OJ Electronics TRD-3986 Anleitung Seite 7

TEKNISKE DATA
Forsyningsspænding ....... 24 VDC ±15 %, 50 Hz
Elektrisk tilslutning ........................max. 1,5 mm
Temperatur indstillingsområde ............. 0 – 40 °C
Frostalarm, temp. indstillingsområde ... 0 – 20 °C
Ekstern setpunkt, indstillingsområde ... 0 – 40 °C
Ekstern setpunkt, signal ....................0 – 10 VDC
Ekstern potentiometer for setpunkt ..min. 4,7 kΩ,
Indstilling af P-bånd ........................... 0 – 100 °C
Indstilling af I-tid .............................. 1,5 – 33 min
Standby-indgang .... +12 V, intern pull-up 2,8 kΩ,
Følerindgange ................................2 stk. PT1000
Digital relæudgang .........2 x 250 VAC, 5A, SPDT
Analog udgang (Y1 & Y2) ............. 2 x 0-10 VDC,
Omgivelsestemperatur, drift .............. -10/+40 °C
Omgivelsestemperatur opbevaring ... -50/+70 °C
Egetforbrug ................................................. 6 VA
Dimensioner ........... (se fig. 1) 156 x 45 x 90 mm
Kapsling ........................................................IP20
Vægt ...........................................................300 g
SERVICE OG VEDLIGEHOLD
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Kontakt venligst leverandøren til tilfælde af
problemer.
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OJ Electronics A/S
Stenager 13B • DK-6400 Sønderborg
Tel. +45 73 12 13 14 • Fax +45 73 12 13 13
oj@oj.dk • www.oj.dk
CE MÆRKNING
OJ Electronics A/S erklærer under ansvar, at
dette produkt opfylder Rådets Direktiv 92/31 og
efterfølgende ændringer om elektromagnetisk
kompatibilitet samt Rådets Direktiv 73/23 og
efterfølgende ændringer om elektrisk materiel
bestemt til anvendelse inden for visse spæn-
dingsgrænser.
Anvendte standarder
• EN 61000-6-2 og EN 61000-6-3
Elektromagnetisk kompatibilitet (EMC)
• EN 60730-1 Lavspændingsdirektivet.
IBRUGTAGNING OG GARANTI
Produktet må kun tages i brug når hele instal-
lationen opfylder gældende direktiver.
Når produktet er installeret i henhold til denne
vejledning og gældende installationsforskrifter,
er produktet omfattet af fabriksgaranti.
Hvis produktet har været udsat for beskadi-
gelse, f.eks. under transport, skal det efterses
og kontrolleres af kvalificeret personale før
produktet tilsluttes forsyningsnettet.
,
2
skrueterminaler LIST OF FIGURES
The following figures are located at the back of
the instructions:
Fig. 1: Dimensioned sketch
Fig. 2: Terminal diagram
Fig. 3: Inlet temperature control with one heat-
max. 100 kΩ ing battery
Fig. 4: Room temperature control with one
heating battery
Fig. 5: Sequential control of heating battery
aktiv høj and cooling battery
Fig. 6: Sequential control of two heating bat-
teries
Fig. 7: Sequential control of heating battery
(max. 10 mA) and rotary heat exchanger
Fig. 8: Sequential control of hydronic heating
battery and electric heating battery
Fig. 9: Sequential control of heating battery
and cross-flow heat exchanger
Fig. 10: Damper motor, 4-wire lead
Fig. 11: Damper motor, 3-wire lead
Fig. 12: Remote setting via 0-10 V DC signal
Fig. 13: Remote setting via potentiometer
Fig. 14: Frost protection override of output Y1
Fig. 15: Frost protection override of output Y2
Fig. 16: Standby frost protection of hydronic
heating battery
Fig. 17: Setting and operating buttons
Fig. 18: DIP switch settings
Fig. 19: Analogue output diagram, one heating
battery
Fig. 20: Analogue output diagram, two heating
batteries
Fig. 21: Analogue output diagram, cooling bat-
tery and heating battery
Fig. 22: Startup sequence
Fig. 23: Wiring diagram, example 1
Fig. 24: Wiring diagram, example 2
Fig. 25: Wiring diagram, example 3
Fig. 26: Wiring diagram, example 4
Fig. 27: Wiring diagram, example 5
INTRODUCTION
TRD-3986 is a temperature controller with built-
in frost protection feature specially designed for
small and medium-sized ventilation systems.
TRD-3986 has two analogue 0-10 V DC out-
puts, which are easily configured by means of
DIP switches for the control of a single heating
battery or the sequential control of a heating
battery and a cooling battery, a heating battery
and a heat exchanger or two heating batteries.
TRD-3986 also has two digital relay outputs for
controlling damper motors and starting/stop-
ping fans. TRD-3986 has two standard PT-1000
sensor inputs: one for the main sensor, located
either in the inlet duct of a ventilation system
or in the room where temperature is to be con-
trolled, and one for a sensor used to protect the
heating battery from frost.
PRODUCT PROGRAMME
TYPE
TRD-3986
FUNCTION
TRD is a temperature controller which provides
an active 0-10 V control signal for ventilation
systems. Temperature is recorded by means
of a PT-1000 sensor located in a ventilation
duct or room. Depending on whether the
recorded temperature is above or below the
programmed setpoint, the strength of the signal
sent to the heating battery or cooling battery
(heat exchanger) is lowered or raised until the
system reaches equilibrium and the required
temperature is maintained. The controller can
be set for either PI or P control. The adjustable
English
PRODUCT
Temperature controller with frost
protection for ventilation systems
© 2017 OJ Electronics A/S
PI controller is ideal for maintaining a constant
inlet temperature in the ventilation shafts (figs 3
& 23). Stable control of room temperature can
easily be obtained using the adjustable P con-
troller (fig. 4). The controller features two output
steps and is thus suitable for the sequential
control of two heating steps, e.g. two heating
batteries (figs 6 & 24), one heating step and one
cooling step (figs 5 & 25) or one heating step
and one heat recovery step (figs 7, 9, 26 & 27).
Damper motors with 4-wire (fig. 10) or 3-wire
(fig. 11) leads can be connected and rotary heat
exchangers can be controlled via a standard
0-10 V DC signal.
Startup procedure
The system is started and the controller
released for control purposes by activating the
"Standby input" on terminals 8 & 9 (8-9 = "1").
Initially, the heating step on Y1 is set to 100%
for 60 seconds (fig. 22). If the temperature
recorded by the main sensor drops below the
value set on the "a" button and DIP4 is set to
"Heating" ("OFF"), Y2 is set to 100% for 60 sec-
onds and the fan is then started by R1 switch-
ing to "ON" (R1=16-18="1"). TRD then controls
the temperature recorded by the main sensor in
accordance with the value set on the setpoint
dial (button "a") or the setpoint received via a
remote signal, DIP3.
CONTROL
Control of one heating battery
Inlet/room temperature is controlled by regulat-
ing a heating valve (figs 3, 4 & 23). If the inlet/
room temperature is below the value set on but-
ton "a" or via an external temperature setpoint
signal, the Y1 output is gradually increased
towards 100% (+10 V DC), depending on the P-
band and I-time settings. If the inlet/room tem-
perature is above the value set on button "a" or
via an external temperature setpoint signal, the
Y1 output is gradually reduced towards 0% (+0
V DC), depending on the P-band and I-time set-
tings (only with PI control). Note the DIP switch
settings (fig. 18).
Sequential control of two heating batteries
Inlet/room temperature is controlled by sequen-
tially regulating two heating valves (figs 6, 20
& 24). If the inlet/room temperature is below
the value set on button "a" or via an external
temperature setpoint signal, first the Y1 output
and then the Y2 output are gradually increased
towards 100% (+10 V DC), depending on the
P-band and I-time settings (I-time only with PI
control, i.e. DIP2="off"). If the inlet/room tem-
perature is above the value set on button "a" or
via an external temperature setpoint signal, first
the Y2 output and then the Y1 output are gradu-
ally reduced towards 0% (+0 V DC), depending
on the P-band and I-time settings (I-time only
with PI control, i.e. DIP2="off"). Note the DIP
switch settings (fig. 18).
Sequential control of heating battery and
cooling battery
Inlet/room temperature is controlled by
sequentially regulating a heating valve and a
cooling valve (figs 5, 21 & 25). If the inlet/room
temperature is below the value set on button "a"
or via an external temperature setpoint signal,
the Y2 output (cooling) is first gradually reduced
towards 0% and then the Y1 output (heating) is
gradually increased towards 100% (+10 V DC),
depending on the P-band and I-time settings
(I-time only with PI control, i.e. DIP2="off"). If
the inlet/room temperature is above the value
set on button "a" or via an external temperature
setpoint signal (+2°C), the Y1 output (heating)
is first gradually reduced towards 0% and then
the Y2 output (cooling) is gradually increased
towards 100% (+10 V DC), depending on the
P-band and I-time settings (I-time only with
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