Carel heaterSteam UR Series, Руководство пользователя

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20
ENG
“heaterSteam” +0300075EN - rel. 1.2 - 29.09.2015
4.4 Steam production command signals
Attention: follow this sequence of steps in order to avoid
damaging the control board:
1. program the controller and turn it off ;
2.
make the electrical connections;
3. switch the controller on.
The humidifi er is fi tted with solid-state relays, therefore its capacity
can vary from zero to 100% depending on the control requirements.
In addition, it can be connected by means of RS485 serial to a remote
supervisor. Depending on the type of signal used you can obtain
diff erent types of enabling and/or management of the steam production
(ON/OFF or modulating). Production enabling is achieved by electrically
connecting the terminals 7I and 8I (jumper).
1. Steam production can be launched as follows:
HUMIDISTAT (ON/OFF):
•
connect the inputs 4l and 5l (production command) to a humidistat;
•
set parameter A0=0 to enable action ON/OFF
1I 2I 3I 4I 5I 6I 7I 8I
Fig. 4.l
Attention: prior to connecting the signal you must set the
parameters A0-A2-A6. See Paragraph 8.2.
HUMIDISTAT and REMOTE CONTACT (on/off )
•
connect the inputs 4l and 5l (production command) to a humidistat;
•
connect the inputs 7l, 8l (enabling) to a remote contact (e.g.: switch,
timer, ...);
•
set parameter A0=0 to enable action ON/OFF
1I 2I 3I 4I 5I 6I 7I 8I
Fig. 4.m
Attention: prior to connecting the signal you must set the
parameters A0-A2-A6. See Paragraph 8.2.
2. Enabling and adjusting steam production as follows:
EXTERNAL PROPORTIONAL REGULATOR (modulating action)
•
jumper connect inputs 7l, 8l;
•
connect outputs 5l, 6l (production command) to an external regulator;
•
set parameter A0=1 to enable the modulating action (see chapter 7)
and parameter A2 according to the signal chosen (0...1V, 0...10V, 2...10V,
0...20mA, 4...20mA).
1I 2I 3I 4I 5I 6I 7I 8I
O
UT
REF
Fig. 4.n
Attention: prior to connecting the signal you must set the
parameters A0-A2-A6. See Paragraph 8.2.
EXTERNAL PROPORTIONAL REGULATOR and REMOTE CONTACT
(modulating action)
•
connect inputs 7l and 8l to a remote contact (enabling);
•
connect outputs 5l and 6l (production command) to an external
regulator;
•
set parameter A0=1 to enable the modulating action (see chapter 7)
and parameter A2 according to the signal chosen (0...1V, 0...10V, 2...10V,
0...20mA, 4...20mA).
1I 2I 3I 4I 5I 6I 7I 8I
O
UT
REF
Fig. 4.o
Attention: prior to connecting the signal you must set the
parameters A0-A2-A6. See Paragraph 8.2.
Note : in the industrial sector (CEI EN61000-6-2) signal cables that
come out of the appliance must not exceed 30 m in length: steam
production signal cable (terminals 5I, 6I), the remote ON/OFF digital input
(terminals 7I, 8I) and shielded cable for RS485 communication.
4.5 Control with humidity probes
The main control board, connected to an environment humidity
control probe, adjusts the steam production according to the humidity
measured. You can connect a second humidity probe on the outlet: in
this confi guration, typical of air treatment plants, the main control board
continues to adjust the steam production according to humidity, which
depends however on the value of the relative humidity measured in the
outlet duct.
HP HLP
Remote Contact
Fig. 4.p
Key:
HP
Environment humidity regulating probe (intake/environ-
ment humidity probe)
HLP Humidity limit probe (outlet humidity probe)
Remote Contact Remote contact
Attention: prior to connecting the signal you must set the
parameters A0-A2-A6. See Paragraph 8.2.