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13.3 SUPPRESSION DIODES
There are two location where additional voltage surge
suppression diodes have been installed.
One is in the main power box installed on circuit board
terminals and the other is in the display box .
These will be work seamlessly in the background, but should
one fail it will fail closed causing a short circuit. The short is
protected by fuses and are as follows.
1.
Fuse AF4 will blow if suppression diode in the main
power box fails.
2.
Fuse F10 will blow if suppression diode in the
display box fails.
If fuse F10 or AF4 are blowing right away after install simply
remove the associated suppression diode and try again. If
the fuse is good, then replace the suppression diode.
Fuse AF4 is the main power feed for all CAN (J1939) input
devices on the mixer (eg. Belt and cement speed encoders).
If multiple sensors are down check your fuse.
Fuse F10 is the main power feed to the display. The display
will not turn on if this fuse is blown.
INFORMATION
The suppression diodes protect against voltage spikes caused by
alternator load dumps, inductive loads from cooling fans and other
potential high voltage sources. All electronic components such as
sensors, display and plc have this type of protection already. The
addition of the external TVS diodes is simply for precautionary purposes
and as a supplementary device.
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Summary of Contents for P Series
Page 1: ...1 PROALL Mobile Mixer Service Manual P Model MX04703 August 2020 Rev 1 0 ...
Page 20: ...20 has been removed and not replaced then the charge pressure will drop to zero C ...
Page 85: ...International Manufacturing Inc P P1 OUT IN OUT IN 2 1 3 IN S1 S2 2 1 3 OUT IN ...
Page 100: ... ADMIX 1 ADMIX 2 WORK LIGHTS ...
Page 101: ... COOLER 1 VIB1 SPARE VIB1A SPARE VIB2A VIB2 VIB3 VIB4 VIB5 ...
Page 105: ... BATTERY V BATTERY V ...