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11.2.2 Mainboard inputs and outputs
Customer side interfaces
Inputs
ST08:
•
Control signal 0...10 VDC
•
Control signal 0...20 mA
•
Control signal 0...140
Ω
Outputs
ST03:
•
Potential-free programmable NC and
NO contacts, (factory assignment is
„collective fault“)
ST10.1:
•
Connection option für 2 additional
relays of the top head type (K20, K21)
(ordering option).
ST07:
Control signal 0...10 VDC (max. 8 mA)
ST08:
•
+20 VDC humidity sensor supply volt-
age (max. 20 mA)
ST15:
•
Tap for 1,2 and N (unsecured) for cus-
tomer use
USB:
Connection for USB stick for use as a data
logger and for parameter updates
System interfaces
Power supply and safety interlock
ST01:
•
4-pin plug connection with screw terminal
adaptor for L and N power connection
and safety interlock („Terminals 1/2“)
Inputs
ST09
(only for heater steam humidifiers)
:
•
Filling level sensor
ST09
(only for electrode steam humidifiers)
:
•
Current transducer connection
ST04-B
(only for heater steam humidifiers)
:
•
Galvanically isolated thermo switch
input (via optical coupler)
•
Dielectric strength 600 VAC
ST04-B
(only for electrode steam humidifiers)
:
•
Galvanically isolated sensor electrode
input (via optical coupler)
Dielectric strengh 600 VAC
Outputs
ST04-A:
•
Main contactor(s)
ST05:
•
Blow-down pump
ST06:
•
Inlet solenoid valve
ST07
(only for heater steam humidifiers)
:
•
Solid state relay control signal (PWM),
20 mA max.
Bidirectional
ST12.1:
•
Control panel serial interface
ST 13:
•
RS485 interface adapter PCB socket
ST03
ST08
ST05
ST13
ST15
ST12.1
ST06
ST09
ST04.A
USB
F2
F1
ST07
ST04.B
ST01
ST10.1
