Instruction manual for devices of the MASI20 series
V 1.0
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3.4 Wiring (bus and supply cables)
3.4.1 Field bus
AS-Interface field bus wiring is effected using a 2-wire cable conforming to AS-Interface
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specifications.
Wires
brown
Field bus system cable (ASI+)
blue
Field bus system cable (ASI-)
Bus connection is performed using 2 wires.
Two types of connectors can be used to connect the module.
3.4.2 Power supply
An additional power supply source may become necessary as soon as the energy delivered by the slave
from the bus is not sufficient for the current consumption of the AS-Interface slave and the corresponding
peripheral components such as sensors and/or actuators.
Typical applications requiring an additional power supply :
- Photoelectric safety locking,
- Inductive loads (switching devices, valves ..).
- etc…
The additional power supply unit must be fitted with a protection cutoff device and
must be in conformity with PELV directives according to IEC 364-4-41.
Wiring in switch cabinets is effected with single wires. It is also possible to use an adapted round cable or
the specific profiled flat cable.
Wires
brown
Auxiliary supply 24V DC (+24V DC)
blue
Auxiliary supply 24V DC (0V)
Bus connection is performed using 2 wires.
Two types of connectors can be used to connect the module.
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see Chapter 2.4.1 : System cables
