Operation - Danfoss VLT Safety Option MCB 150 Installation Manual

Installation Guide | VLT® Safety Option MCB 150/151
UNEXPECTED BEHAVIOR
Modifying or changing hardware and/or software components can lead to unexpected behavior of the drive. This behavior
could result in death or serious injury.
Ensure that all protective equipment is closed before system start-up and activation of the drive.
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Keep personnel out of the danger zone.
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Carry out a partial or complete commissioning test (mandatory).
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Test the steady control response by briefly moving the drive in forward and reverse direction before allowing anybody to
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reenter the danger zone.
EN IEC 61508, EN IEC 62061 and EN ISO 13849 require that the final assembler of the machine validates the operation of the safety
function with a commissioning test. The commissioning tests for the standard safety functions Safe Stop of the drive are described in
the drive manuals. The tests for the optional safety functions are described in the commissioning report generated by the MCT 10 Safe
Plug-in. The commissioning test must be performed:
• At initial start-up of the safety function.
• After any changes related to the safety function (wiring, components, settings, and more).
• After any maintenance work related to the safety function.

5.3 Operation

UNINTENDED BEHAVIOR
Numerous stored data or settings control the behavior of the drive system. Unsuitable settings or data may trigger unexpected
movements or responses to signals and disable monitoring functions. Follow the instructions below to avoid risk of death,
serious injury, or equipment damage.
Do NOT operate the drive system with unknown settings or data.
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Verify that the stored data and settings are correct.
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When commissioning, carefully run tests for all operating states and potential error situations.
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Verify the functions after replacing the product and also after changing the settings or data.
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Only start the system if there are no persons or obstructions in the hazardous area.
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Prerequisites for normal operation are:
• Commissioning is complete.
• The safety option contains the configuration data.
• The safety functions have been tested.
• LED1, LED2, and LED4 are lit.
During operation:
• Any pulse edge change at the safety option safe input is monitored.
• The safety functions are performed in accordance with the configuration.
56 | Danfoss A/S © 2018.09
W A R N I N G
W A R N I N G
Commissioning
AQ279747441421en-000101 / 130R0292