QS40.481 Datasheet, PDF (10/28 Pages) PULS GmbH – SINGLE PHASE INPUT

Q-Series
QS40.481
48V, 20A, SINGLE PHASE INPUT
10. REMOTE CONTROL OF OUTPUT VOLTAGE
The shut-down input can also be used to remotely adjust the output voltage between typically 44Vdc and 54Vdc. All
other functions of shut-down input remain the same.
The control voltage is referenced to the main ground (negative output voltage)
Fig. 10-1 Remote control of the output voltage
Output Voltage
56V
52V
Potentiometer:
54V setting
48V setting
48V
44V
40V
36V
32V
28V
24V
0V
5V
10V
Control Voltage
Fig. 10-2 Applying the control voltage
Control
Voltage
15 Shut-
down
+
16 Input
n.c.
-
Instructions:
1. Set the unit into “Single Use” mode
2. Set the output voltage adjustment (48-54V) to the maximum desired voltage.
3. Apply a control voltage to reduce the output voltage
11. INTERNAL DATA LOGGING
A protected microcontroller inside the power supply acquires and stores operating data during the life of the unit. The
data can be downloaded with a small tool and special software by the PULS service and repair personnel, even when
the unit is defect. The data allows for better troubleshooting. Analysis of what happened before a failure can be
determined much more accurately.
Acquired data:
- Family name of unit (QS40), revision of firmware
- Operational hours
- Expired portion of lifetime (combination of temperature and period of time)
- Maximum ambient temperatures with timestamp (max. 47 values)
- Maximal input voltages with timestamp (max. 47 values) and type of input voltage (AC or DC)
- Failure report (various internal errors)
- Number and timestamp of input overvoltage transients
- Number and timestamp of over-temperature shut-downs
- Number of turn-on sequences
The data will be acquired with a fixed sampling rate unless the peak detectors do trigger due to an abnormal
condition. In such cases, the abnormal condition will be captured. Furthermore, data will be acquired every time
shortly before the unit switches off.
Jul. 2015 / Rev. 1.2 DS-QS40.481-EN
All parameters are specified at 48V, 20A, 230Vac, 25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone [phone] Germany
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