Lenze i550 Series - Residual Hazards

Residual hazards
Even if notes given are taken into consideraon and protecve measures are implemented, the occurrence
of residual risks cannot be fully prevented.
The user must take the residual hazards menoned into consideraon in the risk assessment for his/her
machine/system.
If the above is disregarded, this can lead to severe injuries to persons and damage to property!
Product
Observe the warning labels on the product!
Hot surface:
Use personal protecve equipment or wait unl the device has cooled down!
Dangerous electrical voltage:
Before working on the product, make sure there is no voltage applied to the power terminals!
Aer mains disconnecon, the power terminals will sll carry the hazardous electrical voltage for the me
given next to the symbol!
High leakage current:
Carry out xed installaon and PE connecon in compliance with:
EN 61800−5−1 / EN 60204−1
Electrostac sensive devices:
Before working on the product, the sta must ensure to be free of electrostac charge!
Motor protecon
With some sengs of the inverter, the connected motor can be overheated.
•
E. g. by longer operaon of self-venlated motors at low speed.
•
E. g. by longer operaon of the DC-injecon brake.
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°).
Degree of protecon - protecon of persons and device protecon
•
Informaon applies to the mounted and ready-for-use state.
•
Informaon does not apply to the wire range of the terminals.
-
Terminals that are not wired have low protecon against physical contact.
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Terminals for large cable cross-secons have lower classes of protecon, e. g. from 15 kW IP10 only.
Safety instrucons
Residual hazards
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