Siemens BTC-BR Manual Página 237

  • Descarregar
  • Adicionar aos meus manuais
  • Imprimir
  • Página
    / 264
  • Índice
  • MARCADORES
  • Avaliado. / 5. Com base em avaliações de clientes
Vista de página 236
Technical Product Manual
Fault analysis and repairs 1318
7 Wiring diagrams, fault analysis
TU00-1318-0200302 © Siemens VDO Trading GmbH Section 7 7–9
Section 7: Wiring diagrams, fault analysis • Edition 12/2005
Error Component 1 Component 2
Component 1 voltage check Troubleshooting Resistance check Component 2 Troubleshooting
Measurin
g point
colour
Conductor
no. ()
12 V unit 24 V unit
Component 1 Visual check Component 2 Component 2n= 0 rev/
min
n= 2000 rev/
min
n= 0 rev/
min
n= 2000 rev/
min
Faulty RPM
display
H
v board
F / F1
n board
Flat cable from H v
board to F n board
Flat cable
118 ... 25
26 ... 41
see component 2
Measuring value between v board and n board: 0 Ω Faulty measuring value.
Replace flat cable, check socket connector
contacts on v and n boards.
F / F1
n board
B
DC motor
RPM
Flat cable
r 5 +
bk 4 +
((9))
((7))
0 V3.4 ...4.2 V0 V3.4 ...4.2 V
Measuring value between points 4 and 5 (flat cable):
50 Ω ((7)) ((9))
From 05.97: 30 Ω
Faulty measuring value.
Unsolder r and bk wires from lamp plate A and
repeat resistance measurement.
C
Potentiometer
Resistor unit
RPM
Flat cable
p 1 + ((1))
5.4 V
5 V ..... 5.8 V
EMC/ASIC µP
Remove flat cable from v board.
Measuring value between points 1 and 2 (flat cable): 5 kΩ ((1)) ((3))
Faulty measuring value.
Unsolder p, wt and wtr wires from lamp plate
and repeat resistance measurement.
wtr 3 + ((5))
5.3 V 4.6 V 5.5 V
4.8 V / 4 V
EMC
Measuring value between ((3)) and ((5)) wires: 600 Ω ... 5 kΩ.
The resistance value must increase and decrease steadily when adjusting the RPM
stylus lever slowly.
wt 2 + ((3)) 3.8 V 4.1 V / 2.8 V EMC
Flat cable from H v
board to A lamp
plate
Flat cable
1 ... 16 see component 2
Measuring value between v board and lamp plate: 0 Ω Faulty measuring value. Replace flat cable.
(Socket connector)
F / F1
n board
G
Coding switch see component 2
Measuring device negative pole at point 52 (underside of n board).
Measuring value between points 42 and 52 if switch set to "ON": 0 Ω
Measuring value if switch set to "OFF": >1.5 Ω.
Faulty measuring value. Replace n board.
H
v board
E
n test socket
bl 17 Measuring value between test socket and v board: 0 Ω. Faulty measuring value. Replace cable.
External
n warning contact
defective
H
v board
D
n warning contact
Flat cable
7 + ((13))
0 V 12 V 0 V 24 V
Faulty measuring value.
Unsolder ye wire from lamp plate.
Measuring value on ye wire and point 7 ((13))
:
not switched: :Ω
switched: 0 Ω
to connector output C8
0 V 12 V 0 V 24 V
ye 6 + ((11))
12 V 24 V
Apply a 0 V potential to A6 tab connector for the measuring device.
+ = Connect measuring device's positive cable. Measuring tolerance: ± 10 %
Measuring device: Multimeter –accuracy class 1.5 (>30.000 Ω /V)
= Visually check mechanical parts. = If defective, replace component 1 part. = If defective, replace component 2 part.
=
Visually check electrical cables, components, soldered connections,
conductors and plug contacts.
= Measure ohmic resistance. (( )) Conductor no., 16-pin flat cable
=
Check gear engagement and that the gears from the DC motor to the
potentiometer are running freely.
= Remove flat cable.
= If defective, check, adjust or replace the relevant component. = Remove unit.
Vista de página 236
1 2 ... 232 233 234 235 236 237 238 239 240 241 242 ... 263 264

Comentários a estes Manuais

Sem comentários