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1485
Exeter Dr., Akron, OH 44306
ph 330-733-6662 | fx 330-733-6663
products: sales@wrcakron.com
technical support: support@wrcakron.com
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1781, Classic & WRC4 Series Single-point DC Input Discrete
I/O Modules
(download
this web page as a .pdf* catalog page)
1781 DC input

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WRC4 DC input

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General specifications
Operating temperature range –30 to +80°C
Storage temperature range –40 to +100°C
Isolation 4,000 V rms
Capacitance input to output 8 pF
Application notes
- Do not install or remove modules in live (electrically
hot) circuits. High voltage may be present.
- Input connections are polarized according to diagram
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DC input module specifications by part number
INPUT: 1781 SLIM
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1781-IB5S
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1781-IBYS
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1781-IBXS
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1781-IT5S
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1781-ITYS
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1781-ITXS
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Units
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INPUT: 1781 MINI
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1781-IB5M
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1781-IBYM
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1781-IBXM
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1781-IT5M
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1781-ITYM
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1781-ITXS
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INPUT: WRC4
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WRC4-IB5S
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WRC4-IBYS
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WRC4-IBXS
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WRC4-IT5S
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WRC4-ITYS
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WRC4-ITXS
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INPUT: CLASSIC
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IDC5D
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IDC15D
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IDC24D
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IDC5K
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| Nominal Input Voltage |
24 |
24 |
24 |
24 |
24 |
24 |
V dc |
| Minimum Input Voltage |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
3.3 |
V dc |
| Maximum Input Voltage |
32 |
32 |
32 |
32 |
32 |
32 |
V dc |
| Nominal Input Resistance |
1K |
1K |
1K |
1K |
1K |
1K |
ohm |
| Maximum Input Current |
32 |
32 |
32 |
32 |
32 |
32 |
mA dc |
| Drop Out Current |
1 |
1 |
1 |
1 |
1 |
1 |
mA dc |
| Allowable Off-state Current |
1 |
1 |
1 |
1 |
1 |
1 |
mA dc |
| Allowable Off-state Voltage |
2 |
2 |
2 |
2 |
2 |
2 |
V dc |
OUTPUT
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| Nominal Logic Voltage |
5 |
15 |
24 |
5 |
15 |
24 |
V dc |
| Min Logic Voltage - WRC4 |
3 |
10 |
18 |
3 |
10 |
18 |
V dc |
| Min Logic Voltage - 1781 |
1.5 |
8.5 |
16.5 |
1.5 |
8.5 |
16.5 |
V dc |
| Max Logic Voltage - WRC4 |
7 |
20 |
32 |
7 |
20 |
32 |
V dc |
| Max Logic Voltage - 1781 |
6 |
19 |
30.5 |
6 |
19 |
30.5 |
V dc |
| Typical Logic Supply Current |
10 |
10 |
10 |
10 |
10 |
10 |
mA dc |
| Max Logic Supply Current |
18.5 |
16 |
14 |
18.5 |
16 |
14 |
mA dc |
| Max Logic Supply Leakage Cur. |
10 |
10 |
10 |
10 |
10 |
10 |
µA dc |
| Maximum Output Voltage |
30 |
30 |
30 |
30 |
30 |
30 |
V dc |
| Maximum Output Current |
50 |
50 |
50 |
50 |
50 |
50 |
mA dc |
| Max Output Leakage Current |
10 |
10 |
10 |
10 |
10 |
10 |
µA dc |
| Max Output Voltage Drop |
200 |
200 |
200 |
200 |
200 |
200 |
mV dc |
| Maximum Turn-on Time |
300 |
300 |
300 |
30 |
30 |
30 |
µsec |
| Maximum Turn-off Time |
600 |
600 |
600 |
60 |
60 |
60 |
µsec |
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