Chroma 63600 Series, Инструкция по эксплуатации и программированию, Страница: 47 / 258

Installation
2-7
2.6 Application Connection
2.6.1 Load Connections
To satisfy safety requirements, load wires must be heavy enough not to
overheat while carrying the short-circuit output current of the device
connected to the Electronic Load.
To satisfy our higher slew rate load spec requirement and performance,
load wires which have over 2.0
μH inductance must be avoided from the
UUT to our load. We have made the adaptable Load Cables along with
the Load. They are better for application connection being the interface
between UUT and the load.
Input connections are made to the
+
and
−
terminal connectors on the front of each Load
module. The major considerations for input connections are the wire size, length and polarity.
The minimum wire size required to avoid overheating may not be enough to maintain good
regulation. The wires should be large enough to limit the voltage drop to less than 0.5V per
lead. The wires should be as short as possible, and bundled or tied together to minimize
inductance and noise. Connect the wire from the PLUS (
+
) terminal on the module to the
HIGH potential output terminal of the power supply (UUT). Connect the wire from the MINUS
(
−
) terminal on the module to the LOW potential output terminal of the power supply (UUT).
Figure 2-4 illustrates the typical setup of the Load module to the UUT. The connecting way is:
First Put the Y-type terminal wire into Load terminal from the bottom of the load terminal, and
let Y-type terminal touch the metal post of the load terminal tightly. Then, turn the banana
binding socket of the Load terminal for connection by your hands, and finally use a tailor-
made spanner to make the connection tightly. Figure 2-5 shows the Load connection with the
tailor-made spanner.
Each terminal with banana binding socket can easily use the banana
plug to make load connection. It is the other way for load connection. But
normally the banana plug can carry only 20 or 10 Amps at most. Before
you use the banana plugs for connections, you must check the
maximum current rating of the banana plugs and the wire. The
connection with the banana plug isn’t fixed in the banana binding socket
tightly. So, when the output voltage of the power supply (UUT) is equal
to or over 70VDC, to prevent accidental contact with hazardous voltage,
the banana plugging connection can’t be used.
When using Y-type (U-type) terminal to connect the load terminal, do not
overlap 2 (or more) terminals at the same time and the torque cannot
exceed 30kgf-cm when securing it using Chroma terminal fixture.
WARNING
WARNING
WARNING