EXCEL 500/600 INSTALLATION INSTRUCTIONS
Fig. 58 shows several connection examples for various
sensors: WS21 Wind Sensor; SAF 25 Solar Sensor; and VMP
Feedback Potentiometer.
Fig. 58. XF521A connection examples
Fig. 59 shows connections to a TF26.
Terminals 1, 3: temperature adjustment
Terminals 5, 3: room sensor
Terminals 6, 3: LED
XF526 Analog Input Module
Technical Specifications
Number:
eight inputs (AI1 – AI8)
Input:
0...10 Vdc (low-input impedance, 25kOhm to 10 V /
200kOhm to GND);
0...20 mA (via external 500-ohm resistor);
4...20 mA (via external 500-ohm resistor);
NTC 20K ohm (-50...+150 °C);
PT1000 (-50...+150 °C)
PT1000 (0...+400 °C)
PT100 (-50...+150 °C)
PT3000 (-50...+150 °C)
Balco 500 (-50...+150 °C)
Protection:
up to 40 Vdc / 24 Vac
Resolution:
12-bit resolution
Accuracy:
±75 mV or 0.75% (0...10 V)
Table 8. Accuracy of analog input sensors
Range
Measurement error (without
sensor tolerance)
PT1000 NTC 20K
-58...-4 °F (-50...-20 °C) ≤ 1.2 K ≤ 5.0 K
-4...+32 °F (-20...0 °C) ≤ 0.7 K ≤ 1.0 K
+32...86 °F (0...30 °C) ≤ 0.5 K ≤ 0.3 K
86...158 °F (30...70 °C) ≤ 0.7 K ≤ 0.5 K
158...212 °F (70...100 °C) ≤ 1.2 K ≤ 1.0 K
212...266 °F (100...130 °C) ≤ 1.2 K ≤ 3.0 K
266...302 °F (130...150 °C) ≤ 1.2 K ≤ 5.5 K
With current sensors, a terminating resistor of R1 = 499 ohms
± 0.25 % must be connected.
Terminal 18 is an auxiliary output voltage (+10 Vdc,
I
max
= 5 mA) available for various sensor circuits.
Fig. 59. XF521A and TF26 example
EN1R-1047GE51 R0902 28
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