Lenze i700 Manual - Manual (Page 86)

Electrical installation
Important notes
Motor protection
6
l
86 EDS700ACBA EN 4.0
ƒ In case of condensation, do not connect the controller to the mains voltage before
the moisture has evaporated completely.
ƒ Provide unused control inputs and outputs with terminal strips.
6.1.3 Motor protection
ƒ Extensive protection against overload by means of temperature monitoring:
– with KTY or PTC sensors of the resolvers or encoders
– with activated I
2 t monitoring
– Combination of the possible monitoring modes
ƒ Only use motors which have a suitable insulation for the inverter operation:
– Insulation resistance: min. û = 1.5 kV, min. du/dt = 5 kV/
ms
– When using motors with an unknown insulation resistance, please contact your
motor supplier.
6.1.4 Interaction with compensation equipment
ƒ Drive control systems only consume very little fundamental reactive power from the
supplying AC system. Therefore, compensation is not required.
ƒ If the drive control systems are operated on supply systems by means of
compensation equipment, the compensation equipment must include chokes.
– For this purpose, please contact the supplier of the compensation equipment.