Mitsubishi Electric NZ2GN2S-D41P01 User Manual page 687

Test item
EN61000-4-5
*1
Surge immunity
EN61000-4-6
*1
Conducted RF immunity
EN61000-4-8
Power-frequency magnetic field immunity
EN61000-4-11
Voltage dips and interruptions immunity
*1 The module is an open type device (a device designed to be housed in other equipment) and must be installed inside a conductive
control panel. The tests were conducted with the module installed in a control panel.
*2 The accuracy of analog input and analog output may temporarily vary within 10%.
Installation in a control panel
The module is an open type device and must be installed inside a control panel.
This ensures safety as well as effective shielding of module-generated electromagnetic noise.
■Control panel
• Use a conductive control panel.
• When securing the top or bottom plate using bolts, cover the grounding part on the control panel so that the part will not be
painted.
• To ensure electrical contact between inner plates and the control panel, mask off the bolt installation areas of each inner
plate so that conductivity can be ensured in the largest area.
• Ground the control panel with a thick ground cable so that low impedance can be ensured even at high frequencies.
• Keep the diameter of the holes on the control panel to 10cm or less. If the diameter is larger than 10cm, electromagnetic
wave may leak. In addition, because radio waves leak through a clearance between the control panel and its door, reduce
the clearance as much as possible. The leakage of radio waves can be suppressed by the direct application of an EMI
gasket on the paint surface.
Our tests have been carried out on a control panel having the damping characteristics of 56dB (max.) and 48dB (mean)
(measured by 3m method, 30 to 300MHz).
■Wiring of power cables and ground cables
Near the power supply part, provide a ground point to the control panel. Ground the FG terminal with the thickest and shortest
possible ground cable (30cm or shorter).
Cables
Use shielded cables for the cables which are connected to the module and run out from the control panel. If a shielded cable
is not used or not grounded correctly, the noise immunity will not meet the standard value.
■Network cable
Network cables are shielded cables. Strip a part of the jacket as shown below and ground the exposed shield in the largest
possible area.
(1)
(2)
(1) Network cable
(2) Shield
Test details
A lightning surge is applied to the power line and
signal line.
High frequency noise is applied to the power line
and signal line.
The product is installed in an inductive magnetic
*1
field.
A momentary power failure is caused to the power
*1
supply voltage.
Standard value
• AC power line, AC I/O power supply, AC I/O
(unshielded): 2kV CM, 1kV DM
• DC power line, DC I/O power supply: 0.5kV
CM, DM
• DC I/O, AC I/O (shielded), analog
communication lines: 1kV CM
0.15 to 80MHz,
80% AM modulation @1kHz, 10Vrms
50Hz/60Hz, 30A/m
• Apply at 0%, 0.5 cycles and zero-cross point
• 0%, 250/300 cycles (50/60Hz)
• 40%, 10/12 cycles (50/60Hz)
• 70%, 25/30 cycles (50/60Hz)
Appendix 10 EMC and Low Voltage Directives
*2
, and
A
APPX
685