Description
⚙️ Product Description
The Reliance Electric PISC-75A is a MD-B6027D Drive Control Base Board associated with the Reliance Electric GV3000 adjustable-frequency drive family. The board functions as a control base/interface assembly within the drive, providing the mounting and electrical interconnection structure required by the associated control electronics. The MD-B6027D identification is documented as a Drive Control Base Board for the PISC-75A configuration. It is intended primarily for maintenance and replacement of existing GV3000 drive systems. Because GV3000 configurations vary by drive rating and hardware revision, the complete board number, PISC designation, connector layout, and original drive configuration should be verified before replacement. The GV3000 family is a legacy drive platform, making correctly matched spare boards useful for maintaining installed equipment.
📋 Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | Reliance Electric |
| Model | PISC-75A |
| Board Part Number | MD-B6027D |
| Series | GV3000 |
| Product Name | Drive Control Base Board |
| Product Type | Drive Control / Base PCB |
| Associated Drive Family | Reliance Electric GV3000 |
| Board Function | Control electronics mounting and interconnection |
| Configuration | PISC-75A |
| Hardware Revision | D |
| Application | Adjustable-Frequency AC Drive |
| System Interface | GV3000 drive control architecture |
| Place of Origin | USA / Reliance Electric |
| Product Status | Surplus / verify actual stock condition |
| Dimensions | Verify actual board dimensions before installation |
| Weight | Verify actual packed weight |
| Power | Supplied through the associated GV3000 drive/control assembly |
| Discontinued | Yes — legacy GV3000 platform |
🔧 Functional Features
• Designed for the Reliance Electric GV3000 drive platform
• Associated with the PISC-75A drive configuration
• MD-B6027D identifies the specific drive control base board revision
• Provides mechanical and electrical interconnection for associated drive-control electronics
• Intended for replacement and maintenance of installed GV3000 equipment
• Suitable for industrial motor speed-control applications
• Exact drive rating and hardware configuration should be matched before installation
❓ Frequently Asked Questions
Q1: What is the PISC-75A used for?
A: PISC-75A identifies a GV3000 drive configuration, while MD-B6027D is the corresponding Drive Control Base Board.
Q2: What drive family is the MD-B6027D associated with?
A: It is associated with the Reliance Electric GV3000 adjustable-frequency drive family.
Q3: Is MD-B6027D the same as PISC-75A?
A: They identify related aspects of the assembly. PISC-75A is the configuration designation, while MD-B6027D identifies the Drive Control Base Board.
Q4: Can MD-B6027D replace MD-B6027B or MD-B6027C?
A: Do not assume interchangeability. Different revisions may have different hardware configurations. The original drive model, PISC designation, board revision, connectors, and application should be checked before substitution.
Q5: Is the PISC-75A a complete GV3000 drive?
A: No. PISC-75A refers to the drive/control configuration associated with this base-board assembly. The MD-B6027D itself is a circuit-board component rather than a complete AC drive.
Q6: What should be checked before installation?
A: Verify the complete MD-B6027D part number, PISC configuration, original GV3000 drive model and rating, connector arrangement, mounting position, and associated control boards.
Q7: Is this suitable for new installations?
A: It is primarily a replacement component for existing GV3000 installations. For new systems, current drive platforms should be evaluated separately.
🛠️ Troubleshooting & Safety
If a GV3000 system develops a control fault after replacing the base board, inspect the board connectors, mating control cards, internal wiring, power connections, and drive diagnostic indications. Compare the replacement board carefully with the original before transferring any associated components. Because the GV3000 is a high-voltage motor-drive platform, disconnect and lock out the drive according to applicable electrical safety procedures before servicing. Allow the DC bus to discharge and verify the absence of hazardous voltage before handling internal circuitry.
⭐ Recommended Same-Brand Reliance Electric Models
- Reliance Electric MD-B6027B — PISC-40 Drive Control Base Board
- Reliance Electric MD-B6027C — PISC-40 Drive Control Base Board
- Reliance Electric MD-B6004C — PISC-3 Drive Control Base Board
- Reliance Electric MD-B6032C — PISC-6 Drive Control Base Board
- Reliance Electric MD-B6036D — PISC-16 Drive Control Base Board
- Reliance Electric MD-B6036D — PISC-21 Drive Control Base Board
- Reliance Electric PISC-25 — GV3000 Drive Control Base Board
- Reliance Electric PISC-40 — GV3000 Drive Control Base Board
- Reliance Electric PISC-75A — GV3000 Drive Control Base Board
- Reliance Electric 0-56921-401 — GV3000 Regulator Control Board
- Reliance Electric 0-56921-603 — GV3000 Regulator Board
- Reliance Electric 0-56926-50 — GV3000 Current Feedback Board
- Reliance Electric 0-56936-102 — GV3000 Communication Network Card
- Reliance Electric 0-56949-40 — GV3000 Power PCB Board
- Reliance Electric 56921-512AA — GV3000 Regulator / Control Display Board



