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Note: As a reminder, faults (and disablements) are indicated by a 2-sec. beep when an
open FDCIE door is being closed.
17.1
Fault Messages
The section follows a list of all possible fault messages, in alphabetical order. There is
also an explanation to each fault.
Checksum fault in downloaded data.
Control unit will now restart
A fault in the downloaded Site Specific Data (SSD). After restart a new
fault will be generated:
FAULT: Site Specific Data (SSD), Control Unit xx.
A new SSD download will probably correct the problem.
FAULT: 24V for Display Unit (Fxx), CU xx
xx = Fuse number(18 or 19), xx = 00-29.
Check fuse F18 or F19 on the main board in control unit no. xx.
Fuse: T1.6AH 250V.
Note: These 24V outputs, together with the 24V output for routing
equipment, are also protected by an auto-reset- table fuse PTC2 (max
3.15A). If this fault message occurs and the fuse is not blown, check the
24V outputs for combined overload.
FAULT: 24V for expansion board (Auto-resettable), CU xx
xx = 00-29.
The auto-resettable fuses PTC4 and PTC12 (total max 1A) has been
activated. Check for overload on the expansion board's outputs.
To reset the PTC, remove the load and wait 5 min to let the PTC cool
down before re-connecting the load..
FAULT: 24V for external equipment output x,
Control Unit xx
x = Power supply output 1-4 (J3:5-12). xx = 00-29.
Check fuse F9, F10, F11 and F12 respectively on the Main board 5010
in Control Unit no. xx. Fuse: T4A L 250V (TR5).
FAULT: 24V for external equipment output 1 (F9), CU xx
xx = 00-29.
Check fuse F9 on the main board in control unit no. xx.
Fuse: T1.6AH 250V.
Note: This 24V output, together with the other 24V outputs for external
equipment (2-4), are also protected by an auto-resettable fuse PTC1
(max 3.15A). If this fault message occurs and the fuse is not blown,
check all the 24V outputs for combined overload.
FAULT: 24V for external equipment output 2,3,4 (F10), CU xx
xx = 00-29.
Check fuse F10 on the main board in control unit no. xx.
Fuse: T3.15AH 250V.
Note: These 24V outputs, together with the other 24V output for external
equipment (1), are also protected by an auto-resettable fuse PTC1 (max
3.15A). If this fault message occurs and the fuse is not blown, check all
the 24V outputs for combined overload.
FAULT: 24V for MMI (auto-resettable), CU xx
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Operation Manual
FT1020G3 Rev 2.10.4
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