Lenze i950 Series - Page 105

Protecon of the machine/system
Drives can reach dangerous overspeeds.
•
E. g. by seng high output frequencies in connecon with motors and machines not suitable for this
purpose.
•
The inverters do not provide protecon against such operang condions. For this purpose, use
addional components.
Switch contactors in the motor cable only if the controller is inhibited.
•
Switching while the inverter is enabled is only permissible if no monitoring funcons are acvated.
Motor
If there is a short circuit of two power transistors, a residual movement of up to 180°/number of pole pairs
can occur at the motor! (e. g. 4-pole motor: residual movement max. 180°/2 = 90°).
NOTICE
High input voltage at the device.
Destrucon of the device.
▶
Observe maximum permissible input voltage.
▶
Fuse device at the input against too high input voltage.
NOTICE
Short circuit at the device due to electrostac discharge.
Destrucon of the device.
▶
The personnel must be free of electrostac charge prior to working on the device.
Safety ins
trucons
Residual hazards
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