Safety instructions
2
General safety and application notes for Lenze controllers
Electrical connection
When working on live controllers, observe the applicable national regulations
for the prevention of accidents (e.g. VBG 4).
The electrical installation must be carried out according to the appropriate
regulations (e.g. cable cross−sections, fuses, PE connection). Additional
information can be obtained from the documentation.
This documentation contains information on installation in compliance with
EMC (shielding, earthing, filter, and cables). These notes must also be observed
for CE−marked controllers. The manufacturer of the system is responsible for
compliance with the limit values demanded by EMC legislation. The controllers
must be installed in housings (e.g. control cabinets) to meet the limit values for
radio interferences valid at the site of installation. The housings must enable an
EMC−compliant installation. Observe in particular that e.g. the control cabinet
doors have a circumferential metal connection to the housing. Reduce housing
openings and cutouts to a minimum.
Lenze controllers may cause a DC current in the PE conductor. If a residual
current device (RCD) is used for protection against direct or indirect contact for
a controller with three−phase supply, only a residual current device (RCD) of type
B is permissible on the supply side of the controller. If the controller has a
single−phase supply, a residual current device (RCD) of type A is also permissible.
Apart from using a residual current device (RCD), other protective measures can
be taken as well, e.g. electrical isolation by double or reinforced insulation or
isolation from the supply system by means of a transformer.
Operation
If necessary, systems including controllers must be equipped with additional
monitoring and protection devices according to the valid safety regulations (e.g.
law on technical equipment, regulations for the prevention of accidents). The
controllers can be adapted to your application. Please observe the
corresponding information given in the documentation.
After the controller has been disconnected from the supply voltage, all live
components and power terminals must not be touched immediately because
capacitors can still be charged. Please observe the corresponding stickers on the
controller.
All protection covers and doors must be shut during operation.
Notes for UL−approved systems with integrated controllers: UL warnings are
notes that only apply to UL systems. The documentation contains special UL
notes.
Safety functions
Certain controller versions support safety functions (e.g. "Safe torque off",
formerly "Safe standstill") according to the requirements of the EC Directive
2006/42/EC (Machinery Directive). The notes on the integrated safety system
provided in this documentation must be observed.
l
79
EDKCSDX064 DE/EN/FR 3.0