Asterion DC Multioutput ASA Series Operational Manual
M330516-01
5-6
Where FSC k
Ω is Full Scale current programming resistance from the front panel
reference source configuration screen or from the SCPI Command,
SOUR1:VOLT:PROG:FSC <value>
If multiple switches or relays are used to select resistors to program different current
levels, make-before-break contacts are recommended.
Figure 5-6: Remote Current Programming Using Resistance
Example:
program the output current to 80% of rated output current value using 8
kΩ
resistance.
•
Navigate to Current Ref Mode menu,
•
Select Channel and set EXT; refer Figure 5-2.
•
Navigate to Configure Reference Source menu,
•
Select Channel and set reference source as Resistive; refer Figure 5-3.
•
Navigate to Configure Full Scale Value menu,
•
Select Channel and Set Full scale value for Current into 10
kΩ (100% of FSC);
refer Figure 5-4.
•
Connect an 8
kΩ (80% of FSC) resistance across the respective channel analog
programming connector between IPRG_ISOUR and PRG_RTN terminal; refer
•
Verify the output current from the measurement screen for respective channel;
refer Figure 5-5.
5.3.2
Remote Current Programming by Voltage Source
Programs the output current of the supply by external voltage reference source. Refer
Section 3.4.9.3 to configure the power supply to program output current by external
reference source using front panel screen or refer programming manual P\N:
M330517-01.
Power supply configurations to program output current by voltage source:
1. Set the Current Reference Mode as external (EXT) from the front panel current
ref mode screen for selected channel; refer Figure 5-2, this allows the supply
output current to be programed form external source for selected channel.