Siemens 6SE7031-7HG84-1JC2 IGD5 Inverter Gating Module
A gating and inverter-control assembly for a documented high-voltage MASTERDRIVES power-unit execution.
Key Information
6SE7031-7HG84-1JC2 is a Siemens IGD5 inverter gating module for a specific high-voltage SIMOVERT MASTERDRIVES power section. Its identity belongs to the complete unit configuration rather than to a stand-alone control accessory.
The complete suffix must be retained. The nearby 6SE7031-7HG84-1JC1 reference is a different hardware revision and should not be treated as interchangeable without a board-level comparison.
Functions
- Interfaces the power-unit control electronics with the inverter switching devices.
- Carries the gating and monitoring paths required by the matching high-voltage power section.
- Preserves the documented IGD5 hardware execution during service of an installed MASTERDRIVES unit.
Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6SE7031-7HG84-1JC2 |
| Product Family | SIMOVERT MASTERDRIVES |
| Module Designation | IGD5 inverter gating module |
| AC Unit Class | 3 AC 660 to 690 V, 50/60 Hz |
| DC-Link Class | 890 to 930 V DC |
| Associated Current Class | 171 A |
| Revision Identifier | Final suffix -1JC2 |
Installation
- Isolate every power source, prove DC-link discharge and apply electrostatic-discharge controls before handling the board.
- Photograph plugs, fiber or ribbon connections, fasteners and grounding points before removal.
- Compare the full 6SE7031-7HG84-1JC2 label and board revision with the removed assembly before transfer.
- Complete static checks and a controlled low-risk commissioning sequence before applying production load.
Lifecycle
- Keep the power-unit nameplate and gating-module label together in the asset record.
- Store tested spares under dry, ESD-controlled conditions suitable for legacy electronics.
- Plan modernization from the complete motor, DC-link, feedback and automation architecture.
FAQ
Can 6SE7031-7HG84-1JC2 be selected only from the 171 A rating?
No. Voltage class, host unit, connector arrangement and the complete -1JC2 revision must also match.
Is 6SE7031-7HG84-1JC2 interchangeable with 6SE7031-7HG84-1JC1?
Do not assume so. Treat JC1 and JC2 as separate board revisions until the host documentation and hardware markings prove compatibility.
What photographs help identify 6SE7031-7HG84-1JC2?
Send the front and rear labels, connector area, component side, host-unit nameplate and cabinet position.
What safety step is critical before replacing 6SE7031-7HG84-1JC2?
Verify isolation and DC-link discharge using the approved service procedure before touching the power section.
What should be tested after installing 6SE7031-7HG84-1JC2?
Check gate-supply health, diagnostics, enable sequence, current response and operation under a controlled load.
Can 6SE7031-7HG84-1JC2 be quoted without the host drive model?
The article can be identified, but the host model and revision are needed for a defensible compatibility review.
