Kikusui PAN 110-1.5A, Руководство по эксплуатации

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PAN-A 4-17
Chap
.4
Applied Oper
ation
1
■
When you wish to connect the shield to Vext
• If you are connecting the shield to the Vext side when
using external voltage control, do not connect the
shield to the + (pos.) output terminal of the unit.
When using shielded wires, some external voltage sources may
require that the shield be connected to the external voltage source. In
such cases, the grounding method used for the external voltage source
(Vext) and the unit creates a condition where the output is short-cir-
cuited, as shown in Fig.4-12. Thus, do not connect the shield to the +
(pos.) output terminal of the unit.
Fig.4-12 A connection where output is short-circuited
by the shield
• Do not ground the output of the external voltage
source (Vext)
⎯
fl oat it instead. The potential of con-
trol terminals [2] and [3] are nearly the same as that
of the unit's + (pos.) output terminal, and short-circuit
currents are provided to the signal line without a
shield.
CAUTION
+
+
–
+
–
–
3
2
Two-core
shielded wires Vext PAN-A
Output is short-
circuited by
the shield, causing
current to flow.
Ground
the - output
terminal.
WARNING