53
Advanced Operating Functions
53
Advanced Operating Functions
established via plug-in terminal block connector which will
be connected with the external source. A voltage signal
(U+ / U-) is used in this example..
Select a voltage of 5 V at the external source. Set the volt-
age value for CH1 to 1 Volt. If you activate the Analog In
function for CH1 via channel short menu or ADV menu (In
An display) below the channel, the voltage value for CH1
will be set to 50% of the previously selected voltage value.
In this example, it would correspond to 500 mV. If you
increase the voltage for the external source to a maximum
of 10 V, the voltage value for CH1 will be set to 100% of the
previously selected voltage value. In this example, it would
correspond to 1 Volt. Accordingly, the output voltage for
CH1 is controlled by means of a current signal. This pro-
cedure requires the connectors I+ / I-. If you increase the
current value for the external source to 20 mA, the voltage
value for CH1 will be set to 100% of the previously se-
lected voltage value. In this example, it would correspond
to 1 Volt.
6.3 Sequencing
The R&S®HMC804x power supply includes a sequencing
function that can be adjusted via a menu. Sequencing ena-
bles the user to automatically connect available channels
consecutively with adjustable time offsets when an output
is switched on (MASTER ON/OFF). It is also possible for
all channels to be simultaneously switched on or off. The
time offset between each channel can be adjusted via
soft menu key DELAY from 1ms to 10 s. The sequencing
function will be activated and deactivated individually for
each channel. Additionally, the sequencing function can
be activated by means of a manual trigger. The following
sequencing start options are available:
❙
Starting sequencing with MASTER ON:
Select the corresponding channels in the Sequencing
menu (ACT.CH1, ACT.CH2, ACT.CH3), activate the
sequencing via soft menu key ACTIVATE and then
activate the channels via channel key CH1 ON/OFF, CH2
ON/OFF or CH3 ON/OFF (LED is illuminated). Press the
MASTER ON/OFF key to start the selected sequence.
Fig. 6.4: Analog In example
Analog IN and the external trigger function may not be used
simultaneously (same socket at the back panel of the instrument).
❙
Starting sequencing via channel key:
Select the corresponding channels in the Sequencing
menu (ACT.CH1, ACT.CH2, ACT.CH3), activate the
sequencing via soft menu key ACTIVATE and then
deactivate the channels via channel key CH1 ON/OFF,
CH2 ON/OFF or CH3 ON/OFF. To start the selected
sequence when the MASTER ON/OFF key is activated
(LED is illuminated), press the channel key of one of the
channels included in the sequencing (CH1 ON/OFF, CH2
ON/OFF or CH3 ON/OFF).
❙
Starting sequencing via trigger:
Select the corresponding channels in the Sequencing
menu (ACT.CH1, ACT.CH2, ACT.CH3), activate the
sequencing via soft menu key ACTIVATE, then deactivate
the channels via channel key CH1 ON/OFF, CH2 ON/OFF
or CH3 ON/OFF, and activate the trigger via soft menu
key TRIGGERED (ON). To start the selected sequence
when the MASTER ON/OFF key is activated (LED is
illuminated), press the blinking TRIG key or the channel
key CH1 ON/OFF, CH2 ON/OFF or CH3 ON/OFF.
The squencing will be activated by pushing the channel key CH1
ON/OFF, CH2 ON/OFF resp. CH3 ON/OFF, if the channel is within
the definded sequence and is activated in the
sequencing menu.
Delay in sec
10
5
0
CH1
CH2
CH3
MASTER
ON
Delay time CH1-CH3
Delay time CH1-CH2
Fig. 6.5: Example for Sequencing
Fig. 6.6: Delay between CH1 and CH2
Sequencing can not be used with the arbitrary function simulta-
neously.
Содержание HMC804
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