Rev. 02-19 Page 21
USER MANUAL
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[S9=8] PROPORTIONAL functioning REFERRED TO VALUE SENT ON RS485
(0-100%):
This type of operation involves the production of steam proportionally to the value set in
register 1537 by means of Modbus-RTU communication.
In this operating mode, the commands to force water discharge and produce steam have a time-
out of 1 minute; if during this period the command is not sent again on Modbus, at the end of
this time the steam production will be set to
zero and the drain pump will be disabled.
This secures the humidifier in case of
accidental disconnection of the communication
network.
Set the second level variable
S9=8
and connect
the instrument to the RS485 line with clamp 32
to line A (TX+) and clamp 31 to line B (TX-).
For further information on Modbus-RTU
Protocol of the humidifier, refer to document
“MODBUS-RTU_UMIDMS03”.
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[S9=9] PROPORTIONAL functioning with NTC ambient temperature probe
(INTEGRATED THERMOSTAT):
This type of operation involves proportional steam production; the humidifier will automatically
regulate the steam production according to the request in the environment depending to the set
point. The consent is provided by a NTC ambient probe that, in addition to regulating steam
production, allows to show the ambient temperature directly on the humidifier display. Set the
second level variable
S9=9
and connect the NTC temperature probe to clamps
18
and
19
of the
Master HUM2 electronic board.
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-
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The 2*r1 proportional band is the value in degrees Celsius (°C) around the temperature set
point; within this band the humidifier works proportionally.
Essence Management (dO4 or dO5 = 4):
See mode S9=7.
Inlet fan (dO4 or dO5 = 3):
See mode S9=7.
Outlet fan (dO4 or dO5 = -3):
See mode S9=7.
B
A
Steam production request
Enabling
NTC Probe
Ambient temperature
°C Ambient
Temperature
Set + r1
Set - r1
