A49205 — Excitation: incorrect parameterization of the brushless exciter

A49205 reports that the brushless exciter has not been completely parameterized. Because a setting is missing, the drive cannot calculate the speed-dependent ratio of the exciter and assumes it to be 1. The alarm value identifies the parameter that has been assigned an illegal value, so the gap in the excitation data can be closed directly.

• The brushless exciter is not completely parameterized.
• Because the parameterization is incomplete, the speed-dependent ratio of the exciter cannot be calculated, and the drive assumes it to be 1.
• A parameter of the brushless excitation has been assigned an illegal value; the alarm value shows which one.

1. Read the alarm value in r2124 as a decimal number: it is the number of the parameter to which an illegal value has been assigned. The message value of the alarm names the same parameter.
2. Set the displayed parameter to a value other than 0.
3. Check the related brushless excitation parameters p0690, p0691, p0692, p0693, p0694, p0696, p0697 and p0698, together with the excitation configuration p0699, and complete every setting that is still missing so that the exciter data is complete.

• The message value contains the affected parameter (shown as "Parameter: %1").
• The alarm value in r2124 is not bit-encoded: interpreted as a decimal number, it is simply the parameter number that has been assigned an illegal value.

• r2124 — Alarm value: read the value here as a decimal number; it is the parameter number whose illegal value raised A49205.
• p0699 — Excitation configuration (Exc config): the excitation configuration referenced for this alarm; check it when completing the exciter data.
• p0690 — Brushless excitation rated current (BLE I_rated): part of the brushless excitation data named in the remedy.
• p0691 — Reverse field excitation correction factor (RFE correction): part of the brushless excitation data named in the remedy.
• p0692 — Reverse field excitation iron resistance (RFE iron R): part of the brushless excitation data named in the remedy.
• p0693 — Brushless excitation inductance d-axis saturated (BLE L_d sat): part of the brushless excitation data named in the remedy.
• p0694 — Reverse field excitation leakage inductance (RFE L_leak): part of the brushless excitation data named in the remedy.
• p0696 — Brushless excitation ratio (BLE ratio): part of the brushless excitation data named in the remedy.
• p0697 — Brushless excitation number of pole pairs (BLE PolePair no): part of the brushless excitation data named in the remedy.
• p0698 — Brushless excitation, excitation resistance (BLE exc_R): part of the brushless excitation data named in the remedy.

No acknowledgement is required for this alarm. The remedy is to set the parameter named in the alarm value (r2124, read as a decimal) to a value other than 0 and to complete the brushless exciter data — p0690, p0691, p0692, p0693, p0694, p0696, p0697 and p0698, plus the excitation configuration p0699.