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Pilz PSSu K F FCU User Manual

Page 14

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Function description

Operating Manual PSSu K F FCU
1002391-EN-04

14

WARNING!
When wiring an output with capacitance it is essential to note the pulse du-
ration, repetition period and scan time of the power-up test, otherwise the
load may switch on unintentionally.

On and off test for single-pole outputs

t2

t1

t1

t3

t1

t

t3

t1

t

U

1

0

1

0

}

t

1

Pulse duration of on/off test (200 μs)

}

t

2

Cycle time of on/off test when test is repeated (approx. 4 ms)

}

t

3

Cycle time of on/off test in normal circumstances (approx. 2 ms)

On and off test for dual-pole outputs

}

t

1

Pulse duration of on test (1 ms) and off test (100 μs)

}

t

2

Waiting period in on/off test (approx. 4 ms)

}

t

3

Pulse duration of discharge voltage test (approx. 150 μs)

}

t

4

Cycle time of on/off test in normal circumstances (approx. 2 min)