Inovance VFD user manual
Hi everyone,
The MD330N AC Drive is a high-performance vector control inverter designed for tension control, based on the MD320N series inverter. It includes winding and unwinding functional modules, and offers a range of winding modes to meet the requirements of tension control for different applications.
The MD330N supports both closed-loop and open-loop tension control modes, as well as a horizontal speed control mode. It has multiple coil diameter calculation modes to attain accurate coil diameter, and complete inertia compensation modules to reduce the tension impact for speed-up and speed-down systems under tension open loop (torque control) mode.
The MD330N has a wide operating voltage range, with three-phase models that can operate at 380-480 Vac with a power range of 0.4 to 22 kW. It has conformal coated PCBs that are suitable for 3S2 and 3C3 environments according to IEC 60721-3-3, and can operate in high ambient temperatures up to 50°C.
The MD330N also supports several communication options, including Modbus-RTU, PROFIBUS-DP, CANopen, and CANlink. It has automatic torque boost, slip compensation, simplified parameters for easy start up, flexible programmable I/Os, user programmable functions, comprehensive trip diagnostics, output frequency of up to 599 Hz, and a built-in dynamic braking unit. The drive also has a range of application-dedicated functions, including textile wobble control, brake control logic, and 4 motor parameter sets. Additionally, it can be controlled using PC-based software for simplified start up and backup.
MD330N is a high-performance vector control inverter designed for tension control, based on the Inovance MD320N series inverter. It has both closed-loop and open-loop tension control modes and supports multiple coil diameter calculation modes for accurate calculation. The inverter also has complete inertia compensation modules to reduce tension impact during speed-up and speed-down.
MD330N has two sets of PID parameters that can be matched via the coil diameter or linear speed, ensuring stable system operation. It can control the tension taper directly or through a pressure sensor closed-loop mode, as well as through a taper analog output to control a proportional valve in swing link sensor tension closed-loop control mode. The taper tension has two modes: curve tension taper mode and multi-fold point of linear tension taper mode, providing good winding and unwinding effect for a variety of materials and processes.
MD330N also has automatic spool changing control logic, simplifying non-stop spool changing. Its rich terminal control functions can simplify winding and unwinding, as well as switching between speed and tension. Even in dyeing machine applications without tension sensors and linear speed sensors, the MD330N can still control the tension and linear constant speed effectively.
The MD330 inverter has two methods for tension control, one is the open-loop torque control mode, and the other is the closed-loop speed control mode. In the open-loop torque control mode, the inverter can control the motor torque instead of frequency, which can be used to adjust the winding shaft torque to control the material tension. The closed-loop speed control mode uses the tension detection feedback signal to form the closed-loop adjustment, and the inverter can adjust the output frequency according to the feedback signal to control the system. Under this mode, the inverter can work in any of the three modes, which are speed sensorless vector control, speed sensor vector control, and V/F control. The closed-loop speed mode has various function modules, including PID settings, linear speed input, diameter calculation, and a second group of PID parameters, which can help adjust the control effect according to the different conditions of the system.
The MD320IO expansion card is designed to support the use of the MD320 series inverter and can add five digital inputs, one analog voltage signal input, one relay signal output, one digital signal output, and one analog signal output. It also has communication functions and supports RS-485 communication mode.
The MD30IN card is an injection molding machine card that supports the use of the MD300 series inverter. It can directly accept 0-1A DC current signals or 0-24V DC voltage signals.
The MD32PG is a general-purpose PG card that can be connected to the adapter of Inovance inverter as a differential encoder. It can be used for closed-loop control of synchronous motors and induction motors.
The MD32WS is a multi-pump water supply control card that can be installed in the MD320 series inverter. It supports variable frequency pump, power pump, sleep pump, sewage pump, and fire pump, and can implement multi-period constant pressure water supply, sleep control, sewage control, timing for pump, pump failure judgment, reports, and auto-exit logic.
The MD320-485 communication card is an expansion card designed for the MD320 inverter and provides RS-232 and RS-485 communication modes. The user can select RS-232 communication card or RS-485 communication card according to the actual needs for controlling the inverter running and parameter setting in the serial port mode.
The MD32PFS is a PROFIBUS card that complies with the international standard of PROFIBUS and can support the use of Inovance inverters, realizing real fieldbus control.
To improve the braking capacity of the inverter, the optional configuration of the braking unit can be used to consume the energy generated in the braking process. For models above 37kW, the MDFB series energy feedback unit can be used to feed the energy generated during the braking process back to the power grid. This product has functions such as over-temperature, over-voltage, and over-current protection, as well as low noise, low harmonic pollution, and high power factor.