Kikusui PAD-L III Series, Руководство по эксплуатации

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2-10 Precautions and Preparations for Use PAD-L
Grounding the output terminal (continued)
The procedure for grounding the output terminal is illustrated below.
Fig. 2-9 illustrates a connection of the - (neg.) output terminal to the GND (chassis
ground) terminal. In this case, the - (neg.) output terminal is at grounding potential.
For this reason, cables and loads connected to output terminals (including the sensing
terminal) need to be isolated from the chassis with at least the maximum unit output
voltage. The same applies to cables and devices connected to terminal C and
terminals 0 through 6 on the control terminal board. Note that cables and devices
connected to terminals 7 and 8 need to be isolated with at least twice the maximum
unit output voltage. This is because these terminals are at almost the same potential
as the + (pos.) terminal of the rectification smoothing capacitor.
When the + (pos.) output terminal is connected to the chassis ground terminal, the +
(pos.) output terminal is at grounding potential. As a result, negative (minus) outputs
are made to the chassis. As in the preceding case, cables and loads connected to the
output terminal must be isolated from the chassis with at least the maximum unit
output voltage. Cables and devices connected to terminals C through 6 are at almost
the same potential as the chassis. However, they need to be isolated from the - (neg.)
output terminal with at least the maximum unit output voltage. As mentioned
previously, cables and devices connected to terminals 7 and 8 need to be isolated
with at least twice the maximum unit output voltage.
+
–
+
–
+
+S
–S
–
+
–
10
7
8
6
5
0
9
C
L
N
Ei
PAD-L
GND
GND
Shorting bar
AC
input terminal
Output
terminal
Control
terminals
AC voltage, not used
Almost the same potential
as the + (pos.) terminal on
the rectification smoothing
capacitor
Almost the same
potential as the
+ (pos.) output
terminal
Load
The - (neg.) output terminal is at
grounding potential. The shadowed area
must be isolated from the chassis with at
least the maximum unit output voltage.
Fig. 2-9 Grounding the - (neg.) terminals