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The application note includes a table of required components for the pre-charge and discharge circuit for both Size 8 and Size 10 controllers. Here is a summary of the key components needed for a Size 8 system:
The is a high-performance AC motor controller designed specifically for on-road and off-road electric (EV) and hybrid electric vehicles (HEV). Known for its compact and rugged design, it is a preferred choice for EV OEMs and drivetrain system integrators due to its high power density and advanced safety features. Technical Specifications & Ratings
Properly interfacing the heavy-gauge power lines and delicate control wires is critical to preventing hardware failure and electrical noise interference. High-Voltage (HV) Terminals
Capable of delivering up to 600A RMS (model-dependent) for short durations to provide maximum starting torque. sevcon gen4 size 8 manual
IP66 or IP6k9k protection; operates from -40°C to +85°C. Wiring and Integrated I/O
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Inspect shielding on encoder cables; check sensor power supply pins. CAN Heartbeat Timeout
The Size 8 model is tailored for high-voltage applications, often found in heavy-duty conversions and commercial transport. 128 V to 400 VDC. Power Output: Up to 100 kW peak and 60 kW continuous. Current Ratings (Arms): Boost: 400 Arms. 30-Second Peak: 360 Arms. 2-Minute Peak: 300 Arms. Continuous: 200 Arms. I can provide the precise or wiring pinouts
Up to 400A or 500A RMS (depending on the specific variant) for up to 2 minutes.
: Designed for ISO 26262 ASIL C compliance and includes a dedicated safety supervisory processor.
Integrated liquid cold plate (water/glycol mix) Maximum Chill Plate Temperature: 70°C (158°F) Weight: Approximately 11.5 kg (25.4 lbs) 2. Power and Signal Terminals
If your system has more than one CAN node, connect them in a daisy‑chain and terminate the two ends with resistors. For a Gen4 end node, link pins 2 and 24 on the 35‑pin connector to enable the built‑in 120 Ω termination resistor. In a single‑node system, the termination resistor should still be connected. Known for its compact and rugged design, it
Residual high voltage remains in the internal capacitors long after the battery is disconnected. Measure the voltage across B+ and B- before touching terminals.
The Gen4 Size 8 is engineered for advanced control and flexibility, featuring:
represents a high-performance solution for demanding AC induction and permanent magnet motor applications, frequently used in electric vehicles, material handling equipment, and specialized industrial machinery.
: Functions reliably between -40°C and +85°C . Manuals & Resources
The Sevcon Gen4 Size 8 is a high-performance AC motor controller primarily used in electric and hybrid electric vehicles (EV/HEV). This controller is designed to meet the high performance and safety requirements of both on-road and off-road electric vehicles. The hardware platform of the new controller supports both AC induction and permanent magnet AC motor control technologies. With its compact, rugged design and IP66 rating, it is well-suited for demanding environments and is a popular choice among EV OEMs, conversion specialists, and drive train system integrators.