Alarm Detection; Alarm Detection; Alarm Codes, Causes, And Possible Solutions - YASKAWA V1000 Technical Manual

6.5 Alarm Detection

6.5

Alarm Detection

Alarms are drive protection functions that do not operate the fault contact. The drive will return to original status when
the cause of the alarm has been removed.
During an alarm condition, the Digital Operator display flashes and an alarm output is generated at the multi-function
outputs (H2-01 to H2-03), if programmed.
Investigate the cause of the alarm and
appropriate action.
u

Alarm Codes, Causes, and Possible Solutions

LED Operator Display
Cause
Station number is set outside the possible
setting range.
LED Operator Display
Cause
External baseblock signal entered via
multi-function input terminal (S1 to S7). Check external sequence and baseblock signal input timing.
LED Operator Display
Cause
Connection is broken or master controller
stopped communicating.
Option card is damaged.
The option card is not properly connected
to the drive.
A data error occurred due to noise.
LED Operator Display
Cause
266
Refer to Alarm Codes, Causes, and Possible Solutions on page 266
Table 6.10 Alarm Codes, Causes, and Possible Solutions
Station Address Setting Error (CC-Link, CANopen, MECHATROLINK)
AEr
Option card node address is outside the acceptable setting range.
• Set parameter F6-10 to the proper value if a CC-Link option card is used
• Set parameter F6-20 to the proper value if a MECHATROLINK option card is used.
• Set parameter F6-35 to the proper value if a CANopen option card is used.
Baseblock
bb
Drive output interrupted as indicated by an external baseblock signal.
Option Communication Error
bUS
• After initial communication was established, the connection was lost.
• Assign a run command frequency reference to the option card.
• Check for faulty wiring.
• Correct the wiring.
• Repair ground wiring or disconnected cables.
If there are no problems with the wiring and the fault continues to occur, replace the
option card.
• The connector pins on the option card are not properly lined up with the connector
pins on the drive.
• Reinstall the option card.
• Check options available to minimize the effects of noise.
• Take steps to counteract noise in the control circuit wiring, main circuit lines and
ground wiring.
• Try to reduce noise on the controller side.
• Use surge absorbers on magnetic contactors or other equipment causing the
disturbance.
• Use cables recommended by Yaskawa, or another type of shielded line. The shield
should be grounded on the controller side or on the drive input power side.
• All wiring for communications devices should be separated from drive input power
lines. Install an EMC noise filter to the input side of the drive input power.
Serial Communication Transmission Error
CALL
Communication has not yet been established.
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
YASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual
for the
Minor Fault
(H2-oo =
10)
YES
Minor Fault
(H2-oo =
10)
No output
Minor Fault
(H2-oo =
10)
YES
YES
YES
YES
Minor Fault
(H2-oo =
10)