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14.4
Remote input
The power supply is switched on and off using the digital
remote input of the power supply. When switched off, power
transmission is deactivated on the DC output side of the
power supply. The load connected to the DC output terminal
blocks is no longer supplied with energy. The operating
mode where the DC output side is deactivated is called
SLEEP
MODE.
To switch the power supply to SLEEP
MODE, select one of
the external circuit versions below. The external circuit is
wired between signal terminal blocks Rem (remote input)
and SGnd (signal
ground).
Figure 36
External wiring versions, enable
SLEEP
MODE
To switch the power supply back on, select one of the
following external circuits between signal terminal blocks
Rem and SGnd. Power transmission inside the device is
activated again. As usual, the energy for supplying the loads
is available at the DC output terminal blocks.
Figure 37
External wiring versions, disable
SLEEP
MODE
When using a PLC output, select the following external
circuit version to switch the power supply to SLEEP MODE.
Figure 38
External wiring versions with PNP and NPN
output
14.5
LED status indicators
Four LED status indicators are integrated in the front of the
power supply, which indicate the current device state.
The green DC
OK LED indicates the current status of the
output voltage (U
Out
). The DC
OK LED is permanently on as
long as the value of the output voltage U
Out
is
≥
0.9
x
U
Set
. If
the value of the output voltage is <
0.9
x
U
Set
, the green
DC
OK LED flashes.
Depending on the required output power of the connected
load, the three P
Out
LEDs, which indicate the current output
power, light up. Assuming that the provided output power is
>
50%
of the nominal output power, the >
50%
LED lights
up green. If the demanded power continues to increase until
it is above
75%, the >
75%
LED lights up green in addition
to the >
50%
LED. If the required output power is then
greater than the nominal device power, the power supply
operates in boost mode. In boost mode, the >
100%
LED
additionally lights up yellow.
13
14
Rem
SGnd
Out 1
Out 2
Signal
< 15 k
a)
b)
13
14
Rem
SGnd
Out 1
Out 2
Signal
< 40 k
a)
b)
13
14
Rem
SGnd
Out 1
Out 2
Signal
< 1 k
PLC
NPN output
Gnd
PLC
PNP output
Gnd
a)
b)