Leroy-Somer DIGIDRIVE SK, Getting Started Manual

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Digidrive SK Getting Started Guide
15
Issue Number: d www.leroy-somer.com
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4.3.2 Removing the internal EMC filter
Figure 4-3 Removal and re-fitting of internal EMC filter
4.3.3 Further EMC precautions
Further EMC precautions are required if more stringent EMC emission requirements apply:
•
Operation in the first environment of EN 61800-3
• Conformity to the generic emission standards
• Equipment which is sensitive to electrical interference operating nearby
In this case it is necessary to use:
•
The optional external EMC filter
• A screened motor cable, with screen clamped to the grounded metal panel
• A screened control cable, with screen clamped to the grounded metal panel
A full range of external EMC filters is also available for use with Digidrive SK.
4.4 Control terminals I/O specification
Internal
EMC filter
Tab fully inserted:
EMC filter fitted
Internal
EMC filter
B
Tab fully extended:
EMC filter disconnected
A
The control circuits are isolated from the power circuits in the drive by basic insulation
(single insulation) only. The installer must ensure that the external control circuits are
insulated from human contact by at least one layer of insulation (supplementary
insulation) rated for use at the AC supply voltage.
WARNING
If the control circuits are to be connected to other circuits classified as Safety Extra Low
Voltage (SELV) (e.g. to personal computer), an additional isolating barrier must be
included in order to maintain the SELV classification.
WARNING
The above warnings also apply to the PCB edge connector for the optional Solutions
Modules. To allow a Solutions Module to be fitted to Digidrive SK, a protective cover must
be removed to allow access to the PCB edge connector. See Figure 3-3 on page 11. This
protective cover provides protection from direct contact of the PCB edge connector by the
user. When this cover is removed and a Solutions Module fitted, the Solutions Module
provides the protection from direct contact by the user. If the Solutions Module is then
removed, this PCB edge connector becomes exposed. The user is required to provide
protection in this case, to protect against direct contact of this PCB edge connector.
WARNING