When an OTIS REGEN inverter develops a fault or its GDCB or HVIB board needs to be replaced, board compatibility and parameter configuration are important parts of the replacement process.
According to the supplied service information, the GDCB and HVIB boards must be compatible for the inverter to operate correctly. After identifying the HVIB board specification, the corresponding parameters need to be configured through the GDCB board’s Service Tool.
Check the HVIB Board Before Configuration
The first step is to confirm the part number of the HVIB board.
The supplied information identifies the applicable HVIB board part numbers as:
KBA26800AAZ401 / 402 / 403 / 404
Different inverter current and power specifications require different configurations, so the HVIB board specification should be confirmed before entering the parameters.
For the configuration described in the supplied material, the HVIB drive board is:
KDA26800ABC2
The corresponding GDCB main board shown in the material is:
AEA26800AKTI
REGEN Inverter Parameter Configuration
After identifying the HVIB board, enter the inverter menu through the GDCB main board.
The supplied procedure uses:
M-2-6-4
The following steps are based on the inverter menu described in the original material.
|
Step |
Operation |
| 1 | Enter M-2-6-4 and enter the Factory Password 638 |
| 2 | Select GO ON |
| 3 | Confirm I2CEE Val@2.0000 |
| 4 | Input 20, then press Shift + ENTER |
| 5 | Press Shift + Up |
| 6 | Confirm I2CEE Val@2.0002 |
| 7 | Input 4, then press Shift + ENTER |
| 8 | Press Shift + Up |
| 9 | Confirm I2CEE Val@2.0004 |
| 10 | Enter the corresponding value: 40 for ACD2 MR 404; 30 for ACD2 MR 403; 30 for ACD2 MR 402; 15 for ACD2 MR 401, then press Shift + ENTER |
| 11 | Press Shift + Up |
| 12 | Confirm I2CEE Val@2.0006 |
| 13 | Input 2, then press Shift + ENTER |
| 14 | Press Shift + Down to check the configured parameters |
| 15 | Enter M2-2-5 DSP reset to reset the inverter |
These menu operations and parameter values are taken directly from the supplied document.
Parameter Reference
For the configuration described in the source material:
|
Parameter |
Value |
| I2CEE Val@2.0000 | 20 |
| I2CEE Val@2.0002 | 40 |
| I2CEE Val@2.0004 | 15 / 20 / 30 / 40 |
| I2CEE Val@2.0006 | 2 |
The value of I2CEE Val@2.0004 corresponds to the ACD2 MR type:
- · ACD2 MR 401 → 15
- · ACD2 MR 402 → 30
- · ACD2 MR 403 → 30
- · ACD2 MR 404 → 40
The source material also notes that these settings are associated with the applicable HVIB configuration.
Why Board Compatibility Matters
Replacing an inverter board is not simply a matter of installing a physically matching board.
The supplied information specifically emphasizes that the GDCB and HVIB boards must be compatible. After an HVIB drive board is replaced, the corresponding parameters need to be configured through the GDCB main board before completing the service process.
Correctly identifying the HVIB part number first helps technicians determine the appropriate configuration.
Conclusion
When servicing an OTIS REGEN inverter, the HVIB board part number, GDCB configuration, I2CEE parameters, and DSP reset are important parts of the replacement procedure described in the supplied material.
The basic workflow is:
Confirm HVIB board → Identify the applicable configuration → Enter M-2-6-4 → Configure I2CEE values → Check parameters → Perform DSP reset
The actual elevator model, inverter configuration, and replacement board should always be verified against the applicable service documentation before parameter changes are made.
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Post time: Sep-11-2026