YASKAWA V1000 Series

224 YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
5.6 Alarm Detection
5.6 Alarm Detection
Alarms are drive protection functions that do not operate the fault contact. The
drive will automatically return to its 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 an alarm and refer to Table 5.10 for the appropriate action.
◆ Alarm Codes, Causes, and Possible Solutions
Table 5.10 Alarm Codes, Causes, and Possible Solutions
LED Operator Display Minor Fault Name
bb
Baseblock
Drive output has been interrupted as indicated by an external baseblock
signal.
Cause Possible Solutions
Minor Fault
Output
(H2- = 10)
An external baseblock signal was
entered via a multi-function input
terminal (S1 through S7).
Check the external sequence and the baseblock signal
input timing.
No output
LED Operator Display Minor Fault Name
bUS
Option Communication Error
• After initial communication was established, the connection was lost.
• Assign a run command frequency reference to the option card.
Cause Possible Solutions
Minor Fault
Output
(H2- = 10)
Connection is broken or master
controller has stopped
communicating.
• Check for faulty wiring.
• Correct the wiring.
• Repair ground wiring or disconnected cables.
YES