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Installing the Converter
3-5
590+ Series DC Digital Converter
AC Line Choke
We recommend that you always use the specified ac line choke with the Converter
to provide a known supply impedance for effective operation of the thyristor transient
suppression circuits. At least 1% line impedance should be provided in the supply side of the
converter.
Refer to Chapter 11: “Technical Specifications” - AC Line Choke for selection details.
Filtering
Note:
Refer to Chapter 12: "Certification for the Drive" - European Directives and the CE Mark.
For compliance in Europe with EN61800-3 Table 11:
x
The CE marking of drives whose armature current >100A is applicable without
filtering.
x
The CE marking of drives whose armature current <100A is
only
applicable with
filtering. The drive requires one of the following:
1.
The specified filter given in Chapter 11
(also refer to External AC Supply EMC Filter Installation, page 3-27)
2.
Compliant filtering offered by the System
3.
Capacitors fitted between phase and earth (see Figure 3-4)
Start
Contactor
AC
Line
Choke
Drive
C4
C1, C2 & C3
Suitable Branch
Protection Fuse
or
Circuit Breaker
PE
(must be
fitted)
Capacitor Reference Number
Capacitor Value/Type
C1, C2, C3
3.0
P
F 400V, EMI suppressor type Class X1
C4
1.0
P
F 400V, EMI suppressor type Class X1
Figure 3-4 AC Line Choke and Capacitors fitted to
Frame 1 (15A & 35A) & Frame 2 (40A & 70A) Drives