Resistive Programming Of Output Voltage And Current Limit - Delta D750 User Manual

User Manual
D750
DC Power Supply
SW1-3 setting
UP
DOWN

4.1.5 Resistive Programming Of Output Voltage And Current Limit

For resistive programming, internal current sources, for output voltage and/or output current
control, supply 1mAcurrent through external programming resistors connected between
J1-9 & 22 and J1-10 & 23. The voltage across the programming resistors is used as a
programming voltage for the power supply. Resistance of 0~5Kohm or 0~10Kohm can be
selected to program the output voltage and current limit from zero to full scale. A variable
resistor can control the output over its entire range, or a combination of variable resistor
and series/parallel resistors can control the output over restricted portion of its range.
Perform the following procedure to set the power supply to Resistive programming:
1. Turn the AC On/Off switch to Off.
2. Set setup switch SW1-1 to its UP position for output voltage external programming and
SW1-2 to its UP position for Output Current limit external programming.
3. Set SW1 position 3 to select programming resistor range according to Table 4-4.
4. SW1-7 to its UP position for output voltage resistive programming and SW1-8 to its UP
position for Output Current limit resistive programming.
5. Connect a short between J1-8 and J1-12 (refer to Table 3-4).
6. Connect the programming resistors to the mating plug of J1 as shown in Fig.4-2.
7. Set the programming resistors to the desired resistance and turn the power supply ON.
Adjust the resistors to change the power supply output.
52 │ www.deltaww.com
Table 4-3: SW1-3 setting and programming range
Output Voltage programming
VPGM (J1-9)
0-10V
0-5V
J1 connector, rear panel view
CURRENT LIMIT
PROGRAMMING
- +
12 10 9 8
13
25
23 22
Fig.4-1: Remote voltage programming connection
Current limit programming IPGM
(J1-10)
0-10V
0-5V
OUTPUT VOLTAGE
PROGRAMMING
+ -
1
14