Function description
Operating Manual PSSu E F DI OZ 2(-T)(-R)
21328-EN-10
14
Output
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The head module sets the output status via the module bus.
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The max. capacity at an output depends on the load (see characteristic). Connecting a
higher capacity may lead to an error.
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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.
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Open circuit detection
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Cannot be used as a single-pole output
Test pulse output
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Test pulses can be switched on or off.
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Test pulses are switched on in the default setting.
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When test pulses are switched off, the periphery supply is constantly available at the
output.
Output test (not configurable)
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Outputs that are switched on are checked via regular off tests.
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Test pulses for outputs that are switched on: see technical details
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Outputs that are switched on are switched off for the duration of the test pulse.
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The load must not switch off because of the test.
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Outputs that are switched off are checked via regular on tests.
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Test pulses for outputs that are switched off: see technical details
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Outputs that are switched off are switched on for the duration of the test pulse.
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The load must not switch on because of the test.
Testing for shorts
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A test is regularly carried out to check for shorts between the outputs.
Open circuit detection
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The module will detect an open circuit between outputs O0+ and O0-.
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The result of open circuit detection is signalled to the head module via a virtual input.
The result is available within the user program:
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No open circuit detected: Status bit set
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Open circuit detected: Status bit not set
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Loads over 3 kOhm may mistakenly be detected as an open circuit.
