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B821–108 10–60 Vdc Input (True High), Specifications
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(Original Document)
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B821–108 10–60 Vdc Input (True High), Specifications
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(Original Document)
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B821–108 Specifications
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Description
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10—60 Vdc input module
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Type of Operation
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True high
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Number of Points
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8
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Operating Voltage
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10—60 Vdc
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Number of Groups
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4
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Inputs/group
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2
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On Level
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Input Voltage
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If the applied input voltage is ≥70% of the external power supply, the input to the controller is guaranteed to be in an ON logic state. However, to achieve satisfactory margin, the input voltage should be 75% of the supply voltage. Once the input to the controller is in the ON state, it remains ON as long as the input voltage is ≥60% of the power voltage.
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Input Current
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Supply Volt (Vdc)
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Input Volt (Vdc)
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Max Input Current (mA)
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10
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10
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10
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24
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24
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15
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48
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48
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25
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60
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60
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32
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OFF Level
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Input Voltage
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If the applied input voltage is ≤40% of the supply voltage, the input to the controller is guaranteed to be in an OFF logic state. However, to achieve satisfactory margin, the input voltage should be ≤25% of the supply voltage.
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Source Resistance
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Supply Volt (Vdc)
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Input Volt (Vdc)
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Max Source Resistance Ω)
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10
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10
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200
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60
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60
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500
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Maximum Input Voltage
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Continuous
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10—60 Vdc
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Maximum Response Time
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OFF→ON
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2.5 ms min, 11 ms max
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ON→OFF
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2.5 ms min, 11 ms max
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Power Required
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+5 V
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27 mA
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+4.3 V
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1 mA
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-5 V
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10 mA
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External Supply
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10—60 Vdc (excluding input current)
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External Supply Current/Group
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2 mA (max) @ 10 Vdc
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5 mA (max) @ 24 Vdc
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10 mA (max) @ 48 Vdc
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12 mA (max) @ 60 Vdc
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Terminal Connector
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AS-8534-000
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Reference Type
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Mapped as 8 bits input
1x
or
Mapped as 1 register input
3x
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Input Type
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BIN/BCD
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