Page - 34/36 ADPZP0CC - MHYRIO FLASH CONTROLLER - User Manual
8 CONTROLLER DIAGNOSTIC
8.1 Analysis of alarms displayed on the console
1) EEPROM KO
Fault in the area of memory where the adjustment parameters are stored.
This Alarm inhibits machine operation. If the fault continues when the Key
Switch is re-cycled, replace the logic. If the fault disappears, the previously
stored Parameters will have been replaced by the default parameters.
2) CAN BUS KO
There is a problem related to the CAN-BUS line. The error is signalled if the
MHYRIO FLASH controller does not receive any message from the SICOS
CAN-BUS line. First of all, check the wiring. If it is ok, the problem is on the
logic board, which must be replaced.
3) SHUNT VALVES
There is a short across the valve coil. Replace the hardware.
4) DRIVER OPENED
The high side switch that drives positive to valves (used for safety related
valves) is opened when it should be closed.
5) DRIVER EVP GR1
One of the MOS (or more than one) that drives the valves 1, 2 is shorted.
6) DRIVER EVP GR2
One of the MOS (or more than one) that drives the valves 3, 4 is shorted.
7) DRIVER EVP GR3
One of the MOS (or more than one) that drives the valves 5, 6, 7, 8 is
shorted.
8) DRIVER SHORTED
The high side switch that drives positive to valves (used for safety related
valves) is closed when it should be opened.
To Next Page
Loading...
