Injector Control - Hartridge CRi-PC Operating And Servicing Manual

CRi-PC Operating and Servicing Manual
5.4.4

Injector control

WARNING: THE INJECTOR CONTROL PCB CONTAINS HIGH VOLTAGES.
ONLY QUALIFIED SERVICE PERSONNEL SHOULD ATTEMPT DIAGNOSTICS
Status Indicators
The injector control status indicators on the Status/diagnostic screen (Figure 4.4) give the
following indications:-

Injector PCB Trip

Volts Low

Pulse Too Great

Default Injector Setting
Injector PCB Trip Condition
Two conditions could cause the system to trip:- high current (meaning that the current
delivered is not controlled at the demand value), or extended pulse (meaning that the pulse
has not turned off at the required width).
Switching off the power supply to the system, waiting a few seconds, and then switching back
on should reset the fault. This is achieved by pressing the 'Reset' key in the Injector PCB area
of the Status screen.
If the system still trips switch off the test stand, disconnect the injector cable, then switch back
on. If the system appears to be ok the trip could be caused by a faulty injector coil or piezo.
Try a different injector to establish if it is a test stand fault or a problem with one injector.
Otherwise a fault within the injector control PCB may be suspected.
If you suspect a problem with the injector control PCB, contact your local Hartridge™
distributor.
Other Faults
Check the fuses on the control board. The injector control PCB receives its 22V power supply
from the main transformer. This is protected by a 3.15A anti-surge fuse (FS1) on the PCB
(Figure 5.13).
The injector coil control is powered by various combinations of voltages from the main
transformer, the combination depends on the type of injector being tested. The coil circuit is
protected by a 6.3A anti-surge fuse (FS2) on the PCB (Figure 5.13).
For any more complex problems contact your national Hartridge™ distributor. Please give as
much information as possible on the conditions when the fault occurred, e.g.

The injector type under test

The test speed (injections per minute - IPM)

The solenoid current(s) applied

The pulse width applied
106
THIS IS AN UNCONTROLLED DOCUMENT downloaded by Lukas Matuska on 16 Feb 2016
Any technical intervention requires certified Hartridge training. Contact Hartridge Ltd for details.
SWITCH OFF THE ELECTRICAL SUPPLY TO THE TEST STAND
BEFORE OPENING THE ELECTRICAL CABINET.
WITH POWER APPLIED.
HARTRIDGE LIMITED
HL037 (EN), Issue 13, AT714, 05/14