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2. INSTALLING THE INTERFACE
2.1. Installing the enclosure
The Navipass Modbus box is not designed to be fitted inside the boiler. It should
be mounted on a DIN rail (using the two fixings and screws supplied with the kit),
fixed to a wall or possibly fitted.
Antenna without function
LED "communication state
Modbus bus"
Holes at the rear of the enclosure
2.2. Electrical connection
2.2.1.
Cable sections
The following cable sections are given for information purposes only and do not
exempt the installer from checking that they meet requirements and comply with
standards in force.
If a cable is damaged, it must be replaced by the manufacturer, its after-sales
service or any suitably qualified person, in order to avoid any danger.
The interface is supplied with 12V dc solely via the Navistem Bxxxx regulator or
RVS63
Cable
Power supply
RTU/RS485 ModBus
Boiler communication bus
15.12.2022
Ensure that the general electrical power supply
WARNING:
has been cut off before starting any repair work.
Copper conductor section
2 x 0.5 mm² (200m max)
Addressing switches
Screws for DIN rail fixings
2 x 0.5 mm²
3 x 0.5 mm²
NAVIPASS Modbus - Accessory
Buttons for re-initialisation of
the NAVIPASS Modbus
LED "communication state
boiler bus"
Fixings for the DIN rail
Cable tray
Low current
Low current
Low current
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