Lenze MC1000 Series Bedienungsanleitung PDF herunterladen (Seite 79)

13435742_EDBM101_v24 75

FAULT MESSAGES

FAULT DESCRIPTION POSSIBLE CAUSES

PWR SAG Power Sag fault:

Control board voltage is below

tolerance.

A new control board has been

installed that is dierent from the

previous version.

Erratic AC line.

Perform a factory reset using

Parameter 65-PROGRAM.

This will update the software

and allow the fault to be reset

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 the setting of Param-

eter 50 - TB13D.

Check setting of Parameter

50-TB 13D

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.

FOLLOWER Loss of Follower fault:

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

2 mA.

Parameter 55 - TB5B LOSS is

set to FAULT.

Blank display

or repeatedly

ashes

TESTING

(drive will not

run)

The power supply has shut down.

This can be the result of clogged or

failed heatsink fans.

Check heatsink fans (if

equipped).

Clear any obstructions. If they

are not clogged, contact the

Lenze AC Tech Service

Department.

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