Lenze EPCZEBED - Handbuch (Seite 53)

Electrical installation
Important notes
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53 BA_DVIUSB DE/EN 5.0
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Stop!
No device protection against excessive input voltage
The voltage input is not fused internally.
Possible consequences:
ƒ The device can be destroyed when the input voltage is too high.
Protective measures:
ƒ Observe the max. permissible input voltage.
ƒ Professionally fuse the device on the input side against voltage
fluctuations and voltage peaks.
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Stop!
Short circuit and static discharge
The device contains components which are endangered in the case
of short circuit or static discharge.
Possible consequences:
ƒ The device or parts of it are destroyed.
Protective measures:
ƒ When working on the device, always switch off the voltage
supply (mains and a possibly mounted UPS). This particularly
applies to the following:
– Before opening the housing.
– Before connecting / removing connectors.
– Before plugging in / plugging out modules.
ƒ All persons handling printed circuit boards have to take account
of ESD measures.
ƒ Contacts of connectors may not be touched.
ƒ Printed circuit boards may be touched only at places free from
electrical contacts and may be placed only on appropriate
materials (e.g. on ESD packaging or conductive foam material).
ƒ Printed circuit boards may only be transported and stored in ESD
packaging.