Page 22 Rev. 02-19
USER MANUAL
HUM2 ELECTRONIC BOARD DIGITAL INPUTS
On the electronics of the humidifier there are four digital inputs with the following meaning:
Digital inputs In1, In2 are in low voltage.
Input In1 (clamps 24 and 25):
input with configurable meaning based on the second level
variable In1. By default this input is configured as "main enable": enable with closed contact
between terminal 24 and 25.
Input In2 (clamps 24 and 26):
input with configurable meaning based on the second level
variable In2. the input is active when the contact between terminals 24 and 26 is closed or by
means of the jumper on the board, next to terminal 26. By default, this input is configured as
"discharge pump activation" to enable emptying the cylinder in case the console is not present.
Digital inputs In3, In4 are in high alternate voltage (mains voltage).
These inputs hear the mains voltage and for their
operation require the connection of one of the two
phases (in our case the neutral) to the clamp 4.
Input In3 (clamps 4<neutral> and 6<phase> ):
input with configurable meaning based on the
second level variable In3. The input is active with
phase input to clamp 6.
Input In4 (clamps 4<neutral> and 5<phase> ):
input for maximum water level in the cylinder,
active with phase input to clamp 5.
In ES series humidifiers input In4 is already wired.
If none of the inputs In1, In2 and In3 are configured
as enablement, the humidifier does not need external
enabling to operate.
HUM2 ELECTRONIC BOARD DIGITAL OUTPUTS
On the electronics of the humidifier there are five relays, two of which with configurable function.
The digital outputs Do1, Do2, Do3 and Do5 are normally open contacts with a single common
(terminal 9) while the output Do4 is independent and galvanically isolated, in particular:
Output Do1 (clamps 9 and 10):
Electrodes.
Output Do2 (clamps 9 and 11):
Water load EV.
Output Do3 (clamps 9 and 12):
Discharge pump.
Output Do5 (clamps 9 and 13):
Configurable
relay, already wired on terminals 62 and 63 of the
humidifier, in tension.
Output Do4 (clamps 7 and 8):
Configurable relay.
By default this output is set as alarm relay (second
level variable (second level variable dO4 = 1).
Relay capacity characteristics:
Do1, Do2, Do3: 16(6)A 250Vac
Do4, Do5: 8(3)A 250Vac
In the ES series humidifiers, the outputs Do1, Do2, Do3 and Do5 are already wired.
2.5
2.6
In1
In2
In4
In3
Phase
N
Do5
Do3
Do2
Do1
Do4
