Velocity Edge GX440 Operations Instructions Page 54

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Electrical installation
4.6 Power connections
Drive converter cabinet units
54 Operating Instructions, 10/2008, A5E00288214A
Protective ground conductors
According to EN 61800-5-1, Section. 6.3.6.7, the minimum cross-section of the protective
ground conductor must conform to the local safety regulations for protective ground
conductors for equipment with a high leakage current.
4.6 Power connections
WARNING
Swapping the input and output terminals can destroy the device!
Swapping or short-circuiting the DC link terminals can destroy the device!
The contactor and relay operating coils that are connected to the same supply network as
the device or are located near the device must be connected to overvoltage limiters (e.g.
RC elements).
The device must not be operated via a residual current operated device (DIN VDE 0160).
4.6.1 Connection cross-sections and cable lengths
Connection cross-sections
The connection cross-sections for the line connection, motor connection, and ground
connection for your device are specified in the tables provided in the "Technical
specifications" section.
Cable lengths
The maximum permissible cable lengths are specified for standard cable types or cable
types recommended by SIEMENS. Longer cables can only be used after consultation.
The listed cable length represents the actual distance between the converter and the motor,
taking account factors such as parallel laying, current-carrying capacity, and the laying
factor.
Unshielded cable (e.g. Protodur NYY): max. 450 m
Shielded cable (e.g., Protodur NYCWY, Protoflex EMV 3 Plus): max. 300 m.
Note
The cable lengths specified are also valid if a motor choke is in use (option L08).
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