Cold Rolling Mill Solution
INVT GD880 solves pain points such as precise control of multi-roll mills, achieving stable and efficient operation, cost reduction and quality improvement, ensuring reliable operation of cold rolling production lines.
INVT GD880 solves pain points such as precise control of multi-roll mills, achieving stable and efficient operation, cost reduction and quality improvement, ensuring reliable operation of cold rolling production lines.
High difficulty in tension control: Precise control of sheet tension is required, and the drive system must deliver high control accuracy. Otherwise, sheet deviation and scratching are likely to occur, affecting product quality.
High coordination requirements: The drive systems of the entire production line must operate synchronously; coordination imbalance may easily arise and impair production continuity.
Poor spare parts universality and high O&M costs: VFD spare parts for different roller systems have inconsistent specifications, causing difficulties in stocking and inconvenient replacement, which increases maintenance time and costs.
High pressure in operation, maintenance and emergency repair: The production line runs continuously under high load, with slow fault location and complex replacement, resulting in huge losses from downtime.
Prominent safety risks: In high-speed cold rolling scenarios, safety functions must be strictly guaranteed to prevent production accidents caused by equipment out-of-control.
Difficulty in renovation: Risks arise from system compatibility issues during the renovation of old equipment and brand replacement.
With INVT GD880 high-performance industrial drive as the core, the solution focuses on key pain points in precise control, coordinated operation and convenient maintenance for multi-roll mills in sheet cold rolling.Relying on modular design and advanced control algorithms, it achieves stable, efficient, low-consumption and highly reliable operation of the production line, supporting domestic substitution, cost reduction and efficiency improvement.
Precise Control: Adopts a DSP+FPGA+ARM triple-chip architecture, achieving speed stability accuracy of ±0.01%, torque accuracy of ±3%, and torque response time of <5 ms. It suppresses tension fluctuations in real time to ensure precision.
Hassle-Free Integration: Features a multi-drive modular design with an AFE rectifier + inverter common DC bus multi-drive architecture. Spare parts are highly interchangeable, and a single module can be replaced within 30 minutes.
Fault Tracing: Built-in fault black box function supports cyclic recording of 10 channels and 100 sets of fault waveforms, eliminating the need for fault reproduction.
Drive Redundancy Design: Supports dual-channel communication redundancy and power unit redundancy configuration.
Safety Functions: Integrates the STO (Safe Torque Off) function to establish a higher-level safety architecture.
Flexible Control: Built-in free function blocks, seamlessly compatible with various host system protocols and data processing.
Adopting a triple-core coordinated architecture with high-speed loop calculation and ultra-high precision standards, it eliminates issues such as profile distortion and strip breakage, ensures sheet processing accuracy, and increases product yield.
Universal spare parts for the entire production line with independent and quick replacement of units; improves fault tolerance, shortens maintenance time, and reduces spare parts inventory cost.
Accurate traceability with 100 sets of fault waveforms; fault location time reduced from 2 hours to 15 minutes, with quick module replacement for faster production recovery.
Provides a higher level of safety protection, eliminating equipment runaway and personal safety risks in high-speed rolling scenarios.
Perfectly compatible with the production line host and existing systems without modifying PLC programs, shortening the retrofit cycle by 60%.



Repair Progress Tracking | Identity Verification
To protect your repair information, please verify using the mobile number reserved on the service order.

Contact INVT
Get in touch with INVT. Our team will get back to you shortly.
