Komatsu 930E-2 Shop Manual page 186

TABLE V: PROPULSION SYSTEM COMPONENTS DESCRIPTION (Cont.)
REF.
NO.
BATFU 19
BATTSW
BDI 68
BFC 67
BLFP 10
BM1, 2 63
BM1I 65
BM2I 66
CCLR1, 2 20
CCL1, 2
61
CIF11, 12, 13, 14,
40
15, 16
CIF, 21, 22, 23, 24,
41
25, 26
CLSW 59
CMAF 27
CMT 28
CM1, 2 5, 6
CM1A, 1B 45
CM2A, 2B 44
CPR 53
CPRD
CPRS
CPS 56
E2-42
COMPONENT
System Fuse
Battery Disconnect Switch
(System Batteries)
Battery Blocking Diode
Battery Line Filter Capacitor
Battery Line Filter Panel
(17FM311)
Grid Blower Motors 1 and 2
(5GY19)
Current Sensing Module
Current Sensing Module
Capacitor Charge Resistor
Panels 1 and 2
Capacitor Charge Indicating
Lights 1 and 2
Inverter 1 Filter Capacitors
Inverter 2 Filter Capacitors
Cabinet Light Switch
Alternator Field Current Sensing
Module
Alternator Tertiary Current
Sensing Module
Chopper GTO Phase Module 1
and 2 (17FM630)
Current Sensing Modules,
Phase 1A and 1B
Current Sensing Modules,
Phase 2A and 2B
Control Power Relay (17LV66)
Dual Diode Module
Control Power Relay
Suppression Module
Control Power Switch
Electrical Propulsion System Components
FUNCTION
Provides overload protection for control equipment and
the System Batteries.
Connects and disconnects the 12 VDC and 24 VDC
circuit batteries (located at right front corner of truck).
Works in conjunction with BFC and BLFP to maintain
battery voltage to CPU.
Additional capacitance for BLFP to prevent nuisance
CPU resets.
Reduces voltage ripples in System Battery power
supplied to the PSC.
DC motors driving blowers to provide cooling air for the
retarding grids.
Monitors current flowing through grid blower motor #1
Monitors current flowing through grid blower motor #2
Connected across the DC link to provide a voltage
attenuated sample of the DC link voltage to the Capacitor
Charge Indicating lights.
Illuminated when 50 volts or more is present on the DC
link (the DC bus connecting the Alternator output,
Chopper Module/Resistor Grid circuits and traction
Inverters).
Stores the Inverter 1 DC bus voltage to provide
instantaneous power when the PM1 GTO Phase
Modules first turn on.
Stores the Inverter 2 DC bus voltage to provide
instantaneous power when the PM2 GTO Phase
Modules first turn on.
Controls electrical cabinet interior lights.
Detects amount of current flowing through the Alternator
field winding.
Detects amount of current flowing through the Alternator
tertiary winding.
Controls the DC voltage applied to the grids during
retarding.
Detects amount of current flow through the A and B
phases of Traction Motor 1.
Detects amount of current flow through the A and B
phases of Traction Motor 2.
Picks up when the Key Switch and Control Power Switch
are closed.
Allows two separate voltages to control the CPR coil.
Suppresses voltage spike when CPR coil is de-energized.
Energizes CPR coil.
E02014 3/01