Moeller MV4 Series - 10 Function and Control Leds

Device Description MV4-570-TA1/2, MV4-590-TA1/2 2-17
Moeller 07/01 AWB-C2700-1347GB
10 Function and control LEDs
The device features 3 LEDs for the function control of the touch controller (TOUCH) and one LED for
monitoring the system voltages (SUPPLY). These are arranged underneath the system slot 1.
TOUCH
DEF/DIRTY
The LED is activated if during the power up function test of the Touch Screen the
signal level of one or several IR channels goes below the minimum value
(see Section 9.2). A reduced signal level is caused by the contamination of the IR
transparent plastic frame or the failure of an optical element.
If this LED is lit, clean the plastic frame at the front of the device
(see Section 9.3).
COM
ERROR
This LED is lit if there are any communication problems between the touch
controller and the system electronics. If the LED is lit intermittently or
continuously, this indicates a system fault. During normal operation this LED is
off.
INIT/COM
The LED stays dark when the power supply is switched on. It becomes active
when the initialisation of the touch controller has been successfully completed by
the system electronics.
Pressing the Touch Screen will deactivate the LED for about 0.3 seconds.
POWER
SUPPLY OK
When lit, this LED indicates that the system voltages (+12 V and +5 V) are
present.
If the LED is not lit, although the supply voltage has been switched on, check the
fuse.
When the supply voltage is switched on, all 3 Touch Screen monitoring LEDs are activated for 0.3 seconds
for a functional check.
SUPPLY
TOUCHPOWER
OK
INIT /
COM
COM
ERROR
DEF /
DIRTY
SYSTEM PORT
SYSTEM SLOT 1
Section of the device connector panel, showing the control LEDs, the SYSTEM PORT and the SYSTEM SLOT 1 with blind plate
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