YASKAWA SI-S3 Technical Manual page 51

3.
Set drive parameter A1-03 to the desired initialization mode.
For example, in order to perform a "2-Wire Initialization", write "08AC" (Hex.) (2220) to MEMOBUS/
Modbus register 0103 (Hex.).
4.
Finish the initialization by sending an Unlimited Enter Command (object 2060 (Hex.)).
12 Troubleshooting
◆
Option Error Codes
Refer to Table 8.1 for more information about option error codes.
◆
Drive-Side Error Codes
Drive-side error codes appear on the drive keypad. The table below lists causes of the errors and possible
corrective actions. Refer to the drive Technical Manual for additional error codes that may appear on the drive
keypad.
■
Faults
Both bUS [Option Communication Error] and EF0 [Option Card External Fault] can appear as a fault. When a
fault occurs, the digital characters shown on the keypad does not flash but stay lit. The keypad ALM LED also
stays lit. When an alarm occurs, the ALM LED flashes.
If communication stops while the drive is running, answer these questions to help fix the problem:
• Is the drive properly connected to the option?
• Is the communication line properly connected to the option? Is it loose?
• Is the PLC program working? Is the controller/PLC CPU stopped?
• Did a momentary power loss interrupt communications?
Code Name
bUS Option Communication Error
EF0 Option Card External Fault
oFA00 Option Not Compatible with Port
oFA01 Option Card Fault (CN5-A)
oFA03, oFA04 Option Card Error (CN5-A)
YASKAWA SIEP C730600 85D CANopen Technical Manual
Causes
The drive did not receive a signal from the
controller.
The communications cable wiring is incorrect.
An existing short circuit or communications
disconnection
A data error occurred due to electric interference
Option is damaged
Connection Time-out
The option received an external fault from the
controller.
A programming error occurred on the controller
side.
The option connected to connector CN5-A is not
compatible.
The option connected to option port CN5-A was
changed during run.
A fault occurred in the option.
12 Troubleshooting
Possible Solutions
• Check for wiring errors.
• Correct the wiring.
Check disconnected cables and short circuits and repair as needed
• Prevent noise in the control circuit, main circuit, and ground
wiring.
• If you identify a magnetic contactor as a source of noise,
install a surge absorber to the contactor coil.
• Use only recommended cables or other shielded line. Ground
the shield on the controller side or the drive input power side.
• Separate all communication wiring from drive power lines.
Install an EMC noise filter to the drive power supply input.
• Counteract noise in the master controller (PLC).
If there are no problems with the wiring and the error continues to
occur, replace the option.
• The option Requested Packet Interval (RPI) timer timed out
• Make sure that RPI time is set properly
1. Find the device that caused the external fault and remove the
caus.
2. Clear the external fault input from the controller.
Examine the operation of the controller program.
Connect the option to the correct connector.
• Use connector CN5-A when you connect the option.
To use other options, refer to those option manuals.
1. De-energize the drive.
2. Connect the option to the correct option port.
1. De-energize the drive.
2. Make sure that the option is correctly connected to the
connector.
3. If the problem continues, replace the option.
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