10
3.2.
Power supply and load resistance characteristics
Maximum current available between terminals 2 and 3: 300 mA at 20 V.
Maximum no load voltage between terminals 2 and 3: 30 V
Load resistance between terminals 1 and 2: 47 ohms
4
4
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M
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a
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OLDHAM Arras
II (3) G
OSA 05ATEX0120
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I
V
V
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.
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C
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Mounting is performed using a DIN rail, positioned so that it provides a 5 cm free area around the
central unit.
The MX15 central should be installed in all facilities away from explosive atmosphere, preferably
in an attended area (control centre, console room, control room, etc.) and in a less humid (no
condensation) and temperate environment (see chapters 2.1 and 3)
2
2
.
.
C
C
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Electrical connections should:
-
be performed by a specialist and while the central unit is off (power supply is shut off)
-
comply with existing regulations (including NF C 15-100)
-
has a minimum section of 1.5 mm² and a maximum section of 2.5 mm
2
for power supply
from power system (230VAC)
Check the current nature and network voltage (the network voltage should match the voltage
specified on the central unit maker’s plate).
2.1.
Protective ground
The central unit must be connected to an operating ground. The ground terminal (yellow ochre) is
identified by the following symbol:
Refer to wiring examples at the end of the manual.
Summary of Contents for MX15
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