Auxiliary modules
AUXILIARY MODULES
External Auxiliary Power Supplies
4.
Ref.2003
· 165 ·
QC-PDS
HARDWARE
4.6.4 Indicator lights and push-buttons
Status indicator LED's
Associated with the +24 V DC voltage:
Buttons
RESET. Initialization button on the auxiliary power supply. This button
allows the user to return the equipment to the same initial conditions
(reset) after an anomaly from the table above has been noticed.
Other considerations
F. H4/19
QC-APS-15 | QC-APS3-15
. LEDs and push buttons.
Led color Meaning
red red green
D1
ON x x
OVERVOLTAGE
. Over-voltage at the +24 V DC
power supply output. It has exceeded +28 V DC
and interrupts its operation.
D2
ON
xx
OVERCURRENT.
Over-current at the +24 V DC
power supply output. The power supply has
exceeded 15 A and its output voltage is less than
24 V DC.
D3
xx
ON In the presence of +24 V DC. Running ok.
x
. Indifferent
WARNING. The DC BUS discharge period may extend for up to 10 min
after the equipment has been disconnected from the electrical mains. For
this reason, always
ensure that there is no voltage in the DC BUS before
handling the equipment.
WARNING. The auxiliary power supplies carry out the task of supplying the
electrical control circuits and signals to manage the other modules
connected to the DC BUS. Never use these power supplies to power the
brake of a motor. The brake may generate voltage peaks that could
damage the unit.
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