Solutions
Lithium-Ion Battery
Roll press
- Large-capacity vector inverter
- Roll press droop control
- Stable high-accuracy tension control
Solutions to the Issues
| Issues | Solutions |
|---|---|
| Stable drive of large-inertia rolls | Large-capacity vector inverter |
| Preventing synchronization loss between roll presses | Roll press droop control |
| Stable tension control | Stable high-accuracy tension control |
Issues
Stable drive of large-inertia rolls
Benefits
Driving using large-capacity vector inverters achieves stable speed control.
- A800 Series inverter lineup includes standard products from 0.4 to 500 kW, and can support vector control by installing dedicated vector motors and vector control I/F.
Point
- When using vector control,
Speed response: 130 Hz
Speed variation: ±0.01%
Product Lineup
Issues
Preventing synchronization loss between roll presses
Benefits
Dedicated droop speed correction FB synchronizes roll press circumferential speed.
- Dedicated droop control FB for roll presses performs correction of slave rolls to counter torque deviations due to differences in circumferential speeds of top and bottom rolls.
Point
- It can handle interference torque in the high-speed region and speed fluctuations in the low-speed region.
Issues
Stable tension control
Benefits
Stable high-accuracy tension control using tension controller
- Stable high-accuracy tension control can be easily achieved using tension controllers. It can support torque control of powder clutches/brakes, AC servos, and vector inverters.
Point
- For powder clutches, tension control from almost-stopped line speeds is possible.
- It suppresses tension fluctuations during acceleration by calculating the material’s moment of inertia and line speed
