施耐德電機 LRD32 過載繼電器使用手冊

一、簡介

This manual provides essential information for the safe and effective installation, operation, and maintenance of the Square D LRD32 Overload Relay. Please read this manual thoroughly before attempting to install or operate the device. Retain this manual for future reference.

2. 安全訊息

警告：有觸電或爆炸危險。

• 只有具備資質的人員才能安裝、操作、維修和保養此設備。
• 在設備上工作之前斷開所有電源。
• 始終使用正確額定的捲tage 感應裝置確認電源已關閉。
• Replace all devices, doors, and covers before turning on power.
• 不遵守這些指示將導致死亡或嚴重受傷。

This device is designed for industrial control applications. Ensure all local and national electrical codes are followed during installation.

3. 產品結束view

The Square D LRD32 is a bimetallic, adjustable thermal overload relay designed to protect motors from overcurrent conditions. It features a Trip Class 10 rating, suitable for standard motor starting applications. The relay offers both automatic and manual reset options and is ambient temperature compensated for reliable operation across varying environmental conditions.

圖1： Square D LRD32 Overload Relay. The device features a white front panel with 'Schneider Electric' branding, 'LRD' indicator, blue 'RESET' button, red 'STOP' button, and screw terminals labeled 97 NO, 98 NO, 95 NC, 96 NC. The base has terminals labeled 2T1, 4T2, 6T3. The unit is dark gray and white.

主要特點：

• Bimetallic, Thermal Overload Protection
• Adjustable Trip Class 10
• 3-Pole Configuration
• Automatic/Manual Reset Capability
• Motor FLA Range: 23 to 32 Amp埃雷
• Ambient Temperature Compensated
• 螺桿Clamp 終端
• Direct Contactor/Starter Mounting
• Application for 1-Phase Systems
• UL, CSA, CE Approved

成分：

• LRD Indicator: 顯示繼電器的狀態。
• RESET Button (Blue): Used to manually reset the relay after a trip.
• 停止按鈕（紅色）： Used to manually stop the motor.
• Current Adjustment Dial: Allows setting the motor's full load ampere (FLA) within the specified range (23-32A).
• 輔助接點（97 常開，98 常開，95 常閉，96 常閉）： Normally Open (NO) and Normally Closed (NC) contacts for control circuit integration.
• Power Terminals (2T1, 4T2, 6T3): Output terminals for connection to the motor.

4. 設定與安裝

The LRD32 overload relay is designed for direct mounting onto compatible contactors or starters. Ensure the power supply is disconnected before proceeding with installation.

安裝步驟：

1. 安裝： Align the LRD32 relay with the output terminals of the contactor/starter. Securely attach the relay, ensuring a firm electrical and mechanical connection.
2. 電源電路佈線： Connect the motor's power leads to the relay's output terminals (2T1, 4T2, 6T3) using appropriate gauge wiring. Ensure all screw clamp terminals are tightened to the manufacturer's specified torque.
3. 控制電路佈線： Connect the auxiliary contacts (97 NO, 98 NO, 95 NC, 96 NC) into your control circuit as required for motor start/stop and fault indication.
4. 目前設定： Adjust the current adjustment dial on the front of the relay to match the motor's full load ampere (FLA) rating. The range for this model is 23 to 32 Amp埃雷斯。
5. Reset Mode Selection: If applicable, select between automatic and manual reset modes according to your application requirements.

IMPORTANT: Verify all connections are secure and correct before restoring power.

5. 操作說明

Once installed and wired, the LRD32 overload relay operates automatically to protect the motor. Manual intervention is typically required only for resetting after a trip or for manual stopping.

正常運作：

• When the motor is running within its rated current, the relay remains in its normal operating state.
• If an overcurrent condition occurs, the bimetallic strips within the relay heat up and cause the relay to trip, opening the control circuit and stopping the motor.

Resetting the Relay:

• 手動復位： After a trip, allow a brief cooling period (typically a few minutes). Press the blue 'RESET' button on the front of the relay to restore the control circuit and allow the motor to be restarted.
• 自動重置： If configured for automatic reset, the relay will reset itself after a cooling period without manual intervention. Ensure this mode is appropriate for your application, as it may allow the motor to restart unexpectedly.

手動停止：

• Press the red 'STOP' button on the front of the relay to manually open the control circuit and stop the motor.

6、維護保養

The Square D LRD32 Overload Relay is designed for reliable, long-term operation with minimal maintenance. Regular inspections are recommended to ensure optimal performance and safety.

建議維護：

• 目視檢查： 定期檢查繼電器是否有物理損壞、變色或連接鬆動等跡象。
• 打掃： 保持繼電器清潔，避免灰塵和碎屑堆積。請使用乾燥柔軟的布進行清潔。切勿使用溶劑或研磨性清潔劑。
• 連接檢查： Ensure all screw clamp terminals remain tight. Loose connections can lead to overheating and unreliable operation.
• 功能測試： Occasionally test the trip function by simulating an overload condition (if safely possible and recommended by system design) or by using the manual stop/reset buttons.

注意：在進行任何維護或檢查之前，請務必中斷電源。

7。 故障排除

This section provides guidance for common issues encountered with the LRD32 Overload Relay.

8. 規格

9. 保固和支持

For warranty information or technical support regarding your Square D LRD32 Overload Relay, please contact Square D customer service or visit their official website. Keep your purchase receipt and product model number (HM-06215) handy when seeking support.

For further assistance, refer to the contact information provided by your distributor or the manufacturer's official channels.