COSMOGAS Adveco MYDENS 15B, Инструкция по установке, использованию и техническому обслуживанию

Страница: 24 / 96

24
MYDENS COSMOGAS
5 - INSTALLATION
5.14.7 - 0-10 VDC type dialogue
The appliance be controlled via 0-10 VDC dialogue by
proceeding as follows:
1. - Use a bipolar cable, with a minimum cross-section of
1,5 mm²;
2. - The maximum length allowed is 20 metres, for lengths
exceeding 100 metres use a shielded cable with shield
earthing;
3. - Connect the bipolar cable to the “0-10” clamps (Figure
19);
4. - Set parameter
2001
at the value 4 (Section 7.16);
5. - Control the appliance via the 0-10 VDC signal
according to the operating rules (Figure 21);
l
Respect the polarity between the positive pole and
the negative pole.
l
Opening the TA contact has priority over the 0-10 V
signal.
l
Make sure that:
- parameter
2023
has a lower value than parameter
2110
;
- parameter
2024
has a greater value than parameter
2111
;
5.14.8 - Alarm output
When not otherwise specified, refer to Figure 19.
The alarm output closes whenever the appliance shows an
error or locks.
To enable the alarm output, connect the cables to the "MF"
terminals and set parameter
2125
=
6
.
f
WARNING!!! The alarm output is 230V and can
supply a maximum load of 0,5A.
l
If there is an automatic system filling valve, it is not
possible to connect the alarm output because they use
the same "MF" terminals.
The alarm output is activated with a delay of 60 seconds
from the display of the error or block.
1.0 1.5
2 3 4 5 6 7 8 9
10
OFF ON
T.MAX
T.MIN
(”H”)
ON/OFF
ch_mode_4_graph
Figure 21
T.MAX = Maximum supply temperature
(Par.
2111
);
T.MIN = Minimum supply temperature
(Par.
2110
);
("H") = ON/OFF hysteresis;