Responding to System Alarms
7-22
LigaSure Vessel Sealing Generator Service Manual
226
DOSERR_ECON_RISING
sys_econ > 90% of full scale, V_sns and
I_sns < 10% of full scale.
Turn the power switch off (O) then on again (|).
If the error reappears, calibrate the unit.
If the error reappears, replace the control board.
If the error reappears, replace the HV supply.
If the error reappears, replace the RF board (RF output FET,
transformers, etc.).
227
229
230
DOSERR_EXCESS_DIFFERENCE
Power computed from master and
feedback sensors differs by more than
50 watts.
DOSERR_CURRENT_SATURATION
Master side current sensor is saturated.
DOSERR_VOLTAGE_SATURATION
Master side voltage sensor is saturated.
Turn the power switch off (O) then on again (|).
If the error reappears, calibrate the unit.
If the error reappears, replace the control board.
If the error reappears, replace the RF board (Sensors).
231
DOSERR_DESIRED_VAL
Master computed desired values differ
from feedback computed desired values.
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
232
DOSERR_POWER_EXCEEDED
Power computed on master side is
greater than excess power limit specified
by IEC 60601-2-2 3rd Ed.
Turn the power switch off (O) then on again (|).
If the error reappears, calibrate the unit.
If the error reappears, replace the control board.
If the error reappears, replace the RF board (Sensors).
233
234
CCD_SEAL_DEV_DATA_CORRUPTED
Check cal_seal_dev_data has detected
invalid data in the curr_seal_dev data
stored in dpram.
FB_INVALID_POWER_ACTIVATION_
STATE_VALUE
Feedback detected an illegal value in the
power_activation_state variable.
Turn the power switch off (O) then on again (|).
If the error reappears, replace the control board.
451
Over Temperature Error
Temperature has risen past the
allowable range.
If possible, stop using the unit until it has cooled down.
Turn the power switch off (O) then on again (|).
If the error reappears, replace the high voltage power
supply.
If the error reappears, replace the control board.
Number
Description
Recommended Action
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