Alarm Detection; Alarm Codes, Causes, And Possible Solutions - YASKAWA V1000 Series Installation & Start-Up Manual

5.5 Alarm Detection

5.5 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 refer to
◆

Alarm Codes, Causes, and Possible Solutions

Table 5.9 Alarm Codes, Causes, and Possible Solutions
LED Operator Display
bb
Cause
External baseblock signal
entered via multi-function
input terminal (S1 to S7).
LED Operator Display
bUS
Cause
Connection is broken or
master controller stopped
communicating.
Option card is damaged.
The option card is not
properly connected to the
drive.
206
Baseblock
Drive output interrupted as indicated by an external baseblock signal.
Check external sequence and baseblock signal input timing.
Option Communication Error
• 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.
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
Table 5.9 for the appropriate action.
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault (H2-
= 10)
No output
Minor Fault (H2-
= 10)
YES
YES
YES