Alarm Indications

In any mode, an alarm flashes alternately with the data displayed on the second row when one of the following conditions occurs. If no action is taken to eliminate alarms other than "Autotune," "Lt," and "PLC," the drive may eventually trip. Alarms flash once every 640ms, except for "PLC," which flashes once every 10 seconds. Alarms are not displayed while a parameter is being edited.
Alarm Indications (Table 13-4)

   br.rS (Braking Resistor Overload): The braking resistor I2t accumulator (Pr 10.39) in the drive has reached 75% of the value at which the drive will trip, and the braking IGBT is active.
   Hot (Overtemperature): The heatsink, control board, or inverter IGBT temperature alarm is active.
        The drive’s heatsink temperature has reached a critical threshold, and the drive will trip if the temperature continues to rise (refer to O.ht2 trip).
        The ambient temperature around the control PCB is approaching the overtemperature threshold (refer to the O.CtL trip).
   OVLd (Motor Overload): The motor I2t accumulator (Pr 4.19) in the drive has reached 75% of the value at which the drive will trip, and the load on the drive exceeds 100%.
   Auto tune (Autotune In Progress): The autotune process has been initiated, and "Auto" and "tunE" will flash alternately on the display.
   Lt (Limit Switch Active): A limit switch is active, and it is stopping the motor (e.g., forward limit switch active with forward reference).
   PLC (PLC Program Running): An onboard PLC program is installed and running. The lower display will flash "PLC" once every 10 seconds.

13.3 Status Indications
Status Indications (Table 13-5)

   ACt (Regeneration Mode Active): The regeneration unit is enabled and synchronized with the supply.
   ACUU (AC Supply Loss): The drive has detected a loss of the AC supply and is attempting to maintain the DC bus voltage by decelerating the motor.
   dc (DC Applied to Motor): The drive is applying DC injection braking to the motor.
   dEC (Decelerating): The drive is decelerating the motor.
   inh (Inhibited): The drive is disabled and cannot run. The enable signal is not applied to terminal 31, or Pr 6.15 is set to 0.
   POS (Positioning): The drive is positioning the motor shaft.
   rdY (Ready): The drive is ready to run.
   run (Running): The drive is running.
   SCAn (Scanning): The drive is enabled and synchronizing to the line.
   StoP (Stopped or Holding Zero Speed): The drive is holding zero speed.
   triP (Trip Condition): The drive has tripped and is no longer controlling the motor. The trip code appears on the lower display.

Solutions Module and SMARTCARD Status Indications (Table 13-6)

   boot (Booting): A parameter set is being transferred from the SMARTCARD to the drive during power-up.
   cArd (Writing to SMARTCARD): The drive is writing a parameter set to the SMARTCARD during power-up.
   loAding (Writing to Solutions Module): The drive is writing information to a Solutions Module.

Displaying the Trip History

The drive keeps a log of the last 10 trips in Pr 10.20 to Pr 10.29 and records the corresponding multi-module drive number (Pr 6.49 = 0) or the trip time (Pr 6.49 = 1) for each trip in Pr 10.41 to Pr 10.51. The trip time is based on the powered-up clock (if Pr 6.28 = 0) or the run-time clock (if Pr 6.28 = 1).

   Pr 10.20 shows the most recent trip, or the current trip if the drive is in a trip condition (with the module number or trip time stored in Pr 10.41 and Pr 10.42).
   Pr 10.29 shows the oldest trip (with the module number or trip time stored in Pr 10.51). Each time a new trip occurs, the parameters shift down by one, so the current trip (and time) is stored in Pr 10.20 (and Pr 10.41 to Pr 10.42), and the oldest trip is removed from the log.

If any parameter between Pr 10.20 and Pr 10.29 is read via serial communication, the trip number (Table 13-1 Trip Indications) is transmitted.

13.5 Behaviour of the Drive When Tripped

When the drive trips, its output is disabled, stopping motor control. If any trip occurs (except for the UV trip), the following read-only parameters are frozen until the trip is cleared. This helps diagnose the cause of the trip.

   Analog and digital I/O: The analog and digital I/O continue to function normally if a trip occurs, except the digital outputs will go low if specific trips occur, like O.Ld1 or PS.24V.

   Drive logic functions: Functions like PID, variable selectors, and threshold detectors continue operating when the drive is tripped.

   Onboard PLC program: The onboard PLC program continues running during a trip unless the trip is related to the PLC.

   Braking IGBT: The braking IGBT continues working even when the drive output is disabled (unless the low voltage DC supply is in use). It only stops if one of these trips occurs: OI.Br, PS, It.Br, OV, or any HFxx trip.