EC Directives
Section 6
xiv
•
Provide external interlock circuits, limit circuits, and other safety circuits in
addition to any provided within the PLC to ensure safety.
6 EC
Directives
1,2,3…
1,2,3…
C200HW-CORT21-V1 Units that meet EC directives must be installed as
follows:
1. C200HW-CORT21-V1 Units are defined for installation inside control
panels. All C200HW-CORT21-V1 Units must be installed within control
panels.
2. Use reinforced insulation or double insulation for the DC power supplies
used for the communications power supply, internal circuit power supply,
and the I/O power supplies.
3. C200HW-CORT21-V1 Units that meet EC directives also meet the
common emission standard (EN50081-2). When C200HW-CORT21-V1
products are built into equipment, however, the measure necessary to
ensure that the standard is met will vary with the overall configuration of
the control panel, the other devices connected tot the control panel, and
other conditions. The user must therefore confirm that EC directives are
met for the overall machine or device.
The following examples show means of reducing noise.
1. Noise from the communications cable can be reduced by installing a
ferrite core on the communications cable within 10 cm of the C200HW-
CORT21-V1 Unit.
2. Wire the control panel with as thick and short electric lines as possible
and ground to 100
Ω
or less.
3. Keep the communications cables as short as possible and ground to
100
Ω
or less.
Содержание C200HW-CORT21-V1
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Страница 6: ...C200HW CORT21 V1 CANopen Slave Unit Operation Manual Produced June 2001 ...
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