GB - 6
Preface
1.3 Copyright
The customer may use the instruction manual as well as further documents or parts from it for
internal purposes. Copyrights are with KEB and remain valid in its entirety.
All rights reserved.KEB®, COMBIVERT®, COMBICONTROL® and COMBIVIS® are regis-
tered trademarks of KEB Automation KG.
Other wordmarks or/and logos are trademarks (™) or registered trademarks (®) of their re-
spectiveownersandarelistedinthefootnoteontherstoccurrence.Whencreatingourdoc-
uments we pay attention with the utmost care to the rights of third parties.
Should we have not marked a trademark or breach a copyright, please inform us in order to
have the possibility of remedy.
1.4 Speciedapplication
The KEB COMBIVERT serves exclusively for stepless open loop / closed-loop speed control
of three-phase a.c. motors.
The operation of other electric consumers is prohibited and can lead to the de-
struction of the unit.
The used semiconductors and components of KEB are developed and dimensioned for the
use in industrial products. If the KEB COMBIVERT is used in machines, which work under
exceptional conditions or if essential functions, life-supporting measures or an extraordinary
safetystepmustbefullled,thenecessaryreliabilityandsecuritymustbeensuredbythe
machine builder. The operation of the KEB COMBIVERT outside the indicated limit values of
the technical data leads to the loss of any liability claims.
Units with safety function are limited to a service life of 20 years. After this time the units must
be replaced.
1.5 Product description
This instruction manual describes the power circuits of the following units:
Unit type: Frequency inverter
Series: COMBIVERT F5/F6
Power range:
55…90 kW / 230 V class
75…200 kW / 400 V class
Housing size: U
Features of the power circuits:
• only slight switching losses due to IGBT
• low noise development due to high switching frequency
• extensive safety device for current, voltage and temperature
• voltage and current monitoring in static and dynamic operation
• conditionally short circuit proof and earth-fault proof
• hardware current limit
• integrated cooling fan (air-cooled units)
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