PNOZ s9
Operating Manual PNOZ s9
21401-EN-10
8
Disposal
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In safety-related applications, please comply with the mission time T
M
in the safety-re-
lated characteristic data.
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When decommissioning, please comply with local regulations regarding the disposal of
electronic devices (e.g. Electrical and Electronic Equipment Act).
For your safety
The unit meets all the necessary conditions for safe operation. However, please note the
following:
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Note for overvoltage category III: If voltages higher than low voltage (>50 VAC or >120
VDC) are present on the unit, connected control elements and sensors must have a
rated insulation voltage of at least 250 V.
Unit features
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Positive-guided relay outputs, either instantaneous, delay-on de-energisation
(also retriggerable), pulsing or delay-on energisation:
– 3 safety contacts
– 1 auxiliary contact
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Switch-on time, pulse time or delay-on de-energisation selectable with rotary switches
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LED indicator for:
– Supply voltage
– Input status, channel 1
– Input status, channel 2
– Switch status channel 1/2
– Start circuit
– Error
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Plug-in connection terminals (either spring-loaded terminal or screw terminal)
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See order reference for unit types
Safety features
The unit meets the following safety requirements:
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The unit monitors its own output contacts.
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The safety function remains effective in the case of a component failure.
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Earth fault in the feedback loop is detected.
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Earth fault in the input circuit:
The output relays de-energise and the safety contacts open.
