Yaskawa 1000 Series Drive Option - MECHATROLINK-II Technical Manual - Manual (Page 36)

9 Troubleshooting
36 YASKAWA ELECTRIC SIEP C730600 50A YASKAWA AC Drive-Option Card MECHATROLINK-II Technical Manual
‹ Drive-Side Error Codes
Drive-side error codes appear on the drive’s operator. Causes of the errors and corrective actions are listed in Table 28 .
For additional error codes that may appear on the operator screen, refer to the technical manual for the drive the
MECHATROLINK-II Option is connected to.
„ Faults
Both bUS (MECHATROLINK-II Option Communication Error), EF0 (External Fault Input from the
MECHATROLINK-II Option) and E5 (SI-T3 Watchdog Timer Error) can appear as an alarm or as a fault. When a fault
occurs, the digital operator ALM LED remains. When an alarm occurs, the digital operator ALM LED flashes.
If communication stops while the drive is running, answer the following questions to help remedy the fault:
• Is the MECHATROLINK-II Option properly installed?
• Is the communication line properly connected to the MECHATROLINK-II Option? Is it loose?
• Is the PLC program working? Has the PLC CPU stopped?
• Did a momentary power loss interrupt communications?
Table 28 Fault Display and Possible Solutions
Operator Display Fault Name
bUS
MECHATROLINK-II 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 (b1-03 =
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.
⇒ Use cables specified.
MECHATROLINK-II Option is damaged.
⇒ If there are no problems with the wiring and the error continues to occur, replace the
MECHATROLINK-II Option.
Operator Display Fault Name
E5
SI-T3 Watchdog Timer Error
The watchdog has timed out.
Cause Possible Solution
Data has not been received from the PLC,
triggering the watchdog timer. ⇒ Execute DISCONNECT or ALM_CLR, then issue a CONNECT command or SYNC_SET
command and proceed to phase 3.
Operator Display Fault Name
EF0
External Fault Input from MECHATROLINK-II Option
The alarm function for an external device has been triggered.
Cause Possible Solution
An external fault is being sent from the master
controller (PLC). ⇒ Remove the cause of the external fault.
⇒ Reset the external fault input from the PLC device.
Problem with the PLC program ⇒ Check the program used by the PLC and make the appropriate corrections.
Operator Display Fault Name
oFA00
MECHATROLINK-II Option Fault (CN5-A)
MECHATROLINK-II Option is not properly connected.
Cause Possible Solution
Non-compatible option connected to the drive ⇒ Connect an option that is compatible with the drive.
Operator Display Fault Name
oFA01
MECHATROLINK-II Option Fault (CN5-A)
MECHATROLINK-II Option is not properly connected.
Cause Possible Solution
Problem with the connectors between the drive
and MECHATROLINK-II Option ⇒ Turn the power off and check the connectors between the drive and MECHATROLINK-II
Option.