VMP-IOMM-2018-2
Fulton Ltd
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TROUBLESHOOTING - 6
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Building Technologies Division Basic documentation LMV26... CC1P7547en
30 Error code list 20.04.2016
Error code Diagnostic code Meaning for the LMV26... system Remedy
Note
Curves cannot be set.
LMV26...: Optional press reset button >3 seconds.
65 # Internal error Make a reset; if error occurs repeatedly, replace the unit
66 # Internal error Make a reset; if error occurs repeatedly, replace the unit
67 # Internal error Make a reset; if error occurs repeatedly, replace the unit
70 #
Internal error fuel-air ratio control: Position calculation
modulating
23 Output invalid
No valid output
26 Curvepoints undefined
Adjust the curvepoints for all actuators
71 # Special position undefined
0 Home position
Parameterize the home position for all actuators used
1 Prepurge position
Parameterize the prepurge position for all actuators used
2 Postpurge position
Parameterize the postpurge position for all actuators used
3 Ignition position
Parameterize the ignition position for all actuators used
72 # Internal error fuel-air ratio control Make a reset; if error occurs repeatedly, replace the unit
73 # Internal error fuel-air ratio control: Position calculation multistep
23 Output invalid
No valid output
26 Curvepoints undefined
Adjust the curvepoints for all actuators
75 # Internal error fuel-air ratio control: Data clocking check
1 Current output different
2 Target output different
4 Target positions different
16 Different positions reached
Can be caused by different standardized speeds (e.g. after restore of data set) when the VSD is
activated
standardize again and check adjustment of the fuel-air ratio control system
76 # Internal error fuel-air ratio control Make a reset; if error occurs repeatedly, replace the unit
80 # Control range limitation of VSD
Basic unit could not correct the difference in speed and reached a control range limit.
1. Basic unit is not standardized for this motor
repeat standardization.
Caution!
Settings of fuel-air ratio control must be checked.
2. Ramp time settings of the VSD are not shorter than those of the basic unit (parameters 522,
523) or the setting for the modulating operating ramp is incorrect (parameter 544)
3. Characteristic of the VSD is not linear. Configuration of the voltage input at the VSD must
accord with that of the basic unit (parameter 645).
4. VSD does not follow quickly enough the changes of the basic unit. Check settings of the
VSD (input filter, slippage compensation, hiding different speeds)
1 Control range limitation at the bottom
VSD speed was too high
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