WAGO-I/O-SYSTEM 750
Device Description
13
750-531 4DO 24V DC 0.5A/ 2-conductor
Manual
Version 1.3.0
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3
Device Description
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The 750-531 (4DO 24V DC 0.5A/ 2-conductor) Digital Output Module transmits
binary control signals from the automation device to the connected actuators (e.g.,
solenoid valves, contactors, transmitters, relays or other electrical loads).
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The module has four output channels. Four 2-conductor actuators may be directly
connected to the module.
The actuators can be connected using connection DO 1 or DO 2, DO 3, DO 4 and
0 V.
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The assignment of the connections is described in the “Connectors” section.
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Connection examples are shown in section “Connecting Devices” > … >
“Connection Example(s)”.
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Use field side connection modules!
Where required, use the appropriate field side connection modules for power
supply to the actuators.
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Limit all induced voltage!
The electronic components of the I/O module can be damaged by the induced
voltage produced when inductive loads are de-activated.
An appropriate protection circuit, e.g., a recovery diode, must be installed in
parallel to the load to limit this induced voltage.
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The output channels are electrically short-circuit-protected.
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The I/O module outputs provide high-side switching. If the signal status of an
output channel is at “high” the 24 V potential for field power will be switched to
the appropriate output connection.
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The supply voltage for the field side is derived from an adjacent supply module by
means of power jumper contacts.
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Provide for overload protection!
Overloading can damage the electronic components of the I/O module.
A fused supply module (750-601) must be installed upstream of the I/O module to
protect it against overloading!
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A green LED indicates the switched status of each channel.
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The meaning of the LEDs is described in the “Display Elements” section.
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