Azure Dynamics DMOC445, Руководство по эксплуатации, Страница: 19 / 35

Proprietary
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DMOC445 Manual and Operating Instructions
2. Variables and Calibration
DMOC diagnostics and configuration is achieved by means of Azure’s diagnostics tool called ccShell,
which allows access to a number of variables (signals) and parameters (a.k.a. calibrations). Variables are
read-only while parameters can be modified (depending on the access rights) in order to configure the
DMOC. Parameter changes can be made persistent by saving them to non-volatile memory (EEPROM).
There also exists a special category of non-volatile parameters which are saved to EEPROM and
maintain their values when the unit is powered down. Non volatile parameters and variables can be
identified by their prefix. The following naming convention is used:
•
EE1, EE2, EEX: parameters
•
EE3: non-volatile variables
3. Error Codes
The DMOC stores error conditions in non-volatile variables and maintains an error history by means of
five variables:
•
EE3LastError : Most recent error
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EE3LastError1 – EE3LastError3 : Error history, where Error3 is the oldest error.
•
EE3ErrorCounter : Total number of errors
Only the four (4) most recent errors are retained.
Error codes are stored in a 16-bit representation where each bit is a signal for a specific error.
•
Bit 0: Over-current phase A (hardware protection)
•
Bit 1: Over-current phase B (hardware protection)
•
Bit 2: Over-current phase C (hardware protection)
•
Bit 3: Over-voltage on DC link (hardware protection)
•
Bit 4: Relay error (hardware protection)
•
Bits 5-6: Reserved
•
Bit 7: Desat Error
•
Bit 8: Relay error (software protection)
•
Bit 9: Phase over-current (software protection)
•
Bit 10: Over-voltage DC link (software protection)
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Bit 11: Current sensor offset calibration error (software protection)
•
Bit 12: Over-speed protection (software protection)
•
Bits 13-15: Reserved