8 - DRR244 -
User manual
2
Model Identification
The DRR244 controller provides the following model:
Power supply 24..230 VAC/VDC ±15% 50/60 Hz – 9 Watt/VA
DRR244-13ABC-T 1 analogue input + 2 relays 5 A + 1 relay 2 A + 2 SSR + 2 D.I. + 1 analogue output
V/mA + RS485 + CT
3
Technical Data
3.1
General Features
Displays
4 digits 0,52’’, 5 digits 0,30’’
Operating temperature
Temperature: 0-45° C -Humidity 35..95 uR%
Max. altitude: 2000m
Sealing
IP20 box
Material
Box: Polycarbonate self-extinguishing;
Front panel: Polyamide self-extinguishing
Weight
Approx. 210 g
3.2
Hardware Features
Analogue inputs
AI1
Configurable via software.
Input
: Thermocouple type K, S, R,
J,T,E,N,B.
Automatic compensation of cold
junction from -25..85° C.
Thermoresistances
: PT100, PT500,
PT1000, Ni100, PTC 1K, NTC 10K (β
3435K)
Input V/mA
: 0-1 V, 0-5 V, 0-10 V, 0-20 o
4-20 mA, 0-60 mV.
Pot. Input
: 1...150 KΩ.
CT
: 50 mA.
Tolerance (25° C)
± 0.2% ±1 digit (on F.s.) for thermocou-
ple, thermoresistance and V/mA.
Cold junction accuracy 0.1° C/°C.
Impedence
:
0-10 V
: Ri>110 KΩ
0-20 mA
: Ri<5 Ω
0-40 mV
: Ri>1 MΩ
Relay outputs
Configurable as command and alarm
output.
Contacts:
Q1, Q2: 5 A - 250 VAC for resistive load.
Q3: 2 A - 250 VAC for resistive load.
SSR outputs
Configurable as command and alarm
output.
12/24 V, 25 mA.
Analogue output
Configurable as command
and alarm output or as retrasmission of
process / setpoints.
Configurable:
0-10 V
with 40000 /-0.2% (on
F.s.)
4-20 mA
con 40000 /-0.2% (on
F.s.)
Power-supply
Extended power-supply 24..230 VAC/
VDC ±15% 50/60 Hz
Consumption:
9 Watt/VA
3.3
Software Features
Regulation algorithms
ON-OFF with hysteresis.
P, PI, PID, PD with proportional time
Proportional band
0..9999°C o °F
Integral time
0,0..999,9 sec (0 excludes)
Derivative time
0,0..999,9 sec (0 excludes)
Controller functions
Manual or automatic Tuning, selectable alarm, protection of command
and alarm setpoints.
