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About The XPR Power Supply
Rear Panel Connectors and Switch
Release 1.1 21
Figure 1.4 Programming and Monitoring S1 Switch
(Switch is shown in factory default configuration.)
The rear panel at the switch is labeled with OFF at the top and ON at the bottom. Any
of the eight switches on S1 is OFF when it has been flipped up to break contact, ON
when flipped down to close contact.
Table 1.1 shows the functions assigned to each S1 switch. Factory defaults are
underlined.
Table 1.1 Rear Panel S1 Switch Assignments
Resetting the Switches
Before making any changes to the switch settings, either turn off the AC power
switch or disable the power supply output by pushing the front panel OUT ON/OFF
switch to its IN position. This temporarily shuts down the power supply. The front
panel OFF LED turns on. Then use any small, flat-bladed screwdriver to change the
switch settings.
1 Resistive Programming of Output Voltage
2 Resistive Programming of Output Current Limit
3 Selects Output Voltage Programming and Monitor Range select
4 Selects Output Current Limit Programming and Monitor Range select
5 Selects Output Voltage Control: Local or Remote
6 Selects Output Current Control: Local or Remote
7 Selects Remote Interlock Logic
8 Selects Over Temperature Shutdown Reset Mode
Switch Function OFF ON
S1-1 1 mA current source for resistive programming of
output voltage
Voltage source
programming
Resistive programming
(0-5 k, 0-10 k)
S1-2 1 mA current source for resistive programming of
output current limit
Voltage source
programming
Resistive programming
(0-5 k, 0-10 k)
S1-3 Output voltage programming and monitor range
select
0-5 V (0-5 k) 0-10 V
(0-10 k)
S1-4 Output current limit programming and monitor
range select
0-5 V (0-5 k) 0-10 V
(0-10 k)
S1-5 Output voltage control mode select Local Control
Remote Control
S1-6 Output current control mode select Local Control
Remote Control
S1-7 Remote Interlock logic signal select Active High=OFF
Active Low=OFF
S1-8 Over temperature shutdown reset mode select Auto reset
Latch OFF