F06311 — Infeed: Supply voltage (p0210) incorrect

F06311 is raised by the infeed when the line supply voltage does not match the nominal line voltage stored in p0210. Once precharging has completed, the drive calculates the actual line supply voltage (Vrms) from the measured DC link voltage. The fault is triggered when this calculated value does not lie within the extended tolerance range of the supply voltage set in p0210 — the manual defines that range as 75 % * p0210 < Vrms < 120 % * p0210. The message also covers the case where the nominal value entered in p0210 itself lies outside the nominal voltage range of the power unit. While the fault is active, the drive coasts down and must be acknowledged before it will start again.

• The nominal line voltage stored in p0210 lies outside the nominal voltage range of the power unit.
• After precharging was completed, the infeed calculated the actual line supply voltage Vrms from the measured DC link voltage, and this value does not lie within the extended tolerance range of the supply voltage set in p0210 (75 % * p0210 < Vrms < 120 % * p0210).

1. Check the parameterized supply voltage in p0210 and, if required, change it so that it matches the supply actually connected to the infeed.
2. Check the line supply voltage itself: the calculated Vrms has left the window around p0210, so establish whether the incoming supply is below 75 % or above 120 % of the setting, or whether p0210 was parameterized incorrectly in the first place.

• Message value: Line supply voltage: %1 — the drive inserts the line supply voltage Vrms it calculated from the measured DC link voltage.
• Alarm value: r2124 (floating point) — the drive stores the line supply voltage Vrms present when the message was raised.

• p0210 — Drive unit line supply voltage (U_connect): the nominal line voltage setting this fault is judged against; for F06311, compare it with the actual supply and correct it if it was set wrongly.
• r2124 — Alarm value: read out the line supply voltage Vrms the drive captured, stored as a floating-point value.

Remove the cause first — correct p0210 if it was set incorrectly, or restore the line supply voltage so that it lies within the tolerance window around p0210. The fault is then acknowledged; the manual specifies IMMEDIATELY, with POWER ON as the second acknowledgment option for this message. Once the fault has been acknowledged, the drive can be restarted.