ABB DSAB-01C ACS800 Diode Module

Description

Key Technical Specifications

• Product Type: Diode module / accessory board.
• ABB Type Designation: DSAB-01C.
• Part Number: 64630199.
• Application: ABB ACS800 drive systems.
• Function: Rectification and protection within the drive assembly.
• Form Factor: Board-level accessory module.
• Country of Origin: Finland, according to ABB ordering data.
• Net Weight: About 0.8 kg.
• Typical Use: Spare replacement for ACS800 drive service and maintenance.
• Revision Note: Verify revision and kit compatibility before installation.

Product Introduction

The ABB DSAB-01C is a diode module used in ABB ACS800 drive assemblies. It serves as a drive accessory board for rectification and protection functions, and ABB ordering data identifies it as type 64630199.

This part is typically purchased as a service spare to keep an installed ACS800 drive operational. The main issue is revision and kit matching, so I would verify the exact drive variant and any upgrade kit requirements before ordering or installing it.

DSAB-01C

DSAB-01C

Installation & Configuration Guide

Stage 1: Pre-Installation Preparation

Time estimate: 5-8 minutes.

1. ⚠️ Safety First: Notify operations of downtime, verify safe state, lock out/tag out power, and wait at least 5 minutes for capacitor discharge.
2. Gather tools: ESD strap, PH1 screwdriver, multimeter, wire labels, and a smartphone for photos.
3. Back up the drive parameter list, document the cabinet wiring, and photograph the board orientation, jumpers, and any connector labels.
4. Verify the replacement part is the exact DSAB-01C / 64630199 version before opening the package.

Stage 2: Removing the Old Module

Time estimate: 5 minutes.

1. Remove the drive cover or access panel.
2. Label and disconnect wiring carefully; do not force connectors.
3. Release the mounting hardware and pull the board straight out to avoid connector damage.
4. Inspect the mounting area and connectors for heat marks, dust, corrosion, or bent pins.
5. ⚠️ Note: Keep the old module until the new one passes full power-up checks.

Stage 3: Installing the New Module

Time estimate: 8-10 minutes.

1. Put on the ESD strap and confirm the model and part number match the removed unit.
2. Configuration clone is critical: copy the exact board orientation, connector routing, and any revision-related details from the old unit photo.
3. Install the board fully and secure it with the original fasteners.
4. Reconnect all wiring using the original labels and routing.
5. Check the self-list: [] settings match, [] wiring secured, [] module seated, [] fasteners locked.

Stage 4: Power-On & Testing

Time estimate: 8-12 minutes.

1. Pre-power check: use a multimeter to confirm there are no shorts on the DC link or related wiring.
2. Power up the drive cabinet first, not the connected motor load.
3. Watch the drive and board status indicators; any fault state means stop and inspect.
4. Verify the drive reports normal startup and the control board is recognized.
5. Run a controlled start and confirm normal drive behavior under no-load or reduced-load conditions.
6. ⚠️ Troubleshooting Note: If the drive faults immediately, check revision match, connector seating, and board compatibility before assuming a failed part.

Frequently Asked Questions

Can this board be hot-swapped under power?
No. Treat it as a powered-down drive service part. An ACS800 cabinet has enough stored energy to make a live swap a bad idea.

Is the DSAB-01C obsolete?
Yes, it is a legacy spare tied to older ACS800 service inventory. That usually means limited stock and more demand for surplus or refurbished units.

What is the direct replacement if this module is unavailable?
The replacement has to match the exact drive variant, revision, and service kit requirements. I would not guess on this one; verify the ABB ordering data and kit notes first.

Will I lose my drive parameters when I replace it?
Usually the parameter set stays in the drive controller, not in the diode module itself. Still, back up the drive configuration before you open the cabinet.

Why is your price lower than ABB list price?
Because this part is commonly sold as surplus or refurbished inventory rather than fresh OEM production. That is normal for discontinued drive spares, but condition and warranty still matter.

What condition should I expect?
Most available units are new surplus or refurbished tested. Ask for test status, revision details, and packaging photos before you buy.

What is the most common installation mistake?
Skipping the revision and kit check. On drive spares, that one mistake is enough to turn a straightforward repair into a compatibility problem.