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          6. Specs

          Control Unit

          CU series

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          Model

          CU-21A

          CU-21TA

          Type

          Standard

          Multi-functional

          External calibration input signal

          Connection sensor

          NPN open-collector output type or type with output with contacts (signal input and synchronization input)

          Input

          No. of inputs

          2

          Minimum input time

          5 ms *1

          0.5 ms *3

          Input system

          Transistor (via NPN output device), contact (via limit switch/microswitch, etc.)

          Control output

          Relay output: 1c, 250 VAC, 2 A (resistive load)

          Relay output: 1c, 250 VAC, 2 A (resistive load)
          maximum NPN open-collector output: 100 mA (40 V or less)

          Timer

          ON-delay, OFF-delay, One-shot, timer OFF (selectable), 0 .05 to 1 s/0.5 to 10 s (selectable)

          Functions

          AND logic

          Input signal inversion, edge sync. / level sync. selectable, AND logic

          Operation mode

          Standard, synchronous

          Timer, standard, synchronous

          Control output

          Relay contact

          250 VAC 2A SPDT (1c) (resistive load)

          Transistor

          *2

          NPN: 100 mA (40 VDC) max. *4*2

          DC output

          12 VDC ±10%, 200 mA max.

          Rating

          Power voltage

          100 to 240 VAC ±10 %, 50/60 Hz

          Power consumption

          7 VA max.

          Environmental resistance

          Ambient temperature

          -10 to +50 °C 14 to 122 °F (No freezing)

          Relative humidity

          35 to 85 % RH (No condensation)

          Accessories

          Plastic screwdriver

          Weight

          Approx. 105 g

          Approx. 120 g

          *1 Required off time: 15 ms minimum.
          *2 NPN output can easily be converted to PNP output by connecting the optional OP-5148 PNP output converter.
          *3 Required off time: 1.5 ms minimum.
          *4 With overcurrent protective circuit.

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