Further Emc Precautions; Control Terminals I/O Specification - Leroy-Somer Digidrive SK Serie Guía De Usuario

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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
Full instructions are given in the Digidrive SK EMC Guide.
A full range of external EMC filters is also available for use with Digidrive SK.
4.4

Control terminals I/O specification

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 55. This
protective cover provides protection from direct contact of the PCB edge connector by the
WARNING
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.
See Pr 05 on page 67 (Drive configuration) for terminal connection / set-up diagrams and
NOTE
details.
The digital inputs are positive logic only.
NOTE
The analog inputs are unipolar. For information on a bipolar input, see the Digidrive SK
NOTE
Advanced User Guide.
T1
0V common
T2
Analog input 1 (A1), either voltage or current (see Pr 16)
Voltage: Current input
Parameter range
Scaling
Input impedance
Resolution
Digidrive SK Getting Started Guide
Issue Number: a
English Deutsch Italiano
0 to 10V: mA as parameter range
4-20, 20-4, 0-20, 20-0, 4-.20, 20-.4, VoLT
Input range automatically scaled to Pr 01 Minimum set
speed / Pr 02 Maximum set speed
200Ω (current): 100kΩ (voltage)
0.1%
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