Lenze MCH Series Manual do Utilizador descarregar pdf (Página 81)

13435744_EDBMH01_v13 77

FAULT MESSAGES

FAULT DESCRIPTION POSSIBLE CAUSES

LANGUAGE Language fault:

Selected language not present

Defective language EEPROM.

Language EEPROM (U11)

removed after programming.

EXTERNAL External fault:

TB-13D is open or closed to TB-2,

depending on setting of Parameter

50 - TB13D

Check setting of Parameter 50.

Check devices wired between

TB13D and TB-2.

DB ERROR Dynamic Brake fault:

DB circuit has sensed a resistor

overload.

The DB duty cycle is too high,

causing the resistors to overheat.

CONTROL Control Board fault:

New software has been installed

that is dierent from the previous

version.

Perform a factory reset using

Parameter 65-PROGRAM.

This will update the software

and allow the fault to be reset.

INTERNAL

INTERN (#)

Internal fault:

The micro-processor has sensed a

problem.

Electrical noise on control wiring.

Defective microprocessor.

FLWR / SER Loss of Follower /

Loss of Serial fault:

4-20 mA signal at TB-5B is below

2 mA, or if serial control, serial link

was lost.

Parameter 55 - TB5B LOSS is

set to FAULT.

Parameter 56 - SERIAL LOSS is

set to FAULT.

Blank Display

or

repeatedly

ashes

TESTING

Power supply has shut down.

This can be the result of clogged or

failed heatsink fans.

Check heatsink fans (if drive is

equipped with them).

Clear any obstructions.

If heatsinks are not clogged,

contact the Lenze AC Tech Service

Department.

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