46
Planning
2596995_0_EN_1905
Nortec RS
4.4.4 Remote Fault Indication Board
The optional remote fault indication board includes four relays that can be used to provide remote status
.
Each relay is described below:
Unit On
The normally open relay is closed when the humidifier has power and the On/Off
switch is set to the On position.
Steam
The normally open relay is closed when the board detects that the cylinder is drawing
current and steam is being produced.
Service
The relay can be wired to open (NC) or close (NO) when a warning is displayed on
the humidifier display and the yellow service LED is illuminated.
Error
The relay can be wired to open (NC) or close (NO) when a fault is detected by the
humidifier controls.
Figure 27:
INTERNAL
EXTERNAL
4
3
2
1
2
1
Analog Out
Sensor Supply
Max. 60mA
Unit ON
Steam
Service
Error
1 2 3 4 5 6 7 8 9 10
F1
100mA
J2 on Control Board
Optional Remote Fault Indication Board