14 Device Description
WAGO-I/O-SYSTEM 750 XTR
750-407/040-000 2DI 220V DC 3.0ms XTR
Manual
Version 1.3.0
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3
Device Description
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The digital input module 750-407/040-000 (2DI 220V DC 3.0ms XTR) receives
control signals from digital field (e.g. of sensors, transmitters, switches or
proximity switches).
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The I/O module has 2 input channels, providing a direct connection to 2-, 3- or 4-
wire sensors.
The sensors are connected to the following CAGE CLAMP
®
connectors: DI 1,
220 V, 0 V and ground, or DI 2, 220 V, 0 V and ground.
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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 “Connect Devices” > … >
“Connection Example(s)”.
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Each input channel has a RC noise rejection filter with a time constant of 3.0 ms.
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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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Only connect to I/O modules with the same field power supply!
The I/O module 750-407/040-000 requires a field supply not equal to 24 VDC.
Therefore, this I/O module 750-407/040-000 shall only be connected to modules
having the same field power supply.
If using an adjacent I/O module designed for another field power supply, place an
appropriate supply module between this adjacent module and the I/O module
750-407/040-000.
Failure to observe these instructions may result in damage to properties or
injuries to people.
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Use a 750-612/040-000 power supply!
For 220 VDC power on the field level, an additional 750-612/040-000 supply
module must be positioned before a terminal block 750-407/040-000 or before
I/O modules 750-407/040-000 arranged in blocks!
The I/O module receives the 220 VDC potential and the 0 V potential for the field
level from an upstream I/O module via the power contacts used as blade
contacts. It then provides this potential to subsequent I/O modules via the power
contacts used as spring contacts.
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