Err
or code
Diagnostic code
Meaning for the LMV37.4... system
Remedy
23
VSD deactivated
Standar
dization was started with VSD deactivated
activate the VSD and r
epeat standar
dization
24
No valid oper
ating mode
Standar
dization was started without valid oper
ating mode
activate valid oper
ating mode and r
epeat standar
dization
25
Pneumatic air-fuel r
atio contr
ol
Standar
dization was started with pneumatic air-fuel r
atio contr
ol
standar
dization with pneumatic air-fuel r
atio contr
ol not possible
128
Running command with no pr
eceding standar
dization
VSD is contr
olled but not standar
dized
make standar
dization
255
No standar
dized speed available
Motor turns but is not standar
dized
make standar
dization
83
#
Speed err
or VSD
Requir
ed speed has not been r
eached
Bit 0
Valency 1
Lo
wer contr
ol r
ange limitation
Speed has not been r
eached because contr
ol r
ange limitation has become active
for measur
es, r
efer to err
or code 80
Bit 1
Valency 2...3
Upper contr
ol r
ange limitation
Speed has not been r
eached because contr
ol r
ange limitation has become active
for measur
es, r
efer to err
or code 80
Bit 2
Valency 4...7
Interrupt shutdo
wn due to electr
omagnetic interfer
ence
Speed has not been r
eached due to too much ele
ctr
omagnetic interfer
ence on
the sensor line
for measur
es, r
efer to err
or code 81
Bit 3
Valency
≥
8
Curve too steep in terms of r
amp speed
Check speed differ
ential between the curvepoints and the modula
ting oper
ating
ramp setting (par
ameter 544).
1.
Modulating oper
ating r
amp 32 seconds
Curve slope max. 10% for LMV37.4 r
amp of 20 seconds (20% for 10 seconds or
40% for 5 seconds)
2.
Modulating oper
ating r
amp 48 seconds
Curve slope max. 10% for LMV37.4 r
amp of 30 seconds (20% for 15 seconds or
30% for 10 seconds)
3. Modulating oper
ating r
amp 64 seconds
Curve slope max. 10% for LMV37.4 r
amp of 40 seconds (20% for 20 seconds or
40% for 10 seconds)
Between the ignition point (P0) and the lo
w-fir
e point (P1), the speed
change in modulating mode may be a maximum of 40%, independ
ent of the
LMV3… r
amp.
2.
The setting of the VSD r
amp must be about 20% faster than the r
amps in the
basic unit (par
ameters 522, 523).
Bit 4
Valency
≥
16
Interruption of speed signal
No speed detected in spite of contr
ol.
1.
Check if the motor turns.
2.
Check if the speed sensor delivers a signal (LED / check distance fr
om the
sensor disk).
3. Check wiring of the VSD
.
Summary of Contents for STG 146i/2
Page 34: ...34 Bentone 6 2 Wiring diagram...
Page 123: ......
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