Engcon DC2 QSC - Page 69

8 Troubleshooting
Symbol
Number of
flashes
Name
Description
Confirmation
5
QLM Timeout
QLM is selected and
communication with
the QLM module
ceases.
Automatic when
communication with the QLM
module is restored.
6
Tool Lock Short
Circuit
One of the outputs for
the two quick hitch
lock valves is short-
circuited either to earth
or system voltage
when the quick hitch
locks are inactive.
When restarting the system.
7
QPM Timeout
Communication with
QPM ceases.
Automatic when
communication with QPM is
restored.
8
Pressure
activation Valve 1
Over current
The current is more
than 3500 mA through
pressure activating
valve 1 when pressure
activation is active.
The output will be
turned off.
Automatic if less than 2500
mA passes through pressure
activating valve 1 when it is
reactivated.
9
Pressure
activation Valve 2
Over current
The current is more
than 3500 mA through
pressure activating
valve 2 when pressure
activation is active.
The output will be
turned off.
Automatic when less than
2500 mA passes through
pressure activating valve 2
when it is reactivated.
10
Tiltrotator Sensor
supply short
circuit
Supply voltage out
to the tiltrotator
lock sensors is less
than 50% of system
voltage.
Automatic when the supply
voltage to the tiltrotator lock
sensors exceeds 50% of
system voltage.
11
Machine Sensor
supply short
circuit
Supply voltage out
to the tiltrotator
lock sensors is less
than 50% of system
voltage.
Automatic when the supply
voltage to the machine
sensors exceeds 50% of
system voltage.
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