Technical information

36
Figure 6-4 Power Low Fault
Figure 6-4 shows a Power Low fault. After the fault occurrence, the
inverter had a DC Voltage High fault. In this case, the display added the
fault codes 0200 0000 plus 1000 0040 to become 1200 0040.
If the faults have the same rst digit (such as 1000 XXXX) the 1 remains
the same and only the second block of four numbers add to the original
fault code.
!
WARNING
These servicing instructions are for qualied personnel only. To
reduce the risk of electric shock, do not perform any servicing
other than that specied in the operating instructions unless you
are qualied.
!
AVERTISSEMENT
Les instructions d’entretien s’adressent au personnel qualié
seulement. An de réduire le risque de choc électrique, ne
pas effectuer d’entretien autre que ce qui est spécié dans les
instructions d’utilisation à moins que vous ne soyez qualié.
6.3 Fault Code Lists
Fault Code VFD Text Fault Description
8000 0000 Power Module
Generated by the power electronics to protect
the switching module.
4000 0000 Power Module
Generated by the power electronics to protect
the switching module.
1000 0800 PLL Fault
The inverter was unable to match the grid
frequency. This is usually caused by an
unstable power grid.
1000 0400 AC Voltage High
The grid voltage exceeded the limits in Table
4-3.
1000 0200 AC Voltage Low
The grid voltage dipped below the AC limits
in Table 4-3.