Alarm Detection; Alarm Detection; Alarm Codes, Causes, And Possible Solutions - YASKAWA CIMR-JC4A0002BAA Quick Start 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 output (H2-01), if programmed.
Investigate the cause of the alarm and refer to
u

Alarm Codes, Causes, and Possible Solutions

LED Operator Display
bb
Cause
External baseblock signal
entered via multi-function
input terminal (S1 to S5).
LED Operator Display
CALL
Cause
Communications wiring is
faulty, there is a short circuit,
or something is not connected
properly.
Programming error on the
master side.
Communications circuitry is
damaged.
Terminal resistance setting is
incorrect.
LED Operator Display
CE
Cause
140
Table 5.8 Alarm Codes, Causes, and Possible Solutions
Baseblock
Drive output interrupted as indicated by an external baseblock signal.
Check external sequence and baseblock signal input timing.
Serial Communication Transmission Error
Communication has not yet been established.
• Check for wiring errors.
• Correct the wiring.
• Remove and ground shorts and reconnect loose wires.
Check communications at start-up and correct programming
errors.
• Perform a self-diagnostics check.
• Replace the drive if the fault continues to occurs.
The terminal slave drive must have the internal terminal
resistance switch set correctly. Place DIP switch S2 to the ON
position.
MEMOBUS/Modbus Communication Error
Control data was not received correctly for two seconds.
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Table 5.8 for the appropriate action.
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault
(H2-01 = 10)
No output
Minor Fault
(H2-01 = 10)
YES
YES
YES
YES
Minor Fault
(H2-01 = 10)