Features and Specifications
Rear Panel Connectors and Switch
20
Operating Manual for XFR 1.2kW Series Power Supply
Resetting the Switches
Before making any changes to the switch settings,
disable the power supply output by pushing the front panel STANDBY switch to its
IN position. This temporarily shuts down the power supply. The front panel S/D
LED turns on. Then use any small, flat-bladed screwdriver to change the switch
settings.
Any of the eight switches on SW1 is OFF (OPEN) when it has been flipped up to
break contact, ON (CLOSED) when flipped down to close contact.
Rear Panel J2
Connector
The J2 Programming and Monitoring connector is a 15-terminal wire clamp
connector located on the power supply’s rear panel. See Figure 1.4. The J2 connector
provides access to the following functions:
•
Remote programming of output voltage AND/OR current limit
•
Remote monitoring of calibrated readback signals for output voltage and output
current
•
Remote control of the shutdown function using a 2.5 V to 15 V signal
Figure 1.4
Programming and Monitoring J2 Connector
See Table 1.3, on page 21 for the list of the J2 connector terminal numbers, their
references, and corresponding functions.
1 Remote Output Voltage Programming Select
2 Remote Output Current Limit Programming Select
3 Control Ground
4 N/C
5 Voltage Program Signal Return
6 Output Voltage Programming Input
7 Current Program Signal Return
8 Output Current Limit Programming Input
9 Voltage Monitor Signal Return
10 Output Voltage Monitor
11 Current Monitor Signal Return
12 Output Current Monitor
13 N/C
14 Shutdown (S/D) Signal Return (–)
15 S/D Input (+)
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