Rockwell Automation T8094 8000 Series TMR System Safety Manual - Manual (Page 71)

SAFETY MANUAL
D oc N umber T8094
I ssue 27 – June 2013
Page 50 of 103
3.13.2 Electromagnetic Compatibility (EMC)
The TMR system is designed and tested to be resistant to usual levels of conducted
and radiated electromagnetic interference and electrostatic discharge. The levels of
electrical environmental noise depend on the design of the equipment installation,
wiring, other installed equipment, and how near it is to the TMR
equipment.
You must make sure that the TMR system complies with the client’s requirements and
with applicable national or regional standards:
• For installations in the European Economic Area, the CE mark requirements for
EMC are a legal minimum for electromagnetic emissions.
• For installations in other locations, you must try to find out if the local
electromagnetic interference (EMI) levels are higher than those shown in Table
10.
Parameter Conditions Remarks
Electrostatic
Discharge
15kV air discharge
8kV contact discharge
Contact is direct
to equipment
Electromagnetic
Field
10V/m
23MHz to 1GHz
Conducted Noise/
Fast Transient
Immunity Test
(Burst)
2kV test voltage – power
supplies
1kV test voltage – digital I/O ( ≥ ≥ ≥ ≥
24V)
0.25kV test voltage – digital
(<24V), analogue and
communication I/O
On system
external
connection (e.g.
terminals)
Table 10 - Electromagnetic Compatibility
3.13.3 Physical Installation Design
3.13.3.1 Enclosure
The Trusted TM T8100 controller chassis must be installed in an EMC-rated enclosure.
The Trusted TM system makes high levels of radiated emissions and it will get EMC
emissions compliance only when care is taken to make sure that none of these signals
leak out of the enclosure.
If the side panels of the enclosure are removed, or the doors are opened (for example,
during maintenance work), the immunity of the controller chassis to EMC interference
is unchanged, but the emissions radiated from the installation to its environment will be
higher.
IMPORTANT: The side panels of the enclosure must be installed and the doors must
be kept closed to let the system comply with the usual EMC environmental constraints
for emissions.
If the expected EMI levels are higher than those shown in Table 10, you must apply
applicable protection measures.