GE MPS 50 Error 13

Dear friend:

E13:
No kVp during exposure, kVp out of tolerance (±33%) or insufficient time parameters during AEC operation.
For Capacitor Assisted Generators, this can also be due to an incorrect Generator configuration.

DESCRIPTION : No kVp during exposure, kVp out of tolerance (±33%) or insufficient time parameters during AEC
operation. For Capacitor Assisted Generators, this can also be due to an incorrect Generator
configuration.
ERROR TYPE : Informative. May abort exposition.
APPLICABLE TO : All Generators
APPEARS WHEN : During and after exposures.
INFORMATION / SYMPTOM : No kVp during exposure.
POSSIBLE CAUSES
This error assumes that the fault is not on the IGBT and is not due to arcing in the
X-ray Tube.
Faulty HT Controller Connection between the ATP Console CPU Board and HT
Controller Board (--EXP signal)
Connection between HT Controller
and IPM Driver Boards
Connection on the IPM Driver Boards
Faulty IPM Driver Board Open Serial Capacitor (5C9)
5V OUT during exposure Faulty HV Transformer
115 VAC Faulty IGBT
For Capacitor AssistedGenerators, this may also indicate an incorrectGenerator configuration with respect to the Power Line.
ACTIONS
Ensure that Dipswitches SW3 on the ATP Console CPU Board (A3024-xx) are all
set to the OFF position for software versions V3 and up.
For Capacitor Assisted Generators, ensure that Extended Memories E67, E68 &
E69 as well as all Jumpers on the Capacitor Charger Board (A3517-xx) are set
correctly according to the Power Line.
1. With an Oscilloscope, measure between TP-12 & TP-11 on the HT Controller. These signals should be
incomplete and/or irregular.
2. Assure that the power supply to the HT Controller Board and the two IPM Drivers are correct.
HT Controller: Schematic A3000-xx -- Check for 5V, --12VAC and +12VAC.
IPMDriver: Schematic A3063-xx -- Check for 115 VAC ±10 %(supplied fromthe Interface Control Board)
and 5V. 5V should be constant (not presenting any variation), including during the entire Exposure.
3. Measure the pulses at P3-1 (KV DR1) and P3-2 (KV DR2) on the HT Controller. If these pulses are not
present, change the HT Controller. If they are present, proceed to the next step.
The following procedures involve the IPM Driver Boards which are connected
to the IGBTs. This area has dangerous HIGH VOLTAGE and must be treated
with great care.
Note .
Note .
HF Series Generators
Troubleshooting
TR-1005R5 63
4. Ensure that KV DR1 and KV DR2 reach the IPM Drivers at J1-1 & J1-2. If these signals are not present
at the connection points, revise the connection or cables. If these signals are present, proceed to the next
step.
5. Turn OFF the equipment disconnect J2 from one of the IPM Drivers and then measure the resistance
between J2-1 & J2-2. This reading should be approximately 175 Ω. Replace the IPM Driver board if
necessary. Repeat this step for the other IPM Driver board. If both boards present a correct resistance,
proceed to the next step.
6. Dismount an IPMDriver leaving J1 & J2 connected. Turn ON the equipment and ensure the power supply
by measuring at J3/J5-1 (+15 V OUTPUT 1) & J3/J5-4 (GND 1). Turn OFF the equipment and dismount
the second IPMDriver. TurnON the equipment and repeat the test at J4/J6-1 (+15 V OUTPUT2) &J4/J6-4
(GND 2). Repair or replace if necessary. If +15 V OUTPUT is present, return the IPM Drivers to their
original position and proceed to the next step.
7. If a digitalmenter to test Capacitors is available, check Capacitor 5C9. If the Capacitor functions correctly,
proceed to the next step.
If this digitalmeter is unavailable or the Capacitor does not charge, short-circuit the terminals of the
Capacitor and make an exposure with mA and kV parameters as low as possible (ex: 10 kV & 40 ms). If
Error 13 does not appear during the exposure, replace Capacitor 5C9. If the Error persists, proceed to the
next step.
8. Refer to Schematic 543020xx for the connections between the HV Transformer and the IGBTs. Measure
the resistance (continuity) of the following cables from the IGBTs to the HV Transformer, replacing or
repairing where necessary:
Capacitor 5C9 (Transformer side terminal) and P1 of the HV Transformer
C2E1 and P2
9. Disconnect P1 & P2 on the HV Transformer. Check that the resistance at P1 & P2 is low (approximately
0.2 Ω). If the resistance is too high, replace the HV Transformer. If the resistance is correct, proceed to the
next step.
10. Turn OFF the equipment and wait a few moments for the equipment to fully discharge. On theHT
ControllerBoard, place SW2-2 toON. DisconnectA2(B) +24VPSU (FastonTerminal) at the 6K5 contactor
(some are simply marked as K5).
11. Turn ON the equipment and verify that 6K5 does not activate and that there is NO TENSION on the DC
Bus (± 300 VDC), Charge / Discharge Screws or Capacitor Bars.
The following action requires the Inverter Module (L2), to which the
Charge/Discharge Boards are mounted, to be dismounted in order to gain access
to the IPM Driver Boards. Do not disconnect the Charge/Discharge Boards.
12. With anOscilloscope at one of the IPMDriver boards,measure pulses between J3/J5-4 (GND 1) &J3/J5-3
(CP1 KVDR1). Repeat the test with the other board at J4/J6-4 (GND 2) & J4/J6-3 (CP1 KVDR2).Change
the IPM Driver if the pulses are not present.


Best Regards.

Dear Team:

I have the error E9 in GE generator MPS 50 RAD , can you help me please, also when I tried to do the calibration 200MA,2,5MAs,80KV only I get 1,85 MAS in the MASmeter and I have the value 601 in the digital value after these value show me the E9 like error.