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Parker AC890 drive fault codes

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Comprehensive list of common fault codes for Parker AC890 series AC drives, including causes, troubleshooting steps, and safety considerations. Quickly diagnose and resolve drive issues to minimize downtime.

Parker AC890 drive fault codes

Below list shows fault codes and their solutions of Parker AC890 drive fault codes:

6511

Keypad Display

6901

Keypad Display

Description

Possible Reason for Trip

DCHI

OVERVOLTAGE

The drive internal dc link voltage is too high

¨    The supply voltage is too high

¨    Trying to decelerate a large inertia load too quickly

¨    The brake resistor is open circuit

DCLO

UNDERVOLTAGE

The drive internal dc link voltage is too low

¨    The supply voltage is too low

¨    The supply has been lost

¨    A supply phase is missing

OC

OVERCURRENT

The motor current being drawn from the drive is too high

¨    Trying to accelerate a large inertia load too quickly

¨    Trying to decelerate a large inertia load too quickly

¨    Application of shock load to motor

¨    Short circuit between motor phases

¨    Short circuit between motor phase and earth

¨    Motor output cables too long or too many parallel motors connected to the drive

¨    Fixed or auto boost levels are set too high

STO

SAFE TORQUE OFF

Safe Torque Off (STO) is active.

¨    One or both STO user inputs is low

¨    A fault has been detected in the STO circuit

HOT

HEATSINK

The drive heatsink temperature is too high

¨    The ambient air temperature is too high

¨    Poor ventilation or spacing between drives

ET

EXTERNAL TRIP

User trip caused via control terminals

¨ +24V not present on external trip (terminal X15/05)

¨    Check setting of EXT TRIP MODE parameter

IN 1

INPUT 1 BREAK

I/O TRIPS:: INPUT 1

BREAK has gone True

¨    Check configuration to determine source of signal

IN 2

INPUT 2 BREAK

I/O TRIPS:: INPUT 2

BREAK has gone True

¨    Check configuration to determine source of signal

STLL

MOTOR STALLED

The motor has stalled (not rotating)

¨    Motor loading too great

¨    Current limit level is set too low

¨    Stall trip duration is set too low

¨    Fixed or auto boost levels are set too high

IT

INVERSE TIME

 

¨    The inverse time current limit is active: motor loading is too great; fixed or auto boost levels are too high (Full Load Current = 150% for 60 seconds)

DB R

BRAKE RESISTOR

External dynamic braking resistor has been overloaded

¨    Trying to decelerate a large inertia load too quickly or too often

DB S

BRAKE SWITCH

Internal dynamic braking switch has been overloaded

¨    Trying to decelerate a large inertia load too quickly or too often

DISP

OP STATION

Keypad has been disconnected from drive whilst drive is running in local control

¨    Keypad accidentally disconnected from drive

SCI

COMMS BREAK

 

¨    COMMS BREAK parameter set to True (refer to I/O TRIPS menu at level 3)

CNTC

CONTACTOR FBK

 

¨    The CONTACTOR CLOSED input in the SEQUENCING LOGIC function block remained FALSE after a run command was issued

SPD

SPEED FEEDBACK

 

¨    SPEED ERROR > 50.00% for 10 seconds

AOT

AMBIENT TEMP

 

¨    The ambient temperature in the drive is too high

OT

MOTOR OVERTEMP

The motor temperature is too high

¨    Excessive load

¨    Motor voltage rating incorrect

¨    FIXED BOOST and/or AUTO BOOST set too high

¨    Prolonged operation of the motor at low speed without forced cooling

¨    Check setting of INVERT THERMIST parameter in I/O TRIPS menu at level 3.

¨    Break in motor thermistor connection

I HI

CURRENT LIMIT

V/Hz mode only: If the current exceeds 180% of induction stack rated current for a period of 1 second, the drive will trip. This is caused by shock loads

¨    Remove the cause of the shock load

A24SC

24V FAILURE

The 24V customer output has fallen below 17V

¨    24V customer output is short circuited

¨    Excessive loading

LSPD

LOW SPEED OVER I

The motor is drawing too much current (>100%) at zero output frequency

¨    FIXED BOOST and/or AUTO BOOST set too high (refer to FLUXING menu at level 3)

PHAS

PHASE FAIL

 

¨    One or more input phases not present

ENC 1

FBK ENCODER FAIL

 

¨    Encoder fault

SHRT

DESAT (OVER I)

 

¨    Instantaneous overcurrent. Refer to OVERCURRENT in this table

DCRP

VDC RIPPLE

 

¨    The dc link ripple voltage is too high. Check for a missing input phase.

DBSC

BRAKE SHORT CCT

Brake resistor overcurrent

¨    Check brake resistance is not less than minimum value allowed

¨    check wiring and brake resistor for earth faults

OSPD

OVERSPEED

 

¨    Speed feedback > 150% for 0.1 seconds

ANIN

ANALOG INPUT ERR

 

¨    4-20mA analog input current > 22mA could damage the input circuit

DBCT

INT DB RESISTOR

¨    Braking mode set to INTERNAL (future use only). Set to EXTERNAL and connect an External Braking Resistor if braking is required.

TRIP

UNKNOWN

¨    An unknown trip - refer to Parker Hannifin Manufacturing

TR32

OTHER

¨    Refer to OTHER in Appendix D: TRIPS STATUS. One or more trips have occurred with a Value greater than 32. See the list.

ATN1

MAX SPEED LOW

¨    During Autotune the motor is required to run at the nameplate speed o f the motor. If MAX SPEED RPM limits the speed to less than this value, an error will be reported. Increase the value of MAX SPEED RPM up to the nameplate rpm of the motor (as a minimum). It may be reduced, if required, after the Autotune is complete.

ATN2

MAINS VOLTS LOW

¨    The mains input voltage is not sufficient to carry out the Autotune. Re-try when the mains have recovered.

ATN 3

NOT AT SPEED

¨    The motor was unable to reach the required speed to carry out the Autotune. Possible reasons include: motor shaft not free to turn; the motor data is incorrect

ATN4

MAG CURRENT FAIL

¨    It was not possible to find a suitable value of magnetising current to achieve the required operating condition for the motor. Check the motor data is correct, especially nameplate rpm and motor volts. Also check that the motor is correctly rated for the drive.

ATN5

NEGATIVE SLIP F

¨    Autotune has calculated a negative slip frequency, which is not valid. Nameplate rpm may have been set to a value higher than the base speed of the motor. Check nameplate rpm, base frequency, and pole pairs are correct.

ATN6

TR TOO LARGE

¨    The calculated value of rotor time constant is too large. Check the value of nameplate rpm.

ATN7

TR TOO SMALL

¨    The calculated value of rotor time constant is too small. Check the value of nameplate rpm.

ATN8

MAX RPM DATA ERR

¨    This error is reported when the MAX SPEED RPM is set to a value outside the range for which Autotune has gathered data. Autotune gathers data on the motor characteristics up to 30% beyond “max speed rpm”. If MAX SPEED RPM is later increased beyond this range, the drive had no data for this new operating area, and so will report an error. To run the motor beyond this point it is necessary to re-autotune with MAX SPEED RPM set to a higher value.

STAC

STACK TRIP

¨    The drive was unable to distinguish between an overcurrent/desat or overvoltage trip

ATNA

LEAKGE L TIMEOUT

¨    The leakage inductance measurement requires a test current to be inserted into the motor. It has not been possible to achieve the required level of current. Check that the motor is wired correctly.

PLOS

POWER LOSS STOP

¨    Power Loss Stop sequence has ramped Speed Setpoint to zero or timed out

ATNC

MOTR TURNING ERR

¨    The motor must be stationary when starting the Autotune

ATND

MOTR STALLED ERR

 

¨    The motor must be able to rotate during Autotune

ATNE

AT TORQ LIM ERR

 

¨    The motor is in torque limit during Autotune

ECAL

FBK ENCODR CAL

The drive has failed to set absolute position

¨    Check the encoder supports absolute position, and that the encoder is wired correctly.

GEAR

OUTPUT GBX ERROR

 

¨    A non-unity output gearbox is not supported if the encoder direction is reversed.

APP

APP HALTED

 

¨    The application has been halted by the DSE Configuration Tool

AERR

APP ERROR

 

¨    The application has ceased execution due to an error

FERR

FIRMWARE ERROR

 

¨    The firmware in the drive has stopped executing

 

 

RSLV

 

 

RESOLVER ERROR

 

 

See function block description

¨    Resolver disconnected

¨    Resolver incorrectly wired

¨    Resolver not compatible with resolver feedback option board

¨    Resolver length cable too long

¨    Incorrect Resolver Function Block settings

MI2T

I2T MOTOR TRIP

See function block description

¨    Motor is undersized

STO

SAFE TORQUE OFF

-

¨    The safe torque off feature has been activated. See Chapter 6, STO Trip Annunciation.

REFC

REF ENCODER CAL

The drive has failed to set absolute position

¨    Check the encoder supports absolute position, and that the encoder is wired correctly.

REFF

REF ENCODER FAIL

-

¨    Function not implemented

DCFG

DRIVE CONFIG ERR

Drive configuration error

¨    The configuration defined in DRIVE CONFIG doesn't match the actual drive configuration.

CT1

CUST TRIP 1

See function block description

 

CT2

CUST TRIP 2

See function block description

 

CT3

CUST TRIP 3

See function block description

 

CT4

CUST TRIP 4

See function block description

 

CT5

CUST TRIP 5

See function block description

 

CT6

CUST TRIP 6

See function block description

 

CT7

CUST TRIP 7

See function block description

 

 

DCHI

 

OVERVOLTAGE

The shared dc link voltage is too high

The supply voltage is too high

Trying to decelerate a large inertia load too quickly The brake resistor is open circuit

OC

OVERCURRENT

The current being drawn from the drive is too high

 

HOT

HEATSINK

The heatsink temperature is too high

 

 

IT

 

INVERSE TIME

High output current for prolonged period, (warning only)

 

 

DISP

 

DISPLAY / KEYPAD

Keypad has been disconnected from drive whilst drive is running in local control

 

Loose connection to display

SCI

LOST COMMS

Not used

 

T   6

24V FAILURE

The 24V customer output has fallen below 17V

 

T   4

VOLTS SEL SWITCH

Failure to read voltage selector switch

May be caused by excessive loading on ANOUT

PHAS

PHASE LOSS

 

 

CHRG

CHARGING

Failed to charge DC link

Excessive capacitance on DC link

Short circuit on DC link

DCRP

VDC RIPPLE

Excessive DC link ripple

Driving a reciprocating load

AOUT

ANOUT FAULT

Overload on analog output

 

VOLT

VOLTS SELECTION

Invalid position on volts selector switch

 

 

ENCI

 

ENC NEEDS INIT

PMAC motor used with a relative encoder – Needs to run init once per power cycle

Relative encoder needs to be aligned with the motor back EMF. Use MOT POLARISATION feature to align

COMMS FAULT

CODE N

The drive has not responded to a message from the 6901

Drive CPU busy.

COMMS FAULT

CODE C

Incorrect reply from drive following a selection (command) message from the 6901

 

COMMS FAULT

CODE P

Parity error in message received from the drive by the 6901

 

COMMS FAULT

CODE F

Format of message received from the drive by the 6901 is incorrect

Unexpected, due to electrical interference

 

BCC (block check character) in message received from the drive by the 6901 is incorrect

COMMS FAULT CODE B

 

COMMS FAULT

CODE L

Length of message received from the drive by the 6901 is incorrect (too many characters)

 

 

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