Troubleshooting
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35
19_1272E.DOC / 2001-04-02 / Rev. C / ko.
Cause:
a. Interruption of 24 V supply of console.
b. Interruption or accidental ground in the line between console electronics and central unit.
c. Transmitter/receiver module is defective.
Remedy:
a. Check for 24 V at terminal X1 of console electronics.
b. Check the connection between console electronics and central unit. If an accidental ground is de-
tected, the transmitter module in the console electronics might be damaged, therefore exchange the
console electronics.
c. Exchange console electronics or SLI main board resp.
Error Code E92
Error:
Error in the data transmission from console to central unit
Cause:
a. Loose connection in the line between console electronics and central unit.
b. Transmitter/receiver module is defective.
Remedy:
a. Check the connection between console electronics and central unit.
b. Exchange console electronics or SLI main board resp.
Error Code E93
Error:
Error in the data transmission from central unit to console
Cause:
a. Loose connection in the line between central unit and console.
b. Transmitter/receiver module is defective.
Remedy:
a. Check the line to the console.
b. Exchange console electronics or SLI main board resp.
Error Code E94
Error:
No data transmission from central unit to console
Cause:
a .Interruption or accidental ground in the line between central unit and console.
b. 5 V supply of the computer in the central unit is missing.
c. 5 V supply voltage is too low.
d. Transmitter/receiver module is defective.
e. Data PROM is defective.
f. Computer module is defective.
g. Electromagnetic interferences (e.g. when switching contactors or valves).
Remedy:
a. Check the line to the console (in case of accidental ground, also exchange console electronics).
b. Check the connection to the power supply.
c. Exchange the power supply module.
d. Exchange the console electronics or SLI main board resp.
e. Check data PROM.
f. Exchange SLI main board.
g. Eliminate the source of interference by inverse diodes or varistors.
