Spectrum-controls 1746sc-OAP8I Manuel d'utilisateur télécharger pdf (Page 9)

Installation Instructions

Isolated-Circuit

Discrete Input and Output Modules

1746sc-IB8I Specifications

Number of Inputs 8, sink or source

Points per Common 1 (individually isolated)

Voltage Category 24 Vdc

Operating Voltage ±11.5 to 32 Vdc

Nominal Input Current 12 mA @ 24 Vdc

Input Signal Delay (maximum)

Off to On 0.5 ms @ 24 Vac

On to Off 1 ms @ 24 Vac

Off-State Current (maximum) 1.8 mA @ 4.5 Vac

➀

Power Dissipation (maximum) 6.6 W @ 240 Vac/dc

Watts per point

➁

0.4 W @ 24 Vdc; 0.6 W @ 32 Vdc

Total Watts

➂

3 W @ 24 Vdc; 4.8 W @ 32 Vdc

Backplane CurrentDraw (max.) 5 V 0.110 A

24 V 0.0 A

➀

Maximum allowable leakage current from an input device in an off state.

➁

Maximum with 1input turned on.

➂

Maximum with all 8 inputs turned on (100% duty cycle).

1746sc-IB8I On-Off-State Voltage Range

0 Vdc 4.5 Vdc 11.5 Vdc 32 Vdc

Off-State Input State Not Guaranteed On-State

1746sc-IB8I Circuit Diagram (one circuit shown)

IN –

VDC +

1.91 Ω

1.91 kΩ

3.16 kΩ

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 26 27

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Spectrum-controls 1746sc-OAP8I Manuel d'utilisateur Page 9