Err
or code
Diagnostic code
Meaning for the LMV37.4... system
Remedy
16
Differ
ent positions r
eached
Can be caused b
y differ
ent standar
dized speeds (e.g. after r
estor
e of data set)
when the VSD is activated
standar
dize again and check adjustment of the
air-fuel r
atio contr
ol system
76
#
Internal err
or air-fuel r
atio contr
ol
Make a r
eset; if err
or occurs r
epeatedly
, r
eplace the unit
80
#
Contr
ol r
ange limitation of VSD
Basic unit could not corr
ect the differ
ence in speed and r
eached a contr
ol r
ange
limit.
1.
Basic unit is not standar
dized for this motor
r
epeat standar
dization.
!
Caution!
Settings of air-fuel r
atio contr
ol must be checked!
2.
Ramp time settings of the VSD ar
e not shorter than those of the basic unit
(par
ameters 522, 523) or the setting for the modulating oper
ating r
amp is
incorr
ect (par
ameter 544)
3.
Char
acteristic of the VSD is not linear
. Configur
ation of the voltage input at the
VSD must accor
d with that of the basic unit (par
ameter 645).
4.
VSD does not follo
w quickly enough the changes of the basic unit. Check
settings of the VSD (input filter
, slippage compensation, hiding differ
ent speeds
1
Contr
ol r
ange limitation at the bottom
VSD speed was too high
2
Contr
ol r
ange limitation at the top
VSD speed was too lo
w
81
1
Interrupt limitation speed input
Too much electr
omagnetic interfer
ence on the sensor line
impr
o
ve EMC
82
#
Err
or during VSD’
s speed standar
dization
1
Timeout of standar
dization (VSD r
amp do
wn time too long)
Timeout at the end of standar
dization during
ramp do
wn of the VSD
r
amp
time settings of the VSD ar
e not shorter than those of the basic unit (par
ameter:
523)
2
Stor
age of standar
dized speed not successful
Err
or during stor
age of the standar
dized speed
lock the basic unit, then r
eset it and r
epeat the standar
dization
3
Line interruption speed sensor
Basic unit r
eceives no pulses fr
om the speed sensor:
1. Motor does not turn.
2. Speed sensor is not connected.
3.
Speed sensor is not activated b
y the sensor disk (check distance)
Summary of Contents for STG 146i/2
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