Responding to System Alarms
Troubleshooting
LigaSure Vessel Sealing Generator Service Manual 7-17
146 FB_FAILED_ATOD_TEST
Feedback processor detected an A/D
error during power up
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
If the error reappears, replace the low voltage power supply.
162
163
FB_ECON_OVFLW
Feedback calculation of starting ECON
overflowed.
MN_MEMORY_CORRUPTED
The error disable variables are equal
when they should be inverse.
mm_errors_enabled ==
curr_settings.errs_disabled
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
164 FB_DOSERR_PWR_OVFLW
FB calculation of power overflowed.
Turn the power switch off (O) then on again (|).
If the error reappears, re-calibrate the unit.
Check sensor lines V_SEN, I_SEN for being too high.
If the error reappears, replace the control board.
If the error reappears, replace the RF board.
165 MN_DOSERR_PWR_OVFLW
MN calculation of power overflowed
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
166 DOSERR_ECON_HV_ERROR
Sys_Econ and HV_SNS do not compare
within limits during keying.
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
If the error reappears, replace the high voltage power supply
board.
167
168
TON_AVG_ERROR
ton_avg reading is too different from
calibrated ton_avg value.
TON_AVG_OFF_ERROR
ton_avg reading when no RF being
output is too different from the average
off value which should be read.
Turn the power switch off (O) then on again (|).
If the error reappears, calibrate the unit.
If the error reappears, replace the control board.
169
170
FB_MEMORY_CORRUPTED
The error disable variables are equal
when they should be inverse.
fb_errors_enabled ==
local_curr_settings.errs_disabled
INVALID_KEY_OUTCOME
A bipolar MACRO or bipolar COAG key
press resulted in a COMPLETE_FAIL
outcome from the feedback processor.
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
Number Description Recommended Action
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