Yaskawa SI-EP3 PROFINET Installation User Manual
Page 46
8 Troubleshooting
46
YASKAWA TOEP YEACOM 07A 1000-Series Option PROFINET SI-EP3 Installation Manual
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Minor Faults and Alarms
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bUS Error Auto-Reset
bUS Error Auto-Reset Function Description
bUS Error Auto-Reset when configured, allows the drive to automatically recover from a
bUS error as a result of a communication loss with the host.
A bUS Error will automatically reset under the following conditions.
• Network communication between the host and the drive is restored. (bUS error removed)
• bUS Error Auto-Reset is enabled as described in this section.
Enabling bUS Error Auto-Reset
Parameter F6-14
<1>
bUS Error Auto Reset enables the bUS Error Auto-Reset function.
F6-14 becomes available when the option is installed on the drive.
1. Set parameter F6-14 = 1:Enabled
2. Set parameter F6-01 = 0:Ramp to Stop, 1:Coast to Stop, 2:Fast-Stop
3. Set parameter F7-16 = 0.1 to 10.0 seconds (optional)
Enabling bUS Error Auto-Restart (After a Time Delay)
Parameter F7-16 Communication Loss Timeout will delay the occurrence of a bUS error
condition by the amount of time set in this parameter. F7-16 is set in tenths of seconds. The
status LEDs on the option will indicate the bUS error condition immediately upon detection
and during the F7-16 delay time. Refer to
.
• Set parameter F7-16 = 0.1 to 10.0 seconds (0.0 setting disables F7-16) to enable timeout
delay.
LED Operator Display
Minor Fault Name
CALL
Serial communication transmission error.
Communication is not established.
Cause
Possible Solution
Minor Fault
(H2- = 10)
Communication wiring is faulty, there
is a short circuit, or improper
connection
Check for wiring errors:
Correct the wiring
Remove ground shorts and reconnect loose wires
YES
Programming error on the master side
Check communications at start-up and correct
programming errors.
Communication circuitry is damaged.
Perform a self-diagnostics check
Replace the drive if the fault continues to occur
<1>
Available in SI-EP3/V firmware version VST800251 and later. Refer to
for specifics relating to your drive
and drive software version.