Siemens 6SE7026-0HF84-1JC0 IGD2 Triggering Module
An IGD2 inverter triggering module for defined SIMOVERT MASTERDRIVES chassis power sections.
Technical Summary
6SE7026-0HF84-1JC0 is a Siemens SIMOVERT MASTERDRIVES IGD2 inverter triggering module. It is documented for 6SE7026-0HF and 6SE7028-2HF chassis arrangements with defined voltage and current classes.
The module belongs inside a high-energy converter power section. Exact host identity, semiconductor population, firing connections and hardware release must be established before replacement.
Specifications
| Manufacturer | Siemens |
|---|---|
| Model | 6SE7026-0HF84-1JC0 |
| Product Family | SIMOVERT MASTERDRIVES 6SE70 |
| Module Designation | IGD2 inverter triggering module |
| Applicable Host Frames | 6SE7026-0HF and 6SE7028-2HF |
| AC System Class | 3-phase 660–690 V AC, 50/60 Hz |
| DC System Class | 890–930 V DC |
| Documented Current Classes | 60 A and 82 A |
| Service Position | A29 in the documented chassis spare-parts arrangement |
| Electrical Safety | High-voltage isolation and DC-link discharge are mandatory |
Features
- Provides the documented IGD2 triggering function for its supported converter power section.
- Uses a complete Siemens MLFB that separates it from IGD5 and IGD6 triggering modules.
- Supports component-level service of legacy 6SE70 chassis converters.
- Keeps firing-module selection tied to the host power rating and semiconductor arrangement.
Compatibility
- Match the complete host converter MLFB, voltage class, current class and chassis construction.
- Compare connector keying, firing leads, semiconductor markings and board hardware index.
- Do not install an IGD5 or IGD6 module in place of the documented IGD2 assembly.
- Verify the surrounding power supply, IVI board, rectifier modules and IGBT population before release.
Replacement
- Isolate the mains and prove the DC link discharged before accessing the chassis.
- Photograph firing leads, fibre or signal connections and mechanical supports before removal.
- Inspect the power semiconductors and associated fuses so a failed load does not damage the replacement.
- Use controlled precharge, gate verification and staged no-load then loaded testing.
FAQ
6SE7026-0HF84-1JC0: Which host information is essential before ordering?
Provide the full converter MLFB, nameplate ratings, chassis photographs, removed-module label and power-semiconductor markings.
6SE7026-0HF84-1JC0: Why is another 6SE70 triggering board not automatically interchangeable?
IGD2, IGD5 and IGD6 assemblies are assigned to different power-section designs and connection arrangements.
6SE7026-0HF84-1JC0: What should be investigated after a triggering-module failure?
Check the related IGBTs, gate leads, power supplies, fuses, insulation and cooling path before fitting a replacement.
6SE7026-0HF84-1JC0: What should a repair test certificate identify?
Request the exact module revision, simulated gate operation, isolated-supply results, connector inspection and the tested host configuration.
How should 6SE7026-0HF84-1JC0 be recommissioned?
Use approved precharge and interlock checks, confirm all gate channels, begin without load and increase load while monitoring current balance and temperature.
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