Sedecal SHF-310 - Page 311

HF Series Generators
T roubleshooting
TR-1005R4
71
ERROR CODE : E54
DESCRIPTION : Insuf ficient DC BUS voltage at high level voltage (480 V AC).
ERROR TYPE : Indicative. System does not allow exposition.
APPLICABLE TO : Generators with DRAC or LV-DRAC
APPEARS WHEN :
INFORMATION / SYMPTOM : E54 is displayed and it is not possible to make Exposures.
POSIBLE CAUSES
Voltage between J2--1 and J2--2, in Control DRAC Board, is low (out of range).
Voltage at TP18 is < 2.48 VDC.
ACTIONS
1. Check VDC in J2-1 and J2-2 in INTERFACE DRAC PCB, it must be higher than 447 VDC.
2. If it is not OK, perform Error 11 checking.
3. If it is OK, check FILT 1, F3 and F4 in INTERFACE DRAC PCB.
4. If it is not OK, replace F3 or F4 or INTERFACE DRAC PCB.
5. If it is OK, Check VDC in J 2-1 and J2-2 in CONTROL DRAC PCB.
6. If it is not OK, replace Cable between J2 in INTERFACE DRAC PCB and J2 CONTROL DRAC
PCB.
ERROR CODE : E55
DESCRIPTION : Excessive DC BUS voltage at 480 or 380 V AC.
ERROR TYPE : Indicative. System does not allow exposition.
APPLICABLE TO : Generators with DRAC or LV-DRAC
APPEARS WHEN :
INFORMATION / SYMPTOM : E55 is displayed and it is not possible to make Exposures.
POSIBLE CAUSES
Voltage between J2--1 and J2--2, in Control DRAC Board, are high (out of range).
Voltage at TP18 is > 4.92 VDC.
ACTIONS
1. Check the input voltage to the Generator at TS2--20, TS2--21 and TS2--22, it must be according
to specifications max. 480 V AC + 10%. If it is not OK, check Input Power Line.
2. If Power Input is OK, check the DC V oltage between J2--1 and J2-2 in CONTROL DRAC PCB,
it should be less than 890 VDC.
3. If Voltage is < 890 VDC replace CONTROL DRAC PCB.
4. If voltage is > 890 VDC, switch OFF and disconnect J2--1 and J2-2 in CONTROL DRAC . Switch
ON and measure voltage in DC BUS +/--.
5. If it is OK, replace CONTROL DRAC.
6. If not OK, check Power Module and FILT1 in INTERFACE DRAC PCB. Replace defective part.
( Power Module or FIL T1 in INTERFACE DRAC PCB).