User manual

UNO-PS/1AC/12DC/55W
105550_en_00 PHOENIX CONTACT 17
10 Operating the power supply unit
10.1 Function monitoring
DC OK LED
The DC OK LED is available for visual function monitoring of
the power supply unit.
 Status 1 Status 2
DC OK LED Lit OFF
Meaning Output voltage > 10.5 V Output voltage < 10.5 V, overload mode or no mains
voltage
State description The device is operating, output voltage and
output current are OK
The device is in operation, but there is a fault on the side
of the consumer; the current consumption is greater
than IN or the output is short-circuited.
The device is out of operation because there is no mains
voltage, the fuse on the primary side has been triggered,
or the device is faulty.
Remedy  Remove the error at the load, use a more powerful
power supply unit, connect a power supply unit of the
same type parallel to the existing device, remove the
short circuit, apply mains voltage, enable the fuse again
or replace the power supply unit.