Use In Difficult Operating Conditions - YASKAWA iC9200 Series Operating Manual

iC9200 Series
Requirements to clearance / creep-age current distances and system power supply
DIN EN 61131-2
DIN EN 13849
DIN EN 50178
DIN EN 61508
DIN EN 50178
DIN EN 60204-1
Requirements for environmental and EMC testing
DIN EN 61131-2
DIN EN 62061 Appendix E
1.18

Use in difficult operating conditions

HB700 | CPU | PMC921xEx | en | 24-04
The definition of clearance and creep-age current distances takes place in
accordance to EN 61131-2. For the safe field bus coupler over-voltage cate-
gory 2 and degree of pollution 2 are basis.
The acceptance of error exclusions for short-circuits between neighbouring
conductor or for short-circuits between neighbouring components must be
avoided as far as possible by suitable circuit and layout measures. If an error
exclusion is inevitable, measures are to be used in accordance with EN 13849
part of 2.
The device is developed for operation on 24V power supplies, which corre-
spond to the PELV-/SELV regulations in accordance to EN 50178.
The normative requirements of the 61508 (increased EMC requirements and
requirements concerning isolation) are to be fulfilled also for the common
voltage circuit of the SLIO system.
So that the electrical values for extra-low voltage with safe separation cannot
be exceeded on the safe field bus coupler, for the system 24V power sup-
plies are exclusively used, which correspond to the PELV /SELV regulations in
accordance with EN 50178.
In order to protect the safe field bus couplers against over-voltage, a suitable
over-voltage protection is provided.
The 24V power supply must keep the voltage interrupt according to EN
60204-1.
Programmable logic controllers,
part 2: Equipment requirements and tests
For higher EMC immunity tests DIN EN 61326-3-1:2017 is applied.
Without additional protective measures, the products must not be used in
locations with difficult operating conditions; e.g. due to:
−
dust generation
−
chemically active substances (corrosive vapors or gases)
−
strong electric or magnetic fields
Use in difficult operating conditions
General
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