Cooling Circuit; Fault Correction; Disposal; A.4.3 Cooling Circuit - KEB COMBIVERT F5 Instruction Manual

Storage period < 1 year
• Start-up without special measures
Storage period 1...2 years
• Operate frequency inverter one hour without modulation
Storage period 2...3 years
• Remove all cables from the power circuit; especially of braking resistor or module
• Open control release
• Connect variable transformer to inverter input
• Increase variable transformer slowly to indicated input voltage (>1 min) and remain at
least on the specified time.
Storage period > 3 years
• Input voltages as before, however double the times per year. Eventually change capac-
itors.
After expiration of this start-up the KEB COMBIVERT can be operated on nominal rating con-
ditions or delivered to a new storage.
A.4.3

Cooling circuit

The cooling circuit must be completely empty if a unit shall be switched off for a longer period.
The cooling circuit must be blown out additionally with compressed air at temperatures below
0°C.
A.4.4

Fault correction

A defective device should only be repaired by KEB or an authorized partner. Defective com-
ponents, modules or options may only be replaced by original parts. The device must be
returned in original packaging with a detailed bug report.
A.4.5

Disposal

Defective devices which should not be repaired or which are not safe because of their service
life are applied as electronic waste and must be disposed as hazardous waste according to
the local regulations.
Voltage class
230 V
400 V
Input voltage
0...160 V
160...220 V
220...260 V
0...280 V
280...400 V
400...500 V
Annex A
Residence time
15 min
15 min
1 h
15 min
15 min
1 h
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