Heico EMD Epsilon EPS 45-80, Техническое руководство

Страница: 199 / 262

7. Troubleshooting & Servicing
Technical Manual P/N 9894.00.G6 7-19
7.5.2.6 Three-Phase Inverter Board Register
The 3-Phase Inverter board status is kept into E
2
memory and displayed in the service mode’s
Hardware register (Figure 7.9). The register is updated by the generator at power up (Table 81) or
when Prep switch is pressed (Table 82), or by the service representative himself when an
intervention is done on any Inverter or Inverter Dummy board.
•
OK : The slot contains a 3-Phase Inverter board in good operational working condition.
•
DUMMY : The slot contains a Dummy board in good operational working condition.
•
FUSE : The slot contains an Inverter board with a blown fuse. It is possible that the board is
not used by the generator and therefore the total power could be reduced. See “Power
Reduced” message, in Section 7.4.2.
•
BAD : The slot contains a damaged 3-Phase Inverter board that should be replaced for
optimum power operation of the generator.
•
STOP : This status is attributed by the generator only. The normal operation won’t be allowed
as the slot contains a conflicting status. An “Inverter Problem” message is displayed on
the console at power up. The status must be corrected by the service representative.
Figure 7.9 – In Service Mode, select System Setup, Monitor (Figure 7.4), Hardware and Inverters
to invoke the Inverters register screen. The status of the 3-Phase inverter boards can be changed
using the selection keys
1 thru 6 corresponding to the Inverter board positions in the generator.
To replace a 3-Phase Inverter board or change a blown fuse, refer to the board
or fuse replacement procedure given in Section 7.6.1 or 7.6.4.2 respectively.
Do
not try to replace a board or a fuse without reading and understanding that procedure.
I- Inverter Board Status Register Updating
To update the 3-Phase Inverter Board register, the technician indicates which inverter slots have
been filled with inverter boards and/or dummy boards, etc. The EEPROM status for each of the
slots indicated by the technician is updated to the correct value when the
Save key is pressed.
Whenever the Inverter boards status is modified using the Save key, the generator does a re-
initialization process to validate the information.
Hint: The Inverter Board Status Register can also be reset using Epsilon PC Tools (Section 7.5.3.1).