6 ATR171 -
User manual
3.2 Hardware features
Analogue
imput
AI1
-
AI2
:
Configurable via software.
Input
:
Thermocouple type K, S, R, J.
Automatic compensation of
cold junction from 0..50 °C.
Thermoresistances
: PT100,
PT500, PT1000, Ni100, PTC1K,
NTC10K (β 3435K).
- ONLY AI1
Input V/mA
: 0-10 V, 0-20 or
4-20 mA, 0-40 mV.
Input potentiometer
: 6 KΩ,
150 KΩ.
Tolerance (25 °C)
+/-0.2% ±1 digit for thermo-
couple, thermoresistance and
V / mA.
Cold junction accuracy 0.1 °C/°C.
Impedance:
0-10 V: Ri>110 KΩ
0-20 mA: Ri<5 Ω
4-20 mA: Ri<5 Ω
0-40 mV: Ri>1 MΩ
Relay
output
Configurable as control and
alarm output.
Contacts:
Q1, Q2, Q3:
8 A - 250 V~ for resistive charges;
Q4: 5 A - 30 V for resistive
charges.
SSR/V/mA
output
1 SSR - V/mA
Configurable as control output,
alarm, retransmission of process
or setpoint.
12 Vdc / 30 mA.
Configurable:
• 0..10 V (9500 points);
• 0..20 mA (7500 points);
• 4..20 mA (6000 points).
Supply
Extended range 24..230 V AC/V
DC ±15 % 50/60 Hz.
Consumption: 5.5 VA
3.3 Software features
Control
algorithm
ON - OFF with hysteresis.
P., P.I., P.I.D., P.D. proportional time.
Proportional
band
0..9999 °C or °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 alarms, protection of
control and alarm setpoints, function selection from digital input,
start/stop preprogrammed cycle.
Summary of Contents for ATR 171
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