CLIVET ELFOControl2 User Manual

Page 73
ERROR: RS485 NETWORK
TROUBLESHOOTING
1.
All the units requested do not
respond.
- Verify no short-circuits occurred on the
RS485 serial line
- Ensure that the power supply is
available.
2. Some units requested do not
respond.
- Ensure they are switched on
- Ensure that the address, baud-rate and
parity are correct
- Ensure that they are connected to the
bus correctly
- Referring to the electrical diagram, verify
if the TTL/485 converter on the fan coil
is connected correctly or it has been
introduced erroneously on the card
programming TTL
- Try to replace the converter installed
- Ensure that the bus is polarised
(Dip 1 - 2 = ON on one converter TTL
485 , indications at page 30).
3. From a certain point on, the units do
not communicate
- It is likely that the bus of the first unit
does not communicate due to a short-
circuit
- It is likely that the unit that precedes
physically the first unit that does not
communicate have inverse bus polarity
- It is likely that the line section that
powers these units is interrupted
accidentally or is not connected.
DISPOSAL
FOR DISMANTLING AND DISPOSING THE UNIT MUST ALWAYS
BE DELIVERED TO AUTHORISED CENTRES.
All materials must be recovered or disposed or in compliance with
the relative national standards in force.
For further information on the dismissal of the unit, contact the
manufacturing company.
The units falling within the standard in question are marked with the
symbol at the side.
With a view of respecting the environment, our units are
manufactured in accordance with EC Directive on waste electric and
electronic equipment (WEEE).
If necessary, additional information to that listed below can be
requested from the manufacturer/distributor/importer, as responsible
for the collection/treatment of waste deriving from equipment
contemplated by EC - WEEE, and the dealer from where the
equipment was purchased or the local services in charge of waste
collection.
The EC-WEEE Directive foresees that the disposal and recycling of
electric and electronic equipment, indicated therein, are compulsorily
managed through appropriate collection, in adequate centres,
separate to that used for the disposal of mixed urban waste.
The user must not dispose of the equipment at the end of its life-
span, as urban waste, but convey it to appropriate collection centres,
as foreseen by the current standards or indicated by the distributor.
Dismantling EC WEEE Directive

CLIVET ELFOControl2 Specifications

General

Brand	CLIVET
Model	ELFOControl2
Category	Controller
Language	English