Inovance MD880 Series - Page 88

4 HCU Control Module
- 87 -
Pin No. Name Function Speci󶍾cation
XAO: AO output terminal
1 AO1
AO1 output range: 0–20 mA, Rload
≤ 500 Ω
0–10 V, Rload ≥ 10 kΩ
AO2 output range: 0–20 mA, Rload
≤ 500 Ω
0–10 V, Rload ≥ 10 kΩ
Resolution: 11 bit + sign bit
Accuracy: 2% full scale range
Cross sectional area: 0.5–2.5
mm
2
The shielded twisted pair
cable is recommended.
AO1 and AO1_AGND twisted
pair
AO2 and AO2_AGND twisted
pair
2
AO1_
AGND
3 AO2
4
AO2_
AGND
Jumper J19: AO1 current and voltage signal selection
1 2 3
I U
AO1 current signal output by shorting 1 and 2
1 2 3
I U
AO1 voltage signal output by shorting 2 and 3
Jumper J18: AO2 current and voltage signal selection
1 2 3
I U
AO2 current signal output by shorting 1 and 2
1 2 3
I U
AO2 voltage signal output by shorting 2 and 3
XAI: AI input terminal
1 AI1-
Current input: -20m to +20mA, Rin: 500 Ω
Voltage input: -10 V to +10 V, Rin: 200 kΩ
Di󶍽erential input, input range: ±30 V
Sample interval per channel: 0.25 ms
Hardware 󶍾ltering: 0.25 ms
Resolution: 11 bit + sign bit
Accuracy: 1% full scale range
Cross sectional area: 0.5–2.5
mm
2
Use two 2-core twisted-pair
shielded cables when using
two-way AI.
Use one 4-core twisted pair
shielded cable for one-way
AI when reference voltage is
provided.
2 AI1+
3 AI2-
4 AI2+
5 +10V
+10 V: +10 V ± 1%
-10V: -10V ± 1%
Rload 1–10 kΩ
6 -10V
7 AGND
Jumper J14: AI1 current or voltage signal Input selection
1 2 3
I U
AI1 current signal Input by shorting 1 and 2
1 2 3
I U
AI1 voltage signal Input by shorting 2 and 3
Jumper J15: AI2 current and voltage signal selection
1 2 3
I U
AI2 current signal Input by shorting 1 and 2
1 2 3
I U
AI2 voltage signal Input by shorting 2 and 3