Kikusui PAD-L III Series, Руководство по эксплуатации

Страница: 39 / 132

PAD-L Precautions and Preparations for Use 2-11
In conclusion, if there is no need to float the output terminals, ensure safety by
connecting either of the output terminals to the chassis ground terminal. Otherwise,
outputs may suffer larger ripples. The PAD-L series's specifications are based on the
assumption that the - (neg.) terminal is connected to the chassis ground terminal.
WARNING
• When grounding the output terminal, make connections securely
using the accompanying shorting bar.
• Even if the output terminal is grounded, it is necessary to isolate
the output terminals (including the sensing terminal) and
terminals C through 8 on the control terminal board with at least
the isolation voltage of the unit.
Incomplete connection of the shorting bar may result in electric
shock and output short-circuits unless full isolation is provided
with at least the isolation voltage of the unit.
If no cable with the rated voltage is available, ensure the
necessary withstand voltage through measures such as installing
a cable in an insulating tube that can withstand the unit isolation
voltage or more.
• When remote-controlling the unit using an external voltage
source (Ei), float Ei outputs instead of grounding them (floating).
As in the example shown in Fig. 2-9, grounding Ei outputs may
lead to output short-circuits.
Table 2-2 Isolation voltage value
Type III
PAD
16-100L
PAD
35-50L
PAD
35-60L
PAD
60-35L
PAD
110-20L
PAD
250-8L
Isolation voltage ±250 V ±250 V ±250 V ±250 V ±250 V ±500 V
Type IV
PAD
35-100L
PAD
60-60L
PAD
110-30L
PAD
250-15L
Isolation voltage ±250 V ±250 V ±250 V ±500 V
Type V
PAD
35-200L
PAD
60-120L
PAD
110-60L
Isolation voltage ±250 V ±250 V ±250 V