HygroMatik HPS250, Руководство по эксплуатации

Страница: 42 / 92

Page 42
Additionally, the parameter „Cooling“ (15:adi-
abate/12) must be set to „1“ (only visible
when code „090“ was input).
Parameter „Digital_input_function“ (10:func-
tions/12) must be set to „51“ in order to allow
the start of the exhaust air cooling.
Switch for 1-step operation in supply air
humidification mode
Operation with active humidity sensor or
external controller
Terminal wiring of the mainboard is to be
made as for the standard unit (supply air
humidification ex-factory), exemplarily shown
below for the connection of an active humid-
ity sensor. Additionally, the terminals on ST05
of the expansion board must be wired with
S3 for switch-over.
11.6.4 General use of the digital input
on the mainboard
The digital input on the main board can be
used for switching functions, unless it has
already been configured in ex-works. The
digital input must be wired on-site in accord-
ance with its use, e.g. with a switch (also see
section 13 „Function parameters“ ).
20 VDC
S1, S2: NO contacts
Terminal strip on ST08
Terminal 3/5/8 wiring on the mainboard (termi-
nal strip on ST08) for exhaust air cooling (S2
open). The one-step operation will be
switched on by closing S1.
3
45
6
7
8
S1
S2
3
45
6
7
+20 VDC
humidity sensor
GND
0...10V
8
Terminal 3/4/5 wiring on the mainboard (terminal
strip on ST08) for connection of a 0...10 V active hu-
midity sensor
Terminal strip on ST08
20 VDC
S1: NO contacts
Terminal strip on ST08
Terminal 3/8 wiring on mainboard (making use
of the digital input)
3
45
6
7
8
S1