4
80290C_MHW_2400_0908_ENG
2 • INSTALLATION AND CONNECTION
This section contains the instructions necessary
for correct installation of the instrument 2400
into the machine control panel or the host
system and for correct connection of the control-
ler power supply, inputs, outputs and interfaces.
Before proceeding with installation read the
following warnings carefully!
Remember that lack of observation of these
warnings could lead to problems of electrical
safety and electromagnetic compatibility, as
well as invalidating the warranty.
Electrical power supply
• the instrument is NOT equipped with an On/Off switch:
the user must provide a two-phase disconnecting
switch that conforms to the required safety standards
(CE marking), to cut off the power supply upstream of
the instrument.
The switch must be located in the immediate vicinity of
the instrument and must be within easy reach of the
operator.
One switch may control more than one controller.
• if the instrument is connected to NOT isolated electrical
equipment (e.g. thermocouples), the earth connection
must be made with a specific conductor to prevent the
connection itself from coming directly through the
machine structure.
• if the instrument is used in applications with risk of
damage to persons, machinery or materials, it is
essential to connect it up to auxiliary alarm
equipment. It is advisable to make sure that alarm
signals are also triggered during normal operation.
The instrument must NOT be installed in flammable or
explosive environments; it may be connected to
equipment operating in such atmospheres only by
means of appropriate and adequate types of
interface, conforming to the applicable safety
standards.
Notes Concerning Electrical Safety and
Electromagnetic Compatibility:
CE MARKING: EMC Conformity (electromagnetic
compatibility)
in accordance with EEC Directive 89/336/CEE and follo-
wing modifications.
The instrument series 2400 are mainly designed to ope-
rate in industrial environments, installed on the switch-
boards or control panels of productive process machi-
nes or plants.
As regards electromagnetic compatibility, the strictest
generic standards have been adopted, as indicated in
the table below.
BT Conformity (low voltage) in accordance with
Directive 2006/95/CE.
EMC conformity has been tested with the following
connections.
Function Cable type Length
Power supply cable 1mm
2
1m
Relay output cables 1mm
2
3,5m
Serial connection wire 0,35mm
2
3,5m
Thermocouple input 0,8mm
2
compensated 5m
Strain gauge input, potentiometers, linears,
“PT100” temperature resistance 1mm
2
3m
Control and retransmission analog outputs 1mm
2
3,5m
Digital Inputs / Outputs 1mm
2
3,5m
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