A07926 — Drive: Envelope curve parameter invalid

A07926 signals that the envelope characteristic of the load monitoring has been parameterized with invalid values: the speed and torque thresholds no longer follow the required order, or the individual load torque monitoring areas overlap. The drive takes no automatic reaction to this alarm and no acknowledgement is needed. While the alarm is active, the load torque monitoring has not been activated.

• The envelope characteristic of the load monitoring contains invalid parameter values: the speed thresholds are not strictly increasing (rule: p2182 < p2183 < p2184).
• The torque thresholds are not strictly decreasing (rule: p2185 > p2186, p2187 > p2188, p2189 > p2190 — every upper threshold must be greater than its lower one).
• The load monitoring configuration and response do not match: it is not permissible that the individual load torque monitoring areas overlap.

1. Read the alarm value in r2124, interpreted as a decimal number: it is the number of the parameter that holds the invalid value.
2. Set the load monitoring parameters according to the applicable rules: p2182 < p2183 < p2184 for the speed thresholds, p2185 > p2186, p2187 > p2188 and p2189 > p2190 for the torque thresholds, and make sure the individual load torque monitoring areas do not overlap.
3. If necessary, deactivate the load monitoring instead: set p2181 = 0 and p2193 = 0.

• The alarm value identifies the offending parameter directly: interpreted as decimal in r2124, it is the number of the parameter with the invalid value.
• The message value is shown as “Parameter: %1”, where %1 stands for that parameter number.

• p2182 — Load monitoring velocity threshold 1: must be smaller than p2183.
• p2183 — Load monitoring velocity threshold 2: must lie between p2182 and p2184.
• p2184 — Load monitoring velocity threshold 3: must be greater than p2183.
• p2185 — Load monitoring force threshold 1 upper: must be greater than p2186.
• p2186 — Load monitoring force threshold 1 lower: must be smaller than p2185.
• p2187 — Load monitoring force threshold 2 upper: must be greater than p2188.
• p2188 — Load monitoring force threshold 2 lower: must be smaller than p2187.
• p2189 — Load monitoring force threshold 3 upper: must be greater than p2190.
• p2190 — Load monitoring force threshold 3 lower: must be smaller than p2189.
• p2181 — Load monitoring response: set to 0 together with p2193 to deactivate the load monitoring.
• p2193 — Load monitoring configuration: set to 0 together with p2181 to deactivate the load monitoring.
• r2124 — Alarm value: read as a decimal number here to find the parameter with the invalid value.

No acknowledgement is required. The drive does not perform an automatic stop because of this alarm; it clears itself once the cause is removed — that is, once the load monitoring parameters comply with the rules above, or the monitoring has been deactivated with p2181 = 0 and p2193 = 0. Keep in mind that the load torque monitoring stays inactive for as long as the alarm is present.