Device Description - WAGO I/O System 750 Manual

16

Device Description

3 Device Description
The 750-537 (8DO 24V DC 0.5A, diagnostics) Digital Output Module transmits
binary control signals from the automation device to the connected actuators
(e.g., solenoid valves, contactors, transmitters or other electrical loads).
These output modules can recognize a short circuit to ground, a line break and
an overload in either channel.
The module has eight output channels. Eight 1-conductor actuators may be
directly connected to the module. The actuators can be connected using
connection DO 1 ... DO 8.
Use field side connection modules!
Where required, use the appropriate field side connection modules for power
supply to the actuators.
The assignment of the connections is described in the "Connectors" section.
Connection examples are shown in section "Connect Devices" > ... >
"Connection Example(s)".
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.
The output channels are electrically short-circuit-protected.
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.
The supply voltage for the field side is derived from an adjacent supply module
by means of power jumper contacts.
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!
The status of the two output channels is indicated via green status LEDs. A color
change to red signals an open circuit, overload or a short circuit.
The meaning of the LEDs is described in the "Display Elements" section.
Manual
Version 1.2.0
WAGO I/O System 750
750-537 8DO 24V DC 0.5A, diagnostics