3 residual hazards, Residual hazards, 2safety instructions – Lenze E94AYCDN User Manual
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Lenze · E94AYCDN communication module (DeviceNet™) · Communication Manual · DMS 5.0 EN · 02/2014 · TD17
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2
Safety instructions
2.2
Device and application-specific safety instructions
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2.2
Device and application-specific safety instructions
• During operation, the communication module must be firmly connected to the standard device.
• With external voltage supply, always use a separate power supply unit, safely separated in
accordance with EN 61800-5-1 in every control cabinet (SELV/PELV).
• Only use cables that meet the listed specifications.
Specification of the bus cable
• Connect a bus terminating resistor of 120 each to the first and last node of the DeviceNet line.
• Connect the shield at the voltage supply together with the "V-" connection to GND once. For this
purpose, use the centre point of the DeviceNet line, if possible.
• Connect the shield of the DeviceNet cable for each node only to the SHIELD connection of the
plug connector.
2.3
Residual hazards
Protection of persons
If Servo Drives 9400 are used on a phase earthed mains with a rated mains voltage of 400V,
protection against accidental contact is not ensured without external measures.
Device protection
The communication module contains electronic components which may be damaged or destroyed
by electrostatic discharge.
Documentation relating to the standard device, host (PLC, scanner), system/machine
All the other measures prescribed in this documentation must also be implemented.
Observe the safety instructions and application notes contained in this manual.