Operation; Status Indicators - Pilz PNOZ X9 Operating Manual

PNOZ X9

Operation

When the relay outputs are switched on, the mechanical contact on the relay cannot be
tested automatically. Depending on the operational environment, measures to detect the
non-opening of switching elements may be required under some circumstances.
When the product is used in accordance with the European Machinery Directive, a check
must be carried out to ensure that the safety contacts on the relay outputs open correctly.
Open the safety contacts (switch off output) and start the device again, so that the internal
diagnostics can check that the safety contacts open correctly
for SIL CL 3/PL e at least 1x per month
}
for SIL CL 2/PL d at least 1x per year
}

Status indicators

LEDs indicate the status and errors during operation:
Operating Manual PNOZ X9
19526-EN-09
NOTICE
The safety function should be checked after initial commissioning and each
time the plant/machine is changed. The safety functions may only be
checked by qualified personnel.
LED on
POWER
Supply voltage is present.
START
Start circuit is closed.
CH.1 IN
Channel 1 input circuit is closed.
CH.2 IN
Channel 2 input circuit is closed.
CH.1 OUT
Channel 1 safety contacts are closed.
CH.2 OUT
Channel 2 safety contacts are closed.
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