ABB DCS402.0260 DC Drive

ABB DCS402.0260 DC Drive

 

The ABB DCS402.0260 is a heavy-duty DC drive (DC motor controller) from ABB’s DCS400 series, designed to control brushed DC motors in industrial high-power applications.

Product Information

• Brand: ABB
• Series: DCS400 (DCS402 variant)
• Model: DCS402.0260
• Type: DC Drive / DC Motor Controller
• Rated current: approx. 260 A class
• Application power range: typically 100–150 HP (depending on voltage system)
• Function: DC motor speed, torque, and field control
• Mounting: Cabinet / panel mounted industrial drive

What it actually is

This is a DC motor speed controller, not a PLC or control module.

It is used to:

• Control speed of DC motors
• Control torque and armature current
• Regulate field excitation
• Provide smooth acceleration/deceleration
• Protect motor and drive system

System Role (Simple)

AC supply
→ rectifier inside drive
→ DCS402 DC drive controls output DC voltage/current
→ DC motor
→ mechanical load (conveyors, mills, hoists, etc.)

So it acts as the “brain + power regulator” for DC motors.

Key Features

• Full 4-quadrant DC motor control (motoring + braking)
• Precise speed and torque regulation
• Adjustable field control for DC motors
• High current industrial power stage (~260A class)
• Designed for heavy industrial duty cycles
• Built-in motor protection and diagnostics

Typical Applications

• Steel mills
• Paper machines
• Mining equipment
• Hoists and cranes
• Large conveyors
• Extrusion and rolling machines
• Legacy DC motor systems in factories

Advantages

• Very high torque at low speed (strong DC motor characteristic)
• Excellent speed stability under load changes
• Smooth control of heavy industrial loads
• Robust design for harsh environments
• Ideal for replacing older DC drive systems

Important Notes

• This is NOT a PLC module ❌
• This is NOT a VFD (AC inverter) ❌
• This is a DC motor drive (rectifier-based controller) ✔
• Mostly used in legacy or heavy industrial systems
• DC motors require regular maintenance (brushes, commutators)

Precautions

• Requires correct DC motor matching (voltage/current rating)
• Field supply must be configured properly
• Incorrect tuning can cause motor overheating
• High fault current capability → strict safety wiring required
• Cabinet cooling and ventilation is critical
• Usually needs engineering-level commissioning