INT SC INFO The INT SC INFO Word includes information on the location of the SHORT CIRCUIT

04.02 INT SC INFO The INT SC INFO Word includes information on the location of the SHORT CIRCUIT

fault (see

03.05 FAULT WORD 1 and chapter Fault tracing ).

0 U-PH SC U

Phase U upper-leg IGBT(s) short circuit

1 U-PH SC L

Phase U lower-leg IGBT(s) short circuit

2 V-PH SC U

Phase V upper-leg IGBT(s) short circuit

3 V-PH SC L

Phase V lower-leg IGBT(s) short circuit

4 W-PH SC U

Phase W upper-leg IGBT(s) short circuit

Phase W lower-leg IGBT(s) short circuit 6...15

5 W-PH SC L

Reserved

Fault tracing

Chapter overview

The chapter lists all warning and fault messages including the possible cause and corrective actions.

Safety

WARNING! Only qualified electricians are allowed to maintain the drive. The Safety Instructions on the first pages of the appropriate hardware manual must be read before you start working with the drive.

Warning and fault indications

A warning or fault message on the panel display indicates abnormal drive status. Most warning and fault causes can be identified and corrected using this information. If not, an ABB representative should be contacted.

If the drive is operated with the control panel detached, the red LED in the panel mounting platform indicates the fault condition. (Note: Some drive types are not fitted with the LEDs as standard).

The four digit code number in brackets after the message is for the fieldbus communication. (See chapter Fieldbus control .)

How to reset

The drive can be reset either by pressing the keypad RESET key, by digital input or fieldbus, or switching the supply voltage off for a while. When the fault has been removed, the motor can be restarted.

Fault history

When a fault is detected, it is stored in the Fault History. The latest faults and warnings are stored together with the time stamp at which the event was detected.

The fault logger collects 64 of the latest faults. When the drive power is switched off,

16 of the latest faults are stored. See chapter Control panel for more information.

Warning messages generated by the drive

WARNING CAUSE

WHAT TO DO

ACS800 TEMP Drive IGBT temperature is excessive. Fault trip Check ambient conditions. (4210)

limit is 100%. Check air flow and fan operation.

3.08 AW 1 bit 4

Check heatsink fins for dust pick-up. Check motor power against unit power.

AI < MIN FUNC Analogue control signal is below minimum Check for proper analogue control signal (8110)

allowed value due to incorrect signal level or

levels.

failure in control wiring. Check control wiring. (programmable

3.09 AW 2 bit 10

Check Fault Function parameters. Fault Function

30.01 ) AD [message]

Message generated by an EVENT block in the Consult the documentation or author of the Adaptive Program.

Adaptive Program.

BACKUP USED PC stored backup of drive parameters is Wait until download is completed. (FFA3)

downloaded into use. BATT FAILURE

APBU branching unit memory backup battery With parallel connected inverters, enable (5581)

error caused by backup battery by setting actuator 6 of switch

3.18 AW 5 bit 15

- incorrect APBU switch S3 setting

S3 to ON.

- too low battery voltage. Replace backup battery. BC OVERHEAT

Brake chopper overload Stop drive. Let chopper cool down. (7114)

Check parameter settings of resistor overload

3.18 AW 5 bit 3

protection function (see parameter group 27 BRAKE CHOPPER ).

Check that braking cycle meets allowed limits. Check that drive supply AC voltage is not

excessive.

BRAKE ACKN

42 BRAKE CONTROL . (FF74)

Unexpected state of brake acknowledge signal See parameter group

Check connection of brake acknowledgement

3.16 AW 4 bit 3

signal.

BR OVERHEAT Brake resistor overload Stop drive. Let resistor cool down. (7112)

Check parameter settings of resistor overload

3.18 AW 5 bit 2

protection function (see parameter group 27 BRAKE CHOPPER ).

Check that braking cycle meets allowed limits. CALIBRA DONE

Calibration of output current transformers is Continue normal operation. (FF37)

completed. CALIBRA REQ

Calibration of output current transformers is Calibration starts automatically. Wait for a (FF36)

required. Displayed at start if drive is in scalar

while.

control (parameter 99.04 ) and scalar fly start feature is on (parameter 21.08 ).

WARNING CAUSE

WHAT TO DO

COMM MODULE Cyclical communication between drive and Check status of fieldbus communication. See (7510)

master is lost. chapter Fieldbus control , or appropriate

fieldbus adapter manual. (programmable

3.08 AW 1 bit 12

Check parameter settings: Fault Function

- group

51 COMM MODULE DATA (for fieldbus

adapter) - group