLC）的接线 ···················································· 5-15 5.7 多台变频器同时使用时的注意事项 ················································· 5-16 5.8 制动电阻的选型与接线 ··························································· 5-18

6.1 运行注意事项 ··································································· 6-1 6.2 运行前 ········································································· 6-2 6.3 启动 ··········································································· 6-2 6.4 本体操作器的操作方法 ··························································· 6-3 6.5 运行方法 ······································································· 6-8 6.6 试运行 ········································································· 6-11 6.7 跳闸 ··········································································· 6-12

目 录

7.1 监视模式 ········································································ 7- 1

7.1.1 输出频率监视 [d001] ··················································· 7- 1 7.1.2 输出电流监视 [d002] ··················································· 7- 1 7.1.3 运行方向监视 [d003] ··················································· 7- 1 7.1.4 PID反馈监视 [d004] ··················································· 7- 2 7.1.5 智能输入端子监视 [d005] ··············································· 7- 2 7.1.6 智能输出端子监视 [d006] ··············································· 7- 2 7.1.7 频率变换监视 [d007] ··················································· 7- 3 7.1.8 实际频率监视 [d008] ··················································· 7- 3 7.1.9 转矩指令监视 [d009] ··················································· 7- 4 7.1.10 转矩偏置监视 [d010] ··················································· 7- 4 7.1.11 输出转矩监视 [d012] ··················································· 7- 4 7.1.12 输出电压监视 [d013] ··················································· 7- 4 7.1.13 输入功率监视 [d014] ··················································· 7- 4 7.1.14 累计功率监视 [d015] ··················································· 7- 5 7.1.15 累计运行(RUN)时间监视 [d016] ·········································· 7- 5 7.1.16 累计通电(ON)时间监视 [d017] ··········································· 7- 5 7.1.17 散热器温度监视 [d018] ················································· 7- 5 7.1.18 寿命诊断监视 [d022] ··················································· 7- 6 7.1.19 程序计数器（EzSQ功能） [d023] ········································ 7- 6 7.1.20 程序编号监视（EzSQ功能） [d024] ······································ 7- 6 7.1.21 用户监视0～2（EzSQ功能） [d025～d027] ································ 7- 6 7.1.22 位置指令监视 [d029] ··················································· 7- 6 7.1.23 现在在位置监视 [d030] ················································· 7- 6 7.1.24 用户选择2种监视 [d050] ··············································· 7- 7 7.1.25 变频器模式监视 [d060] ················································· 7- 7 7.1.26 跳闸次数监视 [d080] ··················································· 7- 7 7.1.27 跳闸监视1～6 [d081-d086] ············································· 7- 8 7.1.28 报警监视 [d090] ······················································· 7- 8 7.1.29 直流电压监视 [d102] ··················································· 7- 9 7.1.30 BRD负载率监视 [d103] ················································· 7- 9 7.1.31 电子热保护负载率监视 [d104] ··········································· 7- 9

7.2 基本功能 ········································································ 7-10

7.2.1 高负载/低负载选择 [b049] ·············································· 7-10 7.2.2 频率指令选择（AT） [A001/A201] ········································ 7-12 7.2.3 运行指令选择 [A002/A202] ·············································· 7-16 7.2.4 RUN键运行方向选择 [F004] ············································· 7-17 7.2.5 运行方向限制选择 [b035] ··············································· 7-17 7.2.6 停止时选择 [b091] ····················································· 7-17 7.2.7 加减速时间 [F002/F202/F003/F203] ······································ 7-18 7.2.8 基频 [A003/A203] ······················································ 7-19 7.2.9 AVR功能 ······························································ 7-19 7.2.10 最高频率 [A004/A204] ·················································· 7-20 7.2.11 载波频率 [b083] ······················································· 7-20

目 录

7.3 输入输出端子 ··································································· 7-21

7.3.1 智能输入端子选择 ····················································· 7-21 7.3.2 智能输入端子接点选择 ················································· 7-23 7.3.3 输入端子应答时间 ····················································· 7-23 7.3.4 智能输出端子选择 ····················································· 7-24 7.3.5 智能输出端子接点选择 ················································· 7-25 7.3.6 输出端子ON/OFF延迟时间功能 ·········································· 7-26

7.4 模拟端子 ······································································· 7-27

7.4.1 模拟输入[O][OI]端子 ·················································· 7-27 7.4.2 模拟输入滤波器 [A016] ················································ 7-28 7.4.3 模拟指令保持功能（AHD） ·············································· 7-28 7.4.4 模拟输入调整 [C081/C082] ············································· 7-28 7.4.5 外部频率起始 结束 ··················································· 7-29 7.4.6 脉冲输出[EO]端子 [C027] ·············································· 7-30 7.4.7 模拟输出[AM]端子 [C028] ·············································· 7-31

7.5 运行相关的功能 ································································· 7-32

7.5.1 控制方式（V/f特性） [A044/A244] ······································ 7-32 7.5.2 转矩提升 ····························································· 7-34 7.5.3 3线输入功能（STA,STP,F/R） ··········································· 7-36 7.5.4 启动频率 [b082] ······················································ 7-37 7.5.5 减电压启动选择 [b036] ················································ 7-37 7.5.6 点动运行（JG） ······················································· 7-38 7.5.7 频率限制 ····························································· 7-39 7.5.8 跳频功能 ····························································· 7-39 7.5.9 加减速保持功能 ······················································· 7-40 7.5.10 运行许可信号 ························································· 7-40 7.5.11 多段速运行功能（CF1～CF4,SF1～SF7） ·································· 7-41 7.5.12 2段加减速功能（2CH） ················································· 7-43 7.5.13 加减速选项 ··························································· 7-44 7.5.14 频率计算功能 ························································· 7-46 7.5.15 频率加算功能 ························································· 7-46 7.5.16 远程操作功能（UP,DWN） ··············································· 7-47 7.5.17 输出电压增益 [A045/A245] ············································· 7-47 7.5.18 PID功能 ····························································· 7-48 7.5.19 自动节能运行功能 [A085/A086] ········································· 7-52 7.5.20 工频切换（CS） ······················································· 7-52 7.5.21 稳定性常数 ··························································· 7-53 7.5.22 第2控制功能（SET） ·················································· 7-54 7.5.23 脉冲列频率输入 ······················································· 7-55 7.5.24 带FB V/f控制 ························································ 7-55

目 录

7.6 操作器 显示相关的功能 ·························································· 7-56

7.6.1 STOP/RESET键选择 [b087] ·············································· 7-56 7.6.2 软锁（SFT）[b031] ····················································· 7-56 7.6.3 強制操作器功能（OPE） ················································· 7-57 7.6.4 強制终端功能（F-TM） ·················································· 7-57 7.6.5 操作器断线时动作选择 [b165] ··········································· 7-57 7.6.6 初始界面选择（电源投入时的初始界面） [b038] ··························· 7-58 7.6.7 初始界面自动变换选择 [b164] ··········································· 7-58 7.6.8 操作器连接时本体显示选择 [b150] ······································· 7-58 7.6.9 显示固定（DISP） ······················································ 7-58 7.6.10 表示限制[b037] ························································ 7-59 7.6.11 密码功能 ······························································ 7-61

7.7 重启动相关的功能 ································································ 7-63

7.7.1 f匹配再启动和频率引入再启动 ·········································· 7-63 7.7.2 瞬停/欠电压 过电压/过电流跳闸重启 ···································· 7-64 7.7.3 复位（RS） ···························································· 7-68 7.7.4 自由滑行停止（FRS） ··················································· 7-70 7.7.5 恢复电源再启动防止功能（USP） ········································· 7-71 7.7.6 电源切断时减速停止（瞬停不停止功能） ·································· 7-72

7.8 保护 警告 各中输出相关的功能 ·················································· 7-74

7.8.1 跳闸信号（AL） ························································ 7-74 7.8.2 电子热保护功能 ························································ 7-75 7.8.3 过负载限制/过负载预告 ················································· 7-77 7.8.4 过电流抑制功能 [b027] ················································· 7-78 7.8.5 减速时过电压抑制功能 ·················································· 7-79 7.8.6 外部跳闸（EXT） ······················································· 7-80 7.8.7 热敏电阻跳闸功能 ······················································ 7-80 7.8.8 自动载波降低 [b089] ··················································· 7-81 7.8.9 运行中信号（RUN） ····················································· 7-82 7.8.10 频率到达信号（FA1～FA5） ·············································· 7-82 7.8.11 运行时间 通电时间超过（RNT/ONT）[b034] ······························· 7-84 7.8.12 0Hz信号（ZS）[C063] ·················································· 7-84 7.8.13 输出信号逻辑计算（LOG1～LOG3） ········································ 7-85 7.8.14 风扇动作选择 ·························································· 7-86 7.8.15 风扇寿命信号（WAF）[b075] ············································· 7-86 7.8.16 电容寿命预告信号（WAC） ··············································· 7-86 7.8.17 通信断线检出信号（NDc） ··············································· 7-87 7.8.18 启动接点信号（FR） ···················································· 7-87 7.8.19 散热器过热预告（OHF）[C064] ··········································· 7-87 7.8.20 低电流信号（LOC） ····················································· 7-88 7.8.21 运行准备结束信号（IRDY） ·············································· 7-88 7.8.22 正转运行中信号（FWR） ················································· 7-89 7.8.23 反转运行中信号（RWR） ················································· 7-89 7.8.24 重故障信号（MJA） ····················································· 7-89 7.8.25 窗口比较器（WCO/WCOI）（断线检出 Odc/IODc） ···························· 7-90

目 录

7.8.26 频率指令选择状态信号（FREF） ········································· 7-91 7.8.27 运行指令状态信号（REF） ·············································· 7-91 7.8.28 第二控制选择中信号（SETM） ··········································· 7-91

7.9 制动相关的功能 ································································· 7-92

7.9.1 直流制动（DB） ······················································· 7-92 7.9.2 BRD（再生制动）功能 ·················································· 7-96 7.9.3 制动控制功能 ························································· 7-97

7.10 无速度传感器矢量控制 ·························································· 7-99

7.10.1 电机常数选择 ························································· 7-99 7.10.2 离线自整定功能 ······················································ 7-100 7.10.4 无速度传感器矢量控制 ················································ 7-103 7.10.5 转矩监视功能 ························································ 7-104 7.10.6 超过/不足转矩（OTQ） ················································ 7-104 7.10.7 转矩限制功能 ························································ 7-105 7.10.8 转矩LADSTOP功能 [b045] ············································· 7-106 7.10.9 转矩控制 ···························································· 7-107 7.10.10 转矩偏置功能 ························································ 7-107 7.10.11 反转防止功能 [b046] ················································· 7-107

7.11 简易位置控制功能 ····························································· 7-108

7.11.1 编码器连接 ·························································· 7-108 7.11.2 简易位置控制设定 ···················································· 7-110 7.11.3 多段位置切换功能 ···················································· 7-112 7.11.4 速度/位置切换功能 ··················································· 7-113 7.11.5 原点恢复功能 ························································ 7-114

7.12 其它功能 ····································································· 7-115

7.12.1 初始化设定 ·························································· 7-115 7.12.2 用户参数登录功能 ···················································· 7-117 7.12.3 用户参数自动登录功能 [b039] ········································· 7-117 7.12.4 EzSQ功能（简易编程） ················································ 7-118 7.12.5 安全功能（GS1/GS2） ················································· 7-119

8.1 通信式样 ······································································ 8-1 8.2 端口式样及连接 ································································ 8-1 8.3 通信参数一览 ·································································· 8-2 8.4 Modbus通信协议 ································································ 8-2 8.5 功能代码说明 ·································································· 8-6 8.6 记存器变更 ···································································· 8-15 8.7 变频器间通信（EzCOM） ························································· 8-16 8.8 线圈 寄存器编号一览 ·························································· 8-19

目 录

9.1 故障显示 ······································································ 9-1

9.2 故障代码一览 ·································································· 9-2

9.3 警告显示 ······································································ 9-5

9.4 其它显示示 ···································································· 9-6

11.1 日常维护 检查的注意事項 ·····················································

11-1 11.2 检查项目 ····································································· 11-2 11.3 兆欧表测试 ··································································· 11-3 11.4 耐压测试 ····································································· 11-3 11.5 变频，整流部位的检查方法 ····················································· 11-4 11.6 输入输出电压，电流，功率的测定方法 ··········································· 11-5 11.7 整流电容寿命曲线 ····························································· 11-6 11.8 寿命警告输出 ································································· 11-6

12.1 式样表 ······································································· 12-1 12.2 外形尺寸图 ··································································· 12-3 12.3 降额定表 ····································································· 12-8

13.1 参数设定时的注意 ····························································· 13-1 13.2 监视模式 ····································································· 13-1 13.3 功能模式 ····································································· 13-2

2章 3

章

第1章

7

章

1.1 安全注意事项 .................. 1-1 1.2 EMC相关注意事项 .............. 1-5 1.3 UL/cUL相关注意事项 ........... 1-6

在本章中，对安全和规格相关的注意事项做出了说明。

1章

安全注意事项

（ 备 忘 ）

1

章 安全注意事项

1.1安全注意事项

在安装、运行、维护 检查之前，请务必仔细阅读本使用说明书和其它附带资料。 在本使用说明书中，安全注意事项内容被分为「危险」和「注意」。

危险

：错误使用时，会发生危险情况，可能造成人身伤亡。

注意

：错误使用时，会发生危险情况，可能造成轻伤、中度的人身伤害和设备的损坏。

注意 中记载的事项，也有可能造成重大事故。这些安全注意事项栏中所记载的都是重要的内容， 请务必遵守。此外，在本文中以“注”形式记载有注记事项，对这些内容也要引起注意并务必遵守。

注 意

本使用说明书中记载的所有图解中，为了说明内部结构，有时描绘的是将盖板或遮挡物取下之后的状态。 在运行本产品时请务必按照规定先将盖板和遮挡物复原，然后再按照使用说明书运行。

１．关于安装 注 意

请安装在金属等不可燃物体上。否则有火灾危险。 请勿在附近放置易燃物品。否则有火灾危险。 搬运时请勿提其表面盖板。否则有掉落和致伤的危险。

请勿让电线头、焊渣、铁屑、金属丝、垃圾等异物进入。否则有火灾危险。 请安装在能够承受本说明书中记载的变频器重量的地方。否则有掉落和致伤的危险。 请安装在无振动的垂直壁面上。否则有掉落和致伤的危险。 请勿安装和运行有损伤或部件缺损的变频器。否则有致伤危险。

请安装在通风良好的房间内，避免阳光直射，避开高温、潮湿、易结露的环境和有灰尘、腐蚀性气体、 爆炸性气体、易燃性气体、切削液的雾气和盐腐蚀等场所。否则有火灾危险。

变频器是精密设备。请勿让其掉落或受强冲击。另外，请勿坐在（或站在）变频器上，勿在上面放置重物。 否则可能导致变频器故障。

1章 安全注意事项

２．关于接线

危 险

请务必连接地线。否则有触电、火灾的危险。

请由电工专业人员来完成配线工作。否则有触电、火灾的危险。 请确定电源OFF后再配线。否则有触电、火灾的危险。 请务必在本体安装好后再配线。否则有触电、致伤的危险。

注 意

请确认交流电源的电压与产品的额定电压一致性。否则有致伤、火灾的危险。 三相输入用的机型请勿采取单相输入。否则有火灾的危险。

请勿将输出端子（U，V，W）连接到交流电源上。否则会造成机器损坏，有致伤、火灾的危险。 请勿将电阻器直接连接到直流母线端子（PD，P，N）。否则有火灾的危险。 请在电源输入侧设置漏电断路器。否则有触电、火灾的危险。

请按额定容量选用动力线、漏电断路器、电磁接触器。否则有火灾的危险。 请不要通过设置在变频器的电源侧或输出侧的电磁接触器进行运行/停止的切换。 否则会缩短变频器的使用寿命或有致伤、火灾的危险。 请使用规定的扭矩安装螺钉。确保螺钉不松动。 否则有火灾的危险。

对于变频器内部的拨动开关SW1的操作，请确认电源OFF(断开)后再进行。 否则有触电、致伤的危险。

本变频器有冷却风扇旋转/停止选择功能，即使风扇停止电源也不一定是切断状态， 所以请务必确认输入电源的OFF(断开)。 否则有触电、致伤的危险。

1

章 安全注意事项

３．关于运行 危 险

请勿触碰通电中的变频器的内部和端子部、勿进行信号确认或取下配线和连接件。 否则有触电、火灾的危险。

请务必合上端子台盖板后再通电。通电中或有残留电压时勿打开端子台盖板。 否则有触电的危险。

请勿用潮湿的手进行开关操作。否则有触电的危险。 在变频器通电期间，即使是停止状态也勿触碰变频器的端子。 否则有致伤、火灾的危险。

选择重起模式时，跳闸停止后会突然重起。请勿靠近设备。 (请按即使重起仍能确保人身安全的方案进行机械设计。) 否则有致伤的危险。

重起动作过程中，因为会产生自由滑行状态，所以对升降、行走装置请勿选择重起模式。 否则可能引起伤害、设备损坏。

若在输入了运行指令的情况下发生了短时间停电，在重新上电后会再次运行。可能对人身安全等造成危险，请将电路设计成重新上电不会再次运行的电路。否则有致伤的危险。 操作器的STOP键只在功能设定后才有效。请另行准备紧急停止开关。 否则有致伤的危险。

在仍有运行指令时若复位报警则会突然重起。请在确认切断运行指令后再将报警复位。 否则有致伤的危险。

请勿触摸或将棒状物体伸入通电的变频器内部。 否则有触电、火灾的危险。

注 意

散热器有高温。请勿触摸。否则有烧伤的危险。

变频器设定由低速到高速运行很容易。请在充分确认电机和机械的允许范围后再运行。 否则有致伤或机械损坏的危险。

需要保持制动器时请另行准备。否则有致伤的危险。

在超过60Hz的频率下运行标准电机时，请在向厂家确认了电机和机械侧的允许转速后再运行。 否则易导致设备损坏或人身伤害。

请确认运行时电机的转向、声音、振动是否正常。 否则可能引起伤害、设备损坏。

1章 安全注意事项

４．关于维护 检查和零部件的更换 危 险

请在切断电源10分钟后再进行检查。 否则有触电的危险。 (确认本体充电指示灯已经熄灭、或者检查P-N端子间的直流母线电压，确认其已经低于45V。) 指定人员以外的人员请勿进行维护 检查、零部件的更换。 (作业前请取下手表、戒指等金属物。作业时请务必使用绝缘工具。) 否则有触电、致伤的危险。 ５．使用上的注意事项

危 险

请绝对不要进行产品改造。否则有触电、致伤的危险。

1

章 安全注意事项

1.2 EMC(电磁兼容性)相关注意事项 CE-EMC Installation Guidelines

You are required to satisfy the EMC directive (2004/108/EC) when using a WJ200 inverter in an EU country. To satisfy the EMC directive and to comply with standard, you need to use a dedicated EMC filter suitable for each model, and follow the guidelines in this section. Following table shows the compliance condition for reference.

Table 1. Condition for the compliance

Model Cat. Carrier f Motor cable

All WJ200 series C1 2kHz 20m (Shielded) Table 2. Applicable EMC filter Input class Inverter model Filter model (Schaffner)

WJ200-002SF

FS24828-8-07

WJ200-004SF

1-ph. 200V class WJ200-007SF

FS24828-27-07 WJ200-015SF

WJ200-022SFWJ200-004HF

FS24830-6-07

WJ200-007HF WJ200-015HF

FS24830-12-07

WJ200-022HF

3-ph. 400V class WJ200-055HF

FS24830-29-07

WJ200-075HF WJ200-110HF

FS24830-48-07

WJ200-150HF

WJ200-150H needs to be installed in a metal cabinet and add ferrite core at the input cable to meet category C1. Unless otherwise category C2.

1章 安全注意事项

Important notes

1. Input choke or other equipment is required if necessary to comply with EMC directive from the harmonic

distortion point of view (IEC 61000-3-2 and 4).

2. If the motor cable length exceeds 20m, use output choke to avoid unexpected problem due to the leakage

current from the motor cable (such as malfunction of the thermal relay, vibration of the motor, etc..).

3. As user you must ensure that the HF (high frequency) impedance between adjustable frequency inverter,

filter, and ground is as small as possible. Ensure that the connections are metallic and have the largest possible contact areas (zinc-plated

mounting plates).

4. Avoid conductor loops that act like antennas, especially loops that encompass large areas.

Avoid unnecessary conductor loops. Avoid parallel arrangement of low-level signal wiring and power-carrying or noise-prone conductors. 5. Use shielded wiring for the motor cable and all analog and digital control lines.

Allow the effective shield area of these lines to remain as large as possible; i.e., do not strip away

the shield (screen) further away from the cable end than absolutely necessary. With integrated systems (for example, when the adjustable frequency inverter is communicating

with some type of supervisory controller or host computer in the same control cabinet and they are connected at the same ground + PE-potential), connect the shields of the control lines to ground + PE (protective earth) at both ends. With distributed systems (for example the communicating supervisory controller or host computer is not in the same control cabinet and there is a distance between the systems), we recommend connecting the shield of the control lines only at the end connecting to the adjustable frequency inverter. If possible, route the other end of the control lines directly to the cable entry section of the supervisory controller or host computer. The shield conductor of the motor cables always must connected to ground + PE at both ends. To achieve a large area contact between shield and ground + PE-potential, use a PG screw with a

metallic shell, or use a metallic mounting clip. Use only cable with braided, tinned copper mesh shield (type “CY”) with 85% coverage. The shielding continuity should not be broken at any point in the cable. If the use of reactors,

contactors, terminals, or safety switches in the motor output is necessary, the unshielded section should be kept as short as possible. Some motors have a rubber gasket between terminal box and motor housing. Very often, the

terminal boxes, and particularly the threads for the metal PG screw connections, are painted. Make sure there is always a good metallic connection between the shielding of the motor cable, the metal PG screw connection, the terminal box, and the motor housing. If necessary, carefully remove paint between conducting surfaces.

6. Take measures to minimize interference that is frequently coupled in through installation cables.

Separate interfering cables with 0.25m minimum from cables susceptible to interference. A

particularly critical point is laying parallel cables over longer distances. If two cables intersect (one crosses over the other), the interference is smallest if they intersect at an angle of 90°. Cables

susceptible to interference should therefore only intersect motor cables, intermediate circuit cables, or the wiring of a rheostat at right angles and never be laid parallel to them over longer distances.

7. Minimize the distance between an interference source and an interference sink (interference- threatened

device), thereby decreasing the effect of the emitted interference on the interference sink. You should use only interference-free devices and maintain a minimum distance of 0.25 m from the

adjustable frequency inverter.

8. Follow safety measures in the filter installation.

If using external EMC filter, ensure that the ground terminal (PE) of the filter is properly connected

to the ground terminal of the adjustable frequency inverter. An HF ground connection via metal contact between the housings of the filter and the adjustable frequency inverter, or solely via cable shield, is not permitted as a protective conductor connection. The filter must be solidly and

permanently connected with the ground potential so as to preclude the danger of electric shock upon touching the filter if a fault occurs.

To achieve a protective ground connection for the filter:

2

Ground the filter with a conductor of at least 10 mm cross-sectional area.

Connect a second grounding conductor, using a separate grounding terminal parallel to the

protective conductor. (The cross section of each single protective conductor terminal must be sized for the required nominal load.)