SAFETY CONVENTIONS VM-5S
iv
■ EMC(Electro-magnetic compatibility)
The EMC of each VM-5 Series monitor is evaluated by various noise tests.
However, its characteristics may vary with on environmental conditions such as the magnitude of noise,
ambient temperature, humidity and the arrangement of equipment.
For the above reason, when operating the monitor, please observe the following CAUTION.
CAUTION
The monitor unit should be operated by specialists or personnel who have
knowledge of it.
When a shielded cable is used, the length of the unshielded cable section
should be less than 100mm.
For each relay used near this monitor unit, devices related to this monitor
unit or signal cables connecting the monitor unit and these devices, install
a surge killer.
Firmly tighten each screw used for mounting each unit. In additional,
always close the face plate for the monitor unit, then fix it with knurled
screws.
In order to prevent the system from its malfunction when the monitor unit
fails, provide the systematic interlock function.
Do not wire input signal cables in parallel with control and power cables.
It is recommended that separated wire ducts be used for these cables.
Do not use any radio equipment near the monitor unit.
■ Noise filter
Noise transmitted through in each cable may be rejected to some extent by inserting a ferrite core in the cable
(note 1).
If the cable passes through noisy surroundings, it is recommended that such a noise prevention device is used.
(note 1) ZCAT3050-1330 : TDK
MANDATORY
MANDATORY
MANDATORY
MANDATORY
MANDATORY
PROHIBITION
PROHIBITION
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