REVCON RLD B, Руководство по эксплуатации

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Appendix
Operating instructions RLD 115
ELTROPLAN
-
REVCON

Elektrotechnische Anlagen GmbH
9 Options
1. Fuse holder with fuses for mains supply
In accordance with table 3.3.3.1.1-5 for the power feedback unit the following
fuses are available:
REVCON
®
- type Order designation Case type
RLD 7 to RLD 135 SH SVC ZZZ-XXX A
RLD 140 to RLD 200 SH SVC ZZZ-XXX B
ZZZ ≅ rated power of the power feedback unit
XXX
≅
rated voltage of the power feedback unit
2. Option IFP (Current control)
The current (limiting) control of the power feedback unit is able to avoid overcurrent-
tripping of the unit caused by short time generator overload on the DC-bus.
Such an overload normally may one of these three reasons:
1. The power feedback unit is too small for the braking process. In this case even with cur-
rent control no uninterrupted operation is possible, if the controller doesn’t modify (auto-
matically or manually) the braking parameters.
2. Caused by torque peaks very short power peaks are generated (<<1s). With the help of
the current control a tripping of the power feedback unit is inhibited and the feedback cur-
rent is limited to the rated maximum value. For a short time the braking energy is stored in
the DC-bus capacitors of the controller. After the power-peak the level is reduced to a
„normal“ value. In the course of the
controlled operation the DC-bus voltage increases, as of the increased charge of the capaci-
tors.