55
Remote operating and fault indication H1 (Option “RFI”)
The optional remote operating and fault indication PCB is to be connected
via a flat ribbon cable to the corresponding connector on the control board.
The optional remote operating and fault indication PCB contains four
potentialfree relay contacts for the connection of the following operating
and fault indications:
– “Error”:
This relay is activated if an error is present.
– “Service”: This relay is activated when the set service interval has
expired.
– “Steam”: This relay closes as soon as the unit produces steam.
– “Unit On”: This relay closes as soon as the unit is switched on via the
main switch.
The
maximum contact loading
is
250V/8A
.
Appropriate suppressor modules are to be used for the switching of relays
and miniature contactors.
Control signal (Y)
–
External continuous humidity controller or humidity sensor (A1)
An external continuous humidity controller or a humidity sensor (operation
with internal P/PI controller) is to be connected to the contacts “IN” (+)
and “GND” (–) of the terminal block “XE4” in the control compartment.
Note: the control signal must be set via the control software of the hu
midifier. The admissible control signals are stated in the technical data.
–
Ohmic humidity controller (passive)
An ohmic humidity controller (140Ω...10kΩ) is to be connected to the
contacts “V+”, “IN” and “GND” of the terminal block “XE4” in the control
compartment.
Note: for the ohmic humidity controller a jumper must be set on “JP35V”.
–
24 VDC On/Off humidistat (passive)
An 24 VDC On/Off humidistat is to be connected to the contacts “V+”
and “IN” of the terminal block “XE4” in the control compartment.
Note: for the 24 VDC On/Off control a jumper must be set on “JP324V”.
Air supply limit signal (signal Z)
–
External air supply limiter (A4)
An external air supply limiter (P/PI humidity controller) is to be connected
to the contacts “IN” (+) and “GND” (–) of the terminal plug “X11” on the
power board.
Note: the air supply limiter must be activated and configured via the
control software of the humidifier. The admissible limit signals are stated
in the technical data.
Connection of the fan units FAN4 N...
See separate documentation of the corresponding fan unit.
Содержание AT4 13064
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