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12 Fault Diagnosis and Possible Solutions

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YEU SIEP C710616 86A - AC Drive A1000 Option Powerlink - Technical Manual



SDO Abort Codes

SDO abort codes are supported as specified in DS301. Additionally the abort codes listed below are implemented.

Table 16 SDO Abort Codes



Drive-Side Error Codes

Drive-side error codes appear on the drive’s digital operator. Causes of the errors and corrective actions are listed in

Table 17

and

Table 8

. For

additional error codes, refer to the technical manual for the drive.
The bUS (Powerlink

Option Communication Error) and EF0 (External Fault Input from the Powerlink

Option) may appear as an alarm or a fault. If

they occur as an alarm, the “ALM” LED on the drive digital operator will blink and the alarm code will flash in the display. When these occur as a

fault, the “ALM” LED will light and the display will show the fault code.
If communication stops while the drive is running, check the following items:

• Is the Powerlink

Option properly installed?

• Is the communication line properly connected to the Powerlink

Option? Is it loose?

• Is the controller program working? Has the controller CPU stopped?

• Did a momentary power loss interrupt communications?



Faults

Table 17

lists possible faults when using a communication option. The drive’s fault contact will close if one of these faults occur.

Table 17 Fault Display and Possible Solutions

FF0E

External fault at input terminal S2

EF2

0x43

FF44

Mechanical weakening detection 1

oL5

0x44

FF45

Mechanical weakening detection 2

UL5

0x45

FF46

Current offset fault

CoF

0x46

FF47

Programming Error 1

PE1

0x47

FF49

Current offset fault

dWFL

0x49

6301

Error during object content selection

SDO Abort Code

Description

0602 0010 (Hex)

Consecutive MEMOBUS/Modbus Read/Write/Enter commands are sent but the wait time between messages is too short.
A MEMOBUS/Modbus Read or Write Response (2140 (Hex) and 2150 (Hex)) was attempted but no or an incorrect
MEMOBUS/Modbus address has been written to object 2040 (Hex) or 2050 (Hex) before.
A MEMOBUS/Modbus write request has been sent during DC bus under voltage.

0602 0022 (Hex)

Drive Profile DSP402 is used and a value is written to object 6042 (Hex) (vl Target Velocity) while the drive status is not
“Operation Enable”.
Object 2155 (Hex) is tried to be read while the SI-EL3 option is not in “Operational” state.
A MEMOBUS/Modbus Read or Write command (2040 (Hex) and 2050 (Hex)) was performed with an invalid MEMOBUS/
Modbus address.

Digital Operator Display

Fault Name

bUS

Powerlink

Option Communication Error

After establishing initial communication, the connection was lost.
Only detected when the run command or frequency reference is assigned to the option (b1-01=3 or b1-02=3).

Cause

Possible Solution

Master controller (PLC) has stopped communicating.

Check for faulty wiring.
Correct any wiring problems.

Communication cable is not connected properly.

A data error occurred due to noise.

Check the various options available to minimize the effects of noise.
Take steps to counteract noise in the control circuit wiring, main circuit lines, and ground wiring.
If a magnetic contactor is identified as a source of noise, install a surge absorber to the contactor coil.
Make sure the cable used fulfills the Powerlink

requirements. Ground the shield on the controller side and on the Powerlink

Option side.

Powerlink

Option is damaged.

If there are no problems with the wiring and the error continues to occur, replace the Powerlink

Option.

A Powerlink state transition from OP



PRE_OP_1 was made

when the drive was in OPERATION enabled.

Check and correct state machine transitions in control word.

Digital Operator Display