: Use the barrier terminal block for connections. Secure the AC line inputs and the motor armature leads (A+ and A-) according to the BC138 Installation & Operating Manual .
: Limits the maximum current to protect the motor from failure or demagnetization. 4. Safety Features
: You must install a Plug-in Horsepower Resistor® . This component automatically sets the drive’s IR compensation and current limit (CL) to match your specific motor’s horsepower. 3. Fine-Tuning (Trimpot Adjustments) bc138.rar
: Install the drive in a well-ventilated area using its NEMA-1/IP20 metal enclosure. You can reorient the front cover to allow for top or bottom wiring.
: The BC138 includes both AC line and armature fusing to prevent damage during catastrophic electrical failures. : Use the barrier terminal block for connections
: Fine-tune the motor's speed regulation under varying loads.
For detailed wiring diagrams and resistor selection charts, you should refer to the full BC138 - BC139 DC Control Manual . If you'd like, I can help you: If you'd like
Before operating the drive, ensure you have the correct input voltage and motor compatibility. : 115 VAC, 50/60 Hz. Output Rating : 0–90 VDC armature voltage. Horsepower Range : 1/100 to 1/3 HP. 2. Installation Steps