Chapter 2
Installation and Configuration
©
National Instruments Corporation
2-5
NI PS-16 Power Supply User Manual
Operating the NI PS-16
This section provides general information on the operation of the NI PS-16
power supply.
Serial Operation
The NI PS-16 can operate in series to increase the output voltage.
Figure 2-3 shows the NI PS-16 in a serial configuration.
Figure 2-3.
NI PS-16 in Serial Operation
Before operating the NI PS-16 in a serial configuration, consider the
following:
•
It is possible to connect as many units in series as needed, providing
the sum of the output voltage does not exceed 150 V
DC
.
•
Voltages with a potential above 60 V
DC
are not SELV-compliant any
more and can be dangerous. Such voltages must be installed with a
protection against touching.
•
Use power supplies of the same type for serial operation.
•
Earthing of the output is required when the sum of the output voltage
is above 60 V
DC
.
•
Keep an installation clearance of 15mm (left/right) between two power
supplies and avoid installing the power supplies on top of each other.
Caution
Avoid return voltage (for example, from a decelerating motor or battery) which is
applied to the output terminals.
Earth
Unit A
AC
DC
Unit B
AC
DC
–
+
–
+
Load
+
–
