Using Intelligent Input Terminals
The two diagrams below show input wiring circuits using the inverter’s internal +24V supply. Each diagram shows the connection for simple switches, or for a field device with transistor outputs. Note that in the lower diagram, it is necessary to connect terminal [L] only when using the field device with transistors. Be sure to use the correct SR/SK switch position shown for each wiring diagram.
Sinking Inputs, Internal Supply
SR/SK switch = SK position
Open collector outputs,
NPN transistors
Input
SJ200
PCS |
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| SK |
| 24V |
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| SR | + | |||
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| SK |
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| SR |
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Field device
switches
1
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GND | Logic GND |
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1
Input
circuits
6
L
Operations and Monitoring
Sourcing Inputs, Internal Supply |
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| SJ200 |
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| SR/SK switch = SR position |
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| PNP transistor |
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| SK |
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| sourcing outputs |
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| Field device |
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| to PNP bias |
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| circuits |
| GND | Logic GND |
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L |
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