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

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
◆

Alarm Codes, Causes, and Possible Solutions

Table 5.10 Alarm Codes, Causes, and Possible Solutions
LED Operator Display
Cause
An external baseblock signal was
entered via a multi-function input
terminal (S1 through S7).
LED Operator Display
Cause
Connection is broken or master
controller has stopped
communicating.
224
YASKAWA TM.V1000.01 V1000 Drive Installation & Start-Up Manual (Preliminary 01-19-07)
Baseblock
bb
Drive output has been interrupted as indicated by an external baseblock
signal.
Check the external sequence and the baseblock signal
input timing.
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.
Table 5.10 for the appropriate action.
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault
Output
(H2- = 10)
No output
Minor Fault
Output
(H2- = 10)
YES