Engcon DC2 QSC - 8.1. QPM Alarm List and Actions

8 Troubleshooting
8.1. Alarm list QSC-panel (QPM)
Symbol
Indication
Description
Action
Constant light
Machine limitation active
Confirmation 1: Confirm by
pressing the button. Confirmation
is only possible when no
configured quick hitch lock
indicates an incorrectly
connected lock.
Confirmation 2: Confirm
temporarily by holding in the
button to enable machine
movement when lock incorrectly
connected.
Extinguished
No active machine limitation
Fast
Flashes 10 times
per second
(10 Hz)
Excess current on limiting valve
1 or 2 (has priority over an
open load). More than 3500 mA
passes to the activated limiting
valve. The output will be turned
off.
Automatic if less than 3500
mA passes through the
affected limiting valve when it is
reactivated.
Slow
Flashes 1 time per
second
(1 Hz)
Open load on limiting valve 1
or 2. Less than 200 mA passes
through the activated limiting
valve.
Automatic when more than 200
mA passes through the affected
limiting valve when it is activated.
Button not pressed
Steady light
Once ground pressure is
configured and required. Before
lock can be opened.
Confirmation 1: Take ground
pressure by moving the quick
hitch lock to the ground.
Confirmation 2: Force ground
pressure by holding the button for
10 seconds.
Button not pressed
Extinguished
No significance.
Button not pressed
Slow
Flashes 10 times
per second (10 Hz)
Activated 1: Pressure sensor
process error. One of the quick
coupler locks has been activated
and deactivated without the
ground pressure sensor losing
the ground pressure signal.
Activated 2: The ground pressure
sensor indicates ground pressure
at start-up.
Raises the quick hitch lock off the
ground.
Cause: The fault may be caused
by an incorrect ground pressure
sensor setting.
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