Scope of this technical record
Pre-power and gate-driver verification workflow for an EDS1000-2S0015 with no usable output.
This record does not authorize live repair. Isolate input power, verify DC-link discharge and use controlled bench procedures appropriate to hazardous industrial drive electronics.
Start from the risk of repeated damage
A powered display does not prove the EDS1000 output stage is safe to operate. If a motor does not run or protection occurs as the output should begin switching, the six IGBT/driver relationship becomes the expensive boundary: a damaged A3140 channel or isolated supply can endanger replacement H20R120 devices.
This workflow therefore treats “try again” as a failure of process, not a diagnostic step. Capture whether an IGBT has already failed, whether the motor and cable have been excluded from the fault path, and whether the board matches the reviewed DB1 record.
Branching diagnosis
External output conditions are considered before internal component replacement. Static evidence of bridge damage requires stopping before start commands. Where no bridge short is established but output cannot be created, compare the six driver branches and their supporting environment, recording any component damage or asymmetry.
The G7/braking branch is tracked independently. This matters where a brake-related component is visibly affected but the motor-output switching stage is still under investigation; merging the branches can result in unnecessary replacement of healthy devices.
Pre-power decision checkpoints
| Checkpoint | Evidence sought | Decision |
|---|---|---|
| Output cable/motor | External fault excluded or identified | Do not blame board prematurely |
| Power semiconductor stage | Short/damage evidence | Stop energisation if suspect |
| A3140 channels | Six-path symmetry and support | Repair driver before module fitting |
| Brake branch | Separated G7 evidence | Route braking issue distinctly |
Outcome
A complete record permits repair, replacement or exchange decisions that are tied to the failed boundary. Without that record, a low-cost inverter can consume multiple replacement boards or power devices and still remain unreliable.
Field record checklist
- Capture exact model and board identifiers
- Record symptom timing and previous destructive events
- Preserve rail, connector and component evidence before substitution
Technical basis and reference documents
This is an independent editorial technical reference. Original manufacturer documentation remains controlling for installation, repair and commissioning decisions.
Establishes EDS1000 family identity, rating context and user-level fault/commissioning framework.
Board-level functional mapping derived from reviewed DB1 and DB2 circuit sheets; original drawing is not redistributed on the public site.
Confirms manufacturer/model identity, 1-phase 220 V / 7.5 A listing context, discontinued status and repair-channel presence.
Linked records
The DB1 schematic maps a six-switch H20R120 inverter stage driven through six A3140 channels, with separate high-side supply references for U, V and W phases and low-side channels returned to the negative-side reference. Loss, asymmetry or collateral damage in this path must be considered before replacing the IGBT set.
A six-channel motor-output gate-drive map based on DB1, covering isolated drive channels, H20R120 switching devices and the relationship between U/V/W phase arms and the DC link.