![Gira 2120 00 Скачать руководство пользователя страница 3](http://html1.mh-extra.com/html/gira/2120-00/2120-00_operating-instructions-manual_2229032003.webp)
Power supply 160 mA, 320 mA, 640 mA, 1280 mA with integrated choke
–
Nominal current can be subdivided to outputs as desired
–
Reset button
–
Short-circuit proof
–
Overvoltage proof
–
No-load proof
–
Suitable for operation in systems with emergency power supply
–
Potential-free signal contact for operating and diagnostic message
–
Two identical power supplies can be connected in parallel (with the versions 160 mA, 320
mA and 640 mA)
4
Operation
Acknowledging the diagnostic message
After detecting a overvoltage or a short circuit the LED and the signal contact signal the event
until the message is acknowledged.
■
Press the Reset button for less than 0.5 seconds.
LED functions and signal contact
LED
Betrieb (2),
green
LED
Überlast (3),
red
LED
Überspan-
nung (4), yel-
low
LED
Reset (7), red
Signal contact
(9)
Normal opera-
tion
on
off
off
off
closed
Reset for
20 seconds
on
off
off
flashes 2.5 Hz closed
Permanent re-
set
on
off
off
flashes
0.25 Hz
closed
Overvoltage
flashes 0.5 Hz off
on (until the
message is
acknow-
ledged)
off
open (until the
message is
acknow-
ledged)
Overload,
short-circuit
flashes 0.5 Hz on (until the
message is
acknow-
ledged)
off
off
open (until the
message is
acknow-
ledged)
Voltage
failed / internal
error
off
off
off
off
open
In normal operation the control of the power supply is not necessary. The button (8) is recessed
and thus prevents that it is inadvertently actuated in operation.
Reset function and Reset button
When resetting a bus segment, the output voltage of the power supply is switched off. At the
same time the bus line is short-circuited so that all connected bus devices are disconnected
from the bus voltage.
Resetting the bus line for 20 seconds
■
Press the Reset button (8) between 2 ... 4 seconds.
The bus line is short-circuited for 20 seconds.
The LED Reset (7) flashes quickly.
After 20 seconds the bus voltage is switched on again and the LED Reset switches off.
3 / 8
82597322
06.05.2019