TAC Xenta 421A - Page 25

TAC Xenta, TAC Xenta® 400 I/O Modules 3 Technical Description
TAC AB, Dec 2004 25 (48)
0-004-7771-3 (EN)
Technical data TAC Xenta 451 and 452
Supply voltage (G, G0) .................................24 V AC ±20%, 50/60 Hz
or..........................................................................19–40 V DC
Power consumption.................................................................max. 2 W
Transformer sizing .........................................................................4 VA
Universal inputs (U1–U4):
Quantity..........................................................................................4
A/D-resolution ......................................................................12 bits
–as Digital Inputs;
Voltage across open contact..................................... max. 28 V DC
Current through closed contact ...............................................4 mA
Pulse input duration (TAC Menta CNT block)..............min. 80 ms
–as Thermistor Inputs;
Supply voltage..................................................................0.6 V DC
TAC thermistor sensor........................ 1800 ohms at 25 °C (77 °F)
–as Voltage Inputs;
Input signal....................................................................0–10 V DC
Input resistance ..............................................................100 kohms
accuracy ................................................................ 1% of full scale
LED digital input status indicators (TAC Xenta 452 only):
Quantity..........................................................................................4
Color.................................red or green, selected with a DIP switch
Thermistor inputs (B1–B4):
Quantity..........................................................................................4
A/D-resolution ......................................................................12 bits
TAC thermistor sensor........................ 1800 ohms at 25 °C (77 °F)
Measuring range.................. –50 °C to +150 °C (–58 °F to 302 °F)
Accuracy:
–50 °C to –30 °C (–58 °F to –22 °F)...................... ±4 °C (±7.2 °F)
–30 °C to –10 °C (–22 °F to +14 °F) ..................... ±2 °C (±3.6 °F)
–10 °C to +10 °C (+14 °F to +50 °F)..................... ±1 °C (±1.8 °F)
+10 °C to +30 °C (50 °F to 86 °F)...................... ±0.5 °C (±0.9 °F)
+30 °C to +60 °C (86 °F to 140 °F)....................... ±1 °C (±1.8 °F)
+60 °C to +120 °C (140 °F to 248 °F)................... ±2 °C (±3.6 °F)
+120 °C to +150 °C (248 °F to 302 °F)................. ±4 °C (±7.2 °F)
Analog outputs (Y1–Y2):
Quantity..........................................................................................2
D/A-resolution ......................................................................12 bits
Control voltage..............................................................0–10 V DC
Control current, short-circuit proof................................max. 2 mA
Deviation max ±1%
Manual control of the analog outputs (TAC Xenta 452 only):
Quantity..........................................................................................2
Switch positions........................................................MAN, AUTO
Control voltage..............................................................0–10 V DC