4 function description, 1 module features, 1 functions – Pilz PSSu E F 2DO 2 User Manual
Page 13: Section 4, Function description, Module features, Functions, 4function description
Function description
Operating Manual PSSu E F 2DO 2(T)(R)
21322EN05
13
4
Function description
4.1
Module features
4.1.1
Functions
Module supply
}
The module supply provides the module with voltage.
Signals at the output
}
“0” signal (0 V) at the output:
}
Output is high impedance
–
No current to the load
}
“1” signal (+24 V) at the output:
}
Output is low impedance
–
Current is supplied to the load
Periphery supply
}
The module routes the periphery supply from the module bus to the base module ter
minals.
}
The periphery supply is used to supply the outputs.
Outputs
}
The head module sets the output status via the module bus.
}
The max. capacity at an output depends on the load (see characteristic). Connecting a
higher capacity may lead to an error.
}
Operation with electronic contactors has not been tested and may lead to errors.
Please contact our Customer Support team if you are using electronic contactors.
Output test
}
Outputs that are switched on are checked via regular off tests.
}
Test pulses for outputs that are switched on: see Technical Details
–
Outputs that are switched on are switched off for the duration of the test pulse.
–
The load must not switch off because of the test.
}
Outputs that are switched off are checked via regular on tests.
}
Test pulses for outputs that are switched off: see Technical Details
–
Outputs that are switched off are switched on for the duration of the test pulse.
–
The load must not switch on because of the test.
Excluding individual outputs from the output test:
}
If a plant is particularly sensitive to the test pulses, they may be switched off for indi
vidual outputs.
}
The test must be replaced by other measures, depending on the safety requirement.
}
When test pulses are switched off:
}
The correct switch status is always checked.