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FAULT MESSAGES

FAULT DESCRIPTION & POSSIBLE CAUSES

Ad A/D converter offset error - consult factory.

AF High Temperature Fault: Ambient temperature is too high; Cooling fan has failed (if equipped).

AL, A1-A4 Assertion level faults. Refer to section B.5 in Appendix B.

Personality Fault: The personality (P94) stored on the EPM does not match the drive

model. Refer to Section 13.2.

Control Fault: A blank EPM, or an EPM with corrupted data has been installed. Perform a

factory reset using Parameter 48 - PROGRAM SELECTION.

Incompatibility Fault: An EPM with an incompatible parameter version has been installed.

Either exchange the EPM, or perform a factory reset (Parameter 48) to change the

parameter version of the EPM to match the parameter version of the drive.

Dynamic Braking Fault: The drive has sensed that the dynamic braking resistors are

overheating and shuts down to protect the resistors.

External Fault: TB-13A, TB-13C, and/or TB-13D is set as an External Fault input and one

of those terminals is open with respect to TB-4. Refer to Parameters 10, 12, and/or 49.

GF Data Fault: User data and OEM defaults in the EPM are corrupted.

High DC Bus Voltage Fault: Line voltage is too high; Deceleration rate is too fast; Overhauling

load. For fast deceleration or overhauling loads, dynamic braking may be required.

Illegal Setup: TB-13A and TB-13D are both set for START FORWARD, or TB-13A is set

for RUN REVERSE and TB-13D is set for START FORWARD.

JF Serial Fault: The watchdog timer has timed out, indicating that the serial link has been lost.

LF Low DC Bus Voltage Fault: Line voltage is too low.

Output Transistor Fault: Phase to phase or phase to ground short circuit on the output;

Failed output transistor; Boost settings are too high; Acceleration rate is too fast.

Current Overload Fault: VFD is undersized for the application; Mechanical problem with

the driven equipment.

rF Flying Restart Fault: Drive was unable to synchronize with the motor during the restart attempt.

SF Single-phase Fault: Single-phase input power has been applied to a three-phase drive.

Start Fault: Start command was present when the drive was powered up. Must wait 2

seconds after power-up to apply Start command if START METHOD is set to NORMAL.

F1 EPM Fault: The EPM is missing or damaged.

F2 - F9, Fo Internal Faults: The control board has sensed a problem - consult factory.

To clear a fault issue a STOP command, either on the terminal strip or using the STOP button

on the optional remote keypad. The fault will only clear if the condition that caused the fault

has passed. For example, if the drive trips on a LOW DC BUS VOLTAGE FAULT (LF) due

to low input voltage, the fault cannot be cleared until the input voltage returns to a normal

level.

If the drive is programmed to automatically restart after a fault (Parameter 03), the drive

will attempt to restart three times after a fault (the drive will not restart after Ad, AL, A1-A4,

bF, CF, cF, GF, IL, F1, F2-F9, or Fo faults). If all three restart attempts are unsuccessful,

the drive will trip into FAULT LOCKOUT (LC), which requires a manual reset as described

above.

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Lenze TCF Series Manual de usuario Pagina 62

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