LVD-EOMU02U-EN REVD 11/2022
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1. Safety instructions
These instructions are for all who install or connect an optional module to a drive, converter or inverter and need to open
its front cover or door to do the work.
WARNING! Obey these instructions. If you ignore them, injury or death, or damage to the
equipment can occur.
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If you are not a qualified electrician, do not do installation or maintenance work.
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Disconnect the drive, converter or inverter from all possible power sources. After you have disconnected the
drive, converter or inverter, always wait for 5 minutes to let the intermediate circuit capacitors discharge
before you continue.
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Disconnect all dangerous voltages connected to other control signal connectors in reach. For example, it is
possible that 120/230 V AC is connected from outside to a relay output of the drive, converter or inverter.
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Always use a multimeter to make sure that there are no parts under voltage in reach. The impedance of the
multimeter must be at least 1 Mohm.
Avoidance of electrostatic discharges
VFD-GATEWAY devices and equipment are sensitive to electrostatic discharge, which can cause internal damage
and affect normal operation.
Observe the following rules when handling the VFD-GATEWAY:
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Touch a grounded object to discharge potential static.
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Wear an approved grounding wrist strap.
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Do not touch connectors or pins on component boards.
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Do not touch circuit components inside the equipment.
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If available, use a static-safe workstation.
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When not in use, store the equipment in appropriate static-safe packaging.
VFD-GATEWAY
damage due to missing grounding
Ensure the VFD-GATEWAY is grounded.
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The ground (switch cabinet earthing, PE) is supplied both by the mains connection (or 24 V supply voltage) and
via the DIN rail (if mounted).
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The DIN rail must be connected to the ground before the device is subjected to any power. The ground may be
removed only if it is certain that no more power is being supplied to the control system.
