I have a HEMRC issue, the error log messages are down below. I did find not enough oil in the Anode side of the tube well, so I filled it out, tested the HV Cable and it is ok, as well as the 80 Amp fuses, and fuses in the HEMRC.
Performed tests:
DDC test:
1. Static X-Ray off - scan completed
2. Static X-Ray on - scanning system aborted Scanning
Also did the Rotor Control test
ERROR LOG messages:
Host: OBC Proc: Diag Exec Error: 219800
Function: Diagnostics XRAY GENERATION: Tube Rotor Control
The HEMRC AC Driver reported fault code: F0-%s The HEMRC AC Drive reported fault code: F0-%d-%b
Host: OBC Proc: Generator Error: 183316
Function: XRAY GENERATION: Tube Rotor Control
The HEMRC failed to reach the Run speed in the alloted time.
Host: OBC Proc: Generator Error: 185548
Function: XRAY GENERATION: Tube Rotor Control
The HEMRC operating frequency is below the minimum value.
Actual frequency: 81.863 Minimum frequency limit: 130.000
At Frequency signal: Inactive Expected: Inactive Rotor State=Transition
Host: OBC Proc: Generator Error: 185553
Function; XRAY GENERATION: Tube Rotor Control
The HEMRC drive has detected a Line Loss. This occurs when the input power drive falls below 85% of the nominal Bus voltage. Possible causes: Xray tube stator, HEMIT, HEMRC power supply,...
Alarm status: 26H
I suspect on the tube rotor though, I did check the tube well and the anode side of it was missing a little bit of oil, so I put more in there, checked fuses and voltages in the HEMRC board and interface, and were good. The power supply is good as well.
If the tube rotor sound is normal or has been normal, the issue may be a defective anode high voltage tank. Otherwise if the tube rotor is noisey or has been noisy, replace tube regardless.
Check 700 VDC - (innermost 2 rings) this is the high voltage to the HEMRC and the KV.
There are 5 fuses on the HEMRC Interface Board.
F1 & F2 power coming into HEMRC Interface Board
F4 for gantry 24 hour power that feeds transformer T1. This 400 volts is only used during deceleration. However, the voltage is always present when gantry 24 hour power is on. This voltage plus the HVDC 700 volts is sent to the HEMRC ac drive.
When anode is running, only the HVDC 700v is used. This voltage goes into the anode tank and floats on the anode HV.
The HEMRC control board starts the rotor accelerating.
If all is good, then I would suspect the bearings on the anode are bad. Good Luck.
please i have a typical problem what about the solution of it
The HEMRC operating frequency is below the minimum value.
Actual frequency: 81.863 Minimum frequency limit: 130.000 The HEMRC drive has detected a Line Loss. This occurs when the input power drive falls below 85% of the nominal Bus voltage. Possible causes: Xray tube stator, HEMIT, HEMRC power supply,...
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FranciscoG
HEMRC LightSpeed 16
April 13, 2016 06:04
Hi guys,
I have a HEMRC issue, the error log messages are down below. I did find not enough oil in the Anode side of the tube well, so I filled it out, tested the HV Cable and it is ok, as well as the 80 Amp fuses, and fuses in the HEMRC.
Performed tests:
DDC test:
1. Static X-Ray off - scan completed
2. Static X-Ray on - scanning system aborted Scanning
Also did the Rotor Control test
ERROR LOG messages:
Host: OBC Proc: Diag Exec Error: 219800
Function: Diagnostics XRAY GENERATION: Tube Rotor Control
The HEMRC AC Driver reported fault code: F0-%s The HEMRC AC Drive reported fault code: F0-%d-%b
Host: OBC Proc: Generator Error: 183316
Function: XRAY GENERATION: Tube Rotor Control
The HEMRC failed to reach the Run speed in the alloted time.
Host: OBC Proc: Generator Error: 185548
Function: XRAY GENERATION: Tube Rotor Control
The HEMRC operating frequency is below the minimum value.
Actual frequency: 81.863 Minimum frequency limit: 130.000
At Frequency signal: Inactive Expected: Inactive Rotor State=Transition
Host: OBC Proc: Generator Error: 185553
Function; XRAY GENERATION: Tube Rotor Control
The HEMRC drive has detected a Line Loss. This occurs when the input power drive falls below 85% of the nominal Bus voltage. Possible causes: Xray tube stator, HEMIT, HEMRC power supply,...
Alarm status: 26H
I suspect on the tube rotor though, I did check the tube well and the anode side of it was missing a little bit of oil, so I put more in there, checked fuses and voltages in the HEMRC board and interface, and were good. The power supply is good as well.
What do you guys think?
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Syl Harris
re: HEMRC LightSpeed 16
April 15, 2016 07:45
If the tube rotor sound is normal or has been normal, the issue may be a defective anode high voltage tank. Otherwise if the tube rotor is noisey or has been noisy, replace tube regardless.
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Eric Hauk
re: HEMRC LightSpeed 16
April 15, 2016 07:47
Change the Hemrc or the power supply, power supply is easy enough to check first and is a bit cheaper
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RxMedicalSystemsServices
re: HEMRC LightSpeed 16
April 15, 2016 07:48
Yes , your tube is prime suspected here.
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tim cowell
re: HEMRC LightSpeed 16
April 15, 2016 12:38
Check 700 VDC - (innermost 2 rings) this is the high voltage to the HEMRC and the KV.
There are 5 fuses on the HEMRC Interface Board.
F1 & F2 power coming into HEMRC Interface Board
F4 for gantry 24 hour power that feeds transformer T1. This 400 volts is only used during deceleration. However, the voltage is always present when gantry 24 hour power is on. This voltage plus the HVDC 700 volts is sent to the HEMRC ac drive.
When anode is running, only the HVDC 700v is used. This voltage goes into the anode tank and floats on the anode HV.
The HEMRC control board starts the rotor accelerating.
If all is good, then I would suspect the bearings on the anode are bad. Good Luck.
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mo fawzy
re: HEMRC LightSpeed 16
December 04, 2018 09:56
please i have a typical problem what about the solution of it
The HEMRC operating frequency is below the minimum value.
Actual frequency: 81.863 Minimum frequency limit: 130.000 The HEMRC drive has detected a Line Loss. This occurs when the input power drive falls below 85% of the nominal Bus voltage. Possible causes: Xray tube stator, HEMIT, HEMRC power supply,...
to rate and post a comment