KEB COMBIVERT R6 Instruction Manual page 13

Danger
The connection of COMBIVERT R6 is allowed to:
a) symmetrical mains with a voltage phase (L1, L2, L3) with respect to neutral conductor/
ground (N/PE) of maximum 305 V.
b) phase conductor grounded supply networks:
• the control system is no longer regarded as "safe isolated circuit", further protection
measures are required therefore (see "Safe isolation").
• with this type of power system, the max. voltage phase / earth must not exceed 528 V
absolute
• appropriate, external DC fuses at the DC connections are necessary for the 400 V class.
Use the COMBIVERT R6-N without internal DC fuses.
• Contact KEB regarding EMC filter.
Attention
The COMBIVERT R6 is designed for fixed connection, since discharge currents of > 3.5 mA
occur especially when using together with EMI filters. Therefore, the requirements or instruc-
tions from EN 60204-1 (VDE 0113) and EN 61800-5-1 (IEC 0160-5-1) must be observed.
Caution
When doing an insulation or voltage measurement in accordance with in EN 60204-1 /
VDE 0113-1, the power semiconductor of the unit and existing radio interference filters must
be disconnected because of the danger of destruction. This is permissible in compliance
with the standard, since all inverters are given a high voltage test in the end control at KEB.
In the case of special requirements please contact KEB.
Caution
When using components without isolated inputs/outputs, it is necessary that equipotential
bonding exists between the components to be connected (e.g. through the equalizer). Dis-
regard can cause destruction of the components by the equalizing currents.
Voltage with respect to ground
Fixed connection
Insulation measurement
Different earth potentials
Safety Instructions
13