Conversion of CW-PACK2 to Parker DC590P 380A for the Slitting Machine Knife Unit

In a steel slitting line, the slitting knife unit is one of the key drive mechanisms, requiring stable speed control and precise coordination with other mechanisms throughout the production line.

Slitting Line - máy xả băng

In this project, Kỹ Thuật Việt Co., Ltd. carried out an upgrade of the DC motor control system for the slitting knife unit, replacing the Japanese CW-PACK2 Thyristor controller with a Parker DC590P 380A to replace the existing control equipment and maintain stable operation of the drive system.

System Configuration Before Conversion

The original system used a CW-PACK2 controller, part of the Japanese Thyristor Leonard Drive series, to control the DC motor driving the slitting knife unit.

CW-PACK2

DC Motor Specifications:

  • Armature Current: 204 A.

  • Field Current: 14 A.

  • Existing Controller: CW-PACK2.

  • Application: Drive system for the steel slitting machine knife unit (Slitting Knife).

Motor DC

After a period of operation, the factory decided to upgrade the system to a Parker DC Drive to replace the existing control equipment.

Conversion Solution Using Parker DC590P 380A

Kỹ Thuật Việt selected the Parker DC590P 380A controller with the following part number:

590P-53338042-P00-U4V0

The DC590P is part of Parker Hannifin’s industrial DC Drive range. It uses Thyristor control technology and supports DC motor control with adjustable speed and torque.

Key features include:

  • Rated armature current: 380 A.

  • DC motor control based on Thyristor rectification technology.

  • Four-quadrant operation, supporting applications requiring reversing and regenerative braking.

  • Supports speed and torque control.

  • Capable of integration with the production line’s automation control system.

Selecting the DC590P 380A meets the armature current requirements of the 204 A motor while providing additional current capacity for the drive system.

Scope of Work

The conversion process involved more than simply replacing the controller. The associated circuits also needed to be inspected and adjusted to ensure that the new equipment was compatible with the existing motor and control system.

The main tasks included:

  • Inspecting the DC motor specifications and the existing CW-PACK2 control system.

  • Checking the armature power circuit and field excitation circuit.

  • Replacing the CW-PACK2 with a Parker DC590P 380A.

  • Connecting control signals, speed feedback signals, and protection signals.

  • Configuring motor parameters, current limits, and control settings.

  • Testing motor operation and verifying coordination with the slitting knife mechanism during operation.

Parker DC590P – A Replacement Solution for Thyristor DC Drives

The conversion from CW-PACK2 to Parker DC590P demonstrates the applicability of the DC590P in industrial DC drive systems currently using older-generation Thyristor controllers.

For factories operating steel slitting lines, rolling mills, winding machines, or other production lines equipped with DC motors, upgrading to the Parker DC590P is a potential solution when replacement of the existing controller is required.

Kỹ Thuật Việt Co., Ltd. supplies Parker AC Drives and DC Drives, while also providing consultation, design, installation, and drive system upgrade services tailored to the specific requirements of each factory.

Parker Vietnam – Kỹ Thuật Việt Co., Ltd.