3-22
IM 253710-01E
3.10 Wiring a Circuit with Voltage Input Exceeding
600 V
When the voltage across the voltage input terminals exceeds 600 V, do not directly input
the current to the current input terminals. Connect the output of an isolation sensor (CT,
DT-CT, or clamp) to the current sensor input connector.
WARNING
• The rated voltage between the input terminal (voltage input terminal, current
input terminal, and current sensor input connector) and earth ground is 600 V.
Do not apply a voltage exceeding 600 V.
• The rated voltage between the voltage and current input terminals, between the
voltage input terminal and current sensor input connector, and between the
current input terminal and current sensor input connector is 600 V. Do not apply
a voltage exceeding 600 V.
• The rated voltage between the U-voltage input terminal and the
±
terminal of
voltage input terminal is 1000 V. Do not apply a voltage exceeding 1000 V.
• When the voltage across the voltage input terminals exceeds 600 V, do not
directly input the current to the current input terminals. Connect the output of an
isolation sensor (CT, DT-CT, or clamp) to the current sensor input connector.
• Follow the precautions given in section 3.4, “Wiring Precautions.”
When the isolation sensor is current output
SOURCE
LOAD
I
U
±
±
When the isolation sensor is voltage output
SOURCE
LOAD
Current sensor input connector (Current sensor)
Input terminal
U
±
Note
For wiring precautions, see also sections 3.8 and 3.9.