Operation
Remote Monitoring and Status Indicators
52
Operating Manual for XKW 1kW Series Power Supply
Remote Monitoring and Status Indicators
Readback signals for remote monitoring of the output voltage and current are
available at connector J3 on the rear of the unit. A 0-5V (uncalibrated) signal
between pins 19 (positive) and 12 (negative) represents 0-100% of the rated output
voltage. A 0-5V (calibrated) signal between pins 7 (positive) and 12 (negative)
represents 0-100% of the rated output current. The offset and gain of the current
readback signal may be adjusted through holes in the cover of the unit. See
Section 4,
“Calibration”
for location of adjusting holes.
Status indicators for thermal shutdown, OVP operation, remote programming and
operating mode are also available through the J3 connector.
Table 3.2, “Status
Indicators,”
lists the various signals, the J3 connector pins where they are available,
the approximate magnitude of the signal (measured with respect to pin 6 of
connector J3) and the source impedance through which the signal is fed.
Table 3.2
Status Indicators
Note:
To obtain a 0-10V readback signal, you must use an external instrumentation
amplifier with the 0-5V signal.
Indicator Signal
J3 Pin
Signal Voltage
Source Impedance
Thermal Shutdown
18
+10 V
750
Ω
OVP Circuit Activated
17
+9 V
750
Ω
Remote Programming
4
+10 V
750
Ω
Voltage Mode Operation
5
+10 V
750
Ω
Current Mode Operation
5
- 3 V
750
Ω
Содержание XKW 150-7
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