9

Undervoltage

Vacon · NXP/C AC Drive

What does 9 mean?

The DC-link voltage has fallen below the voltage limits defined in Table 37. This is most likely caused by a low or interrupted supply voltage. Subcodes in T.14 (S1, S2, S3) can indicate if the DC-link was too low during run, no data was received from the power unit, or undervoltage control supervision tripped. A persistent undervoltage condition can prevent the drive from operating or restarting.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    If the supply voltage is confirmed adequate, an internal failure has likely occurred. Contact your local distributor.

Source: Vacon NXP/C AC Drive
Open Manual (Page 107)