Safety instructions
Residual hazards
2-3
l
EDSVS9332S-A EN 3.0
2.2 Residual hazards
Protection of
persons
After mains voltage disconnection, the power terminals U, V, W and +U
G
,-U
G
carry hazardous voltages for at least
3 minutes.
• Before working on the controller, check that the power terminals are dead.
The leakage current against earth (PE) is > 3.5 mA. According to EN 50178
• a fixed installation is required.
• a double PE connection is required or, if in single design, it must have a cable cross-section of at least 10 mm
2
.
Protection of
devices
Cyclic connection and disconnection of the controller supply voltage at L1, L2, L3 or +UG, +UG may overload the internal
input current limitation:
• Allow at least 3 minutes between disconnection and reconnection.
Overspeed Drive systems can reach a dangerous overspeed (e.g. setting high field frequencies for motors and machines which are
not suitable):
• The controllers are not protected against those operating conditions. For this purpose use additional components.
Parameter set
transfer
During parameter set transfer, the control terminals of the 9300 controller can take on undefined states!
Therefore the plugs X5 and X6 must be disconnected from the controller before the transfer takes place. This ensures
that the controller is inhibited and all control terminals have the defined state ”LOW”.
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