Trouble-Shooting; Control Device - Bosch CRS 845H Instandsetzungsanleitung

en 46 | CRS 845H | Trouble-shooting
5.

Trouble-shooting

5.1

Control device

!
Heed the handling instructions relating to ESD when
working on open devices. These instructions can be
found in EDIS under "Bosch Test Equipment >> Test
systems AZ >> General information >> Safety".
The trigger PCB A10 is accommodated in the housing of
the control device.
V14 V11
LP472
A10
X14 X9 X7
Light-emitting diodes (LEDs) located on the trigger PCB A10 indicate the status of the test system, provided that
the EPS is switched on at the master switch.
If there is no fault in the test system, the LEDs on the trigger PCB must light as follows with the splash guard
doors closed:
V11 V14 V19 V21 V24
Symbol Key
LED on
LED off
LED flashing
LED lights dimly
LED lights for 1 second
(1 sec.)
|
1 689 975 229 2011-09-16
X4 X2 X1
V27 V26
V24
V19
K1
K4
K2
V23
K3
V22
V21
F3 F2 F1
X4
X10 X12
X3
458857-07_Pal
V26 V27 Cause
No faults occurred.
All splash guard doors closed.
F1 Fuse (8 A, slow-blow)
F2 Fuse (8 A, slow-blow)
F3 Fuse (1 A, medium time lag)
V11 180 / 250 MPa rail differentiation
(180 MPa = off, 250 MPa = on)
V14 Validity of rail configuration
V19 12 V power supply on/off for relay K1
V21 24 V power supply on/off for relay K2
V22 12/24 V switching for relay K3
(PWM channel 2 for DRV, DMV, ZME)
V23 12/24 V switching for relay K4
(PWM channel 3 for EAV, DMV2)
V24 Microcontroller indicator
V26 Regulated 12 V supply
V27 Regulated 5 V supply
X1 Communication connector LP 472
X2 Connector for pressure sensor B9
X4 Connector (LP 472) for memory module detection
and temperature sensor
X3 Serial interface
X4 Connector for power supply (12/24 V)
X7 Connector for door monitoring (X3)
X9 Connector for pump-specific connecting cable
X10 Communication connector LP 472
X12 Connector for pressure sensor B10
X14 Connector for door monitoring (X4)
Robert Bosch GmbH