1592030000 xh50_55p r1.2 gb 2011.06.28.doc
XH50-55P
3/5
9.
HOTKEY
The configuration of the instrument can be done by serial RS485 line or thanks to the
HOTKEY DK00000100.
HOW TO COPY THE PARAMETERS FROM DEVICE TO HOTKEY
With device powered ON, insert the hotkey in the 5 pin receptacle, the device notices
the hotkey presence and the three LEDs flashes for three seconds in order to inform you
that the copy is starting. To indicate that the procedure ends up with success the
GREEN LED will blink for 5 seconds or otherwise if the procedure ends up without
success the RED LED will blink for 5 seconds, in this last case it’s necessary to repeat
the procedure or to change the HOTKEY.
HOW TO COPY THE PARAMETERS FROM HOTKEY TO DEVICE
With device powered OFF, insert the hotkey in the 5 pin receptacle and switch on the
device. The procedure starts automatically and to indicate that the procedure ends up
with success the GREEN LED will blink for 5 seconds or otherwise if the procedure
ends up without success the RED LED will blink for 5 seconds.
10.
ANTI-SWEAT HEATERS REGULATION (WITH RELAY
OUTPUT)
The default factory settings permit to regulate the anti-sweat heaters with the relay on
board and the external probe that should be placed on the glass. In case of the default
parameters aren’t able to give you the optimum performance, we can advise to change
the following parameters:
ID
Descrizione
Range
Default
odr
Regulation offset
[-12.0 ÷ 12.0°C] [-21 ÷ 21°F]
1.0°C
Hy
Regulation differential
[0.1 ÷ 25.5°C] [1 ÷ 45°F]
5.0°C
tAr
PWM period
10 ÷ 255 min
10 min
The odr parameter is setted at 1.0°C by default and permits a small safety margin
during the regulation. The Hy parameter permits to set the modulation band for the
power of the heaters. Reducing Hy the load stays OFF for more time (at the same
temperature and dew-point), increasing Hy we can obtain the opposite functioning. The
relay commutation is performed on the tAr time.
11.
ANTI-SWEAT HEATERS REGULATION (WITH ANALOG
OUTPUT)
The regulation of the anti-sweat heaters through analog output is obtained by changing
AOC parameter to dEP value. After that, it’s possible to refine the regulation using odr
and Hy parameters.
12.
CONFIGURATION AS THERMOSTAT
By setting rLC=tER the relay works as a simple thermostat based on set point. In this
case, the device works as zone thermostat in heating mode. By changing the parameter
it’s possible to invert the action.
13.
KNOB (ONLY XH55P)
In case of XH55P it’s present a knob that permits to set an offset respect to the set
point of
3°C (this value can be changed with Ltr and Utr parameters). If the knob is
completely turned off all the output are switched off.
14.
PARAMETER LIST
Set
Regulation set point: is the set point for relay or analog output regulation.
Hy
Regulation differential: band for the regulation of the relay or histeresys of
activation/deactivation of relay during thermostatic functioning.
odr
Regulation offset: offset for regulation set point.
HES Energy saving offset: is the energy saving offset that is added to the set point
when the digital input configured as i1F=ES is activated.
CH
Regulation kind of action: direct or reverse functioning for the relay.
rPA
Regulation probe A: selects the first regulation probe between: nP=not
present, external probe (Etr) or internal probe (int).
rPb
Regulation probe B: selects the second regulation probe between: nP=not
present, external probe (Etr) or internal probe (int).
rPE
Regulation percentage between probes A and B: percentage between probe
A and probe B. The virtual probe follow the formula:
Value = (rPA*rPE + rPb*(100-rPE))/100
CF
Measurement units: °C=Celsius; °F=Fahrenheit. WARNING: after changing
measurement unit you have to check all the values of all parameters.
odS Start up outputs delay: allows starting the output and the regulation with soma
delay to allow measurement stabilization.
rHC Digital humidity sensor presence: enable or disable the humidity sensor.
orH Humidity sensor offset: it permits simple reading offset.
tdC
Digital temperature sensor activation.
ot
Digital temperature sensor offset: it permits simple reading offset.
AuC External temperature sensor presence: it permits to enable/disable external
probe.
oE
External temperature sensor offset: it permits simple reading offset for
auxiliary probe.
AOC Analog Output working mode: select the working mode for analog output.
If:
nP: not present, analog output deactivated.
Etr: analog output regulation based on the external temperature probe.
int: analog output regulation based on the internal temperature probe.
HPr: analog output regulation based on the humidity value.
dP: analog output regulation based on the dew-point temperature.
dEP: analog output regulation based on the dew-point.
MAn: analog output goes on An value.
The value of analog output can change from 0 to 100% inside of the band define
by LAO and UAO as reported on the following charts.
--------- --------- --------- --------- --------- --------- ---------
AoC=Etr, int, HPr, dP and Ant=dir
--------- --------- --------- --------- --------- --------- ---------
