LDF6800N Distributed Frequency Converter
LDF6800N is used in the environment of dampness, dust, vibration, corrosion, etc., which requires the Distributed installation of frequency converter. Meet the protection level of IP65, strong and durable, easy to maintain and other features. The bottom junction box adopts maintenance free pluggable interface and redundant connection of power supply and bus cable, which can be quickly debugged, replaced and upgraded by pulling out the control box. The electric noise intensity is directly proportional to the cable length, so in the Distributed installation, the extremely short cable length of the motor can easily solve the EMC radiation problem in the application site. Two installation methods: support motor installation and wall mounting.
Product Features
Power range: 2t0.75 ~ 2t3.7kw/4t0.75 ~ 4t5.5kw
Input voltage: single / three-phase 200-240v, three-phase 380-460v, fluctuation not more than ± 10%, unbalance rate < 3%
Control mode: V / F control, SVC control
Protection: provide up to 25 kinds of fault protection functions: overcurrent, overload, overvoltage, undervoltage, over temperature, phase loss, etc
Cooling mode: forced air cooling
Installation mode: wall mounted
Centralized vs Distributed installation
Centralized installation:
● the motor speed regulating device is installed in a central control cabinet
Distributed installation:
● motor speed control devices are distributed in the whole plant and installed near the controlled motor
Distributed installation can realize:
● the motor speed control device does not need to occupy the space of the central control cabinet
● in the case of EMC compliance, the length of shielded cable can be greatly reduced
● electronic components directly heat in the factory space
● standardized modular design to reduce design time and facilitate expansion
● faster and easier debugging
Input voltage: single / three-phase 200-240v, three-phase 380-460v, fluctuation not more than ± 10%, unbalance rate < 3%
Control mode: V / F control, SVC control
Protection: provide up to 25 kinds of fault protection functions: overcurrent, overload, overvoltage, undervoltage, over temperature, phase loss, etc
Cooling mode: forced air cooling
Installation mode: wall mounted
Centralized vs Distributed installation
Centralized installation:
● the motor speed regulating device is installed in a central control cabinet
Distributed installation:
● motor speed control devices are distributed in the whole plant and installed near the controlled motor
Distributed installation can realize:
● the motor speed control device does not need to occupy the space of the central control cabinet
● in the case of EMC compliance, the length of shielded cable can be greatly reduced
● electronic components directly heat in the factory space
● standardized modular design to reduce design time and facilitate expansion
● faster and easier debugging
| 電機類型 | 異步機和永磁同步電機 |
| 防護等級 | IP65 |
| EMC | 可選內置濾波器，EMC等級C3 |
| 電磁抱閘 | 可選內置電磁抱閘 |
| 載波調制 | 自動載波調制 |
| 快速限流功能 | 最大限度減少過流故障，盡可能保證模塊不被損壞，保證驅動器的正常運行 |
| 欠壓抑制功能 | 瞬間停電時，有兩種處理方式可選 |
| 過勵磁功能 | 自帶的過勵磁的處理技術，配合外接制動電阻，可以實現(xiàn)快速制動停機 |
| 制動單元 | 內標配置動單元，外加制動電阻即可 |
Technical Specifications
| 電氣規(guī)格 | |
| 輸入電壓 | 單/三相200～240V；三相380～460V；不超過±10%，失衡率＜3% |
| 輸入頻率 | 50/60Hz±5% |
| 輸出電壓 | 0～輸入電壓 |
| 輸出頻率 | 400Hz |
| 性能規(guī)格 | |
| 控制方式 | V/f控制，SVC控制 |
| 過載能力 | 150%額定輸出電流1分鐘，180%額定輸出電流3秒 |
| 速度分辨率 | 數(shù)字設定：0.01 Hz，模擬設定：0.1%×最大頻率 |
| 啟動轉矩 | 0.5Hz 100% V/f；0.5Hz 150% SVC |
| 輸入輸出 | |
| 模擬電源 | +10V，負載能力100mA |
| 數(shù)字電源 | +24V，負載能力200mA |
| 模擬輸入 | AI1：電壓0～10V；AI2：（電壓/電流可選）-10～+10V/0～20mA |
| 模擬輸出 | AI0：0～10V/0～20mA |
| 數(shù)字輸入 | X1-X5，光耦隔離輸入；X5可選為高速脈沖輸入 |
| 繼電器輸出 | TA和TC常開，TA和TB常閉 |
| 通信 | 標配RS485 |
| 環(huán)境特性 | |
| 工作溫度 | -10～+40℃無降額；40～50℃每超過1℃輸出電流降額2% |
| 存貯溫度 | -40～+70℃ |
| 使用環(huán)境 | 室內，不受陽光直曬，無塵埃、腐蝕性和可燃性氣體、油污、水蒸汽、滴水、鹽粉等 |
| 海拔高度 | 1000米以下無降額；1000～4000米需降額使用 |
| 溫度 | 小于90%RH，無水珠凝露 |
| 防護等級 | IP65 強制風冷 |
