Residual Hazards; Layout Of The Safety Information - Lenze 9300 Series Operator's Manual

1.3
1.4
Warning of danger
to persons
Warning of damage
to material
More information
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Residual hazards

Protection of After mains switch-off, the power terminals U, V, W and +U
persons
• Before working on the controller, check that no voltage is applied to the power terminals.
The discharge current to PE is > 3.5 mA. EN 50178
• requires a fixed installation.
• requires double PE connection or a minimum cable cross-section of 10 mm
Protection of Cyclic connection and disconnection of the controller supply voltage at L1, L2, L3 or +U
devices current input limitation:
• Allow at least 3 minutes between disconnection and reconnection.
Overspeeds
Drive systems can reach dangerous overspeeds (e.g. setting high field frequencies for motors and machines which are
not suitable):
• The controllers do not offer any protection against these operating conditions. Use additional components for this.
Parameter set During parameter set transfer, the control terminals of the 9300 controller can have undefined states!
transfer
Therefore the plugs X5 and X6 must be removed before transfer. Thus it is ensured that the controller is inhibited and all
control terminals have the defined state "LOW".

Layout of the safety information

All safety information given in these Operating Instructions have the same layout:
Signal word
(characterises the severity of danger)
Note (describes the danger and gives information how to avoid it)
Icons used
Warning of hazardous
electrical voltage
Warning of a general
danger
Residual hazards, Layout of the safety instructions
Signal words
Danger! Warns of impending danger.
Consequences if disregarded:
Death or most severe injuries
Warning! Warns of potential, very hazardous situations.
Possible consequences if disregarded:
Death or most severe injuries
Caution! Warns of potential, hazardous situations.
Possible consequences if disregarded:
Light or minor injuries
Stop! Warns of potential damage to material.
Possible consequences if disregarded:
Damage of the controller/drive system or its environment
Tip!
Designates a general, useful note.
If you observe it, handling of the controller/drive system is made easier.
Safety information
, -U remain live for at least three minutes.
DC DC
2
.
, +U can overload the
DC DC