YASKAWA E-V Series User Manual page 177

Alarm
Alarm Name
No.
Safety Module:
A.EB4 Feedback Data
Malfunction
Safety Module: Timing
A.EB5 Error of Safety Request
Input Signal A
Safety Module: Timing
A.EB6 Error of Safety Request
Input Signal B
Safety Module: Safety
A.EB7 Function A Monitoring
Alarm
Safety Module: Safety
A.EB8 Function B Monitoring
Alarm
Cause Investigative Action
An error occurred in the
position data of the –
motor.
When either Safety
Request Input Signal A1
• Check the state of the 
or A2 was turned OFF,
I/O signal correspond-
the other signal did not
ing to Un016.
turn OFF within 10 sec-
• Check the wiring.
onds.
• Check the waveform of
When either Safety
the input signal with
Request Input Signal A1
measuring device such
or A2 was turned ON, the
as an oscilloscope.
other signal did not turn
ON within 10 seconds.
When either Safety
Request Input Signal B1
• Check the state of the 
or B2 was turned OFF,
I/O signal correspond-
the other signal did not
ing to Un016.
turn OFF within 10 sec-
• Check the wiring.
onds.
• Check the waveform of
When either Safety
the input signal with
Request Input Signal B1
measuring device such
or B2 was turned ON, the
as an oscilloscope.
other signal did not turn
ON within 10 seconds.
When SBB-D, SPM-D,
or SLS-D was selected as
Safety Function A, the
–
motor speed exceeded the
monitoring speed set for
Safety Function A.
When SPM-D was
selected as Safety Func-
tion A, the distance that
the motor moved –
exceeded the distance for
monitoring set for Safety
Function A.
When SBB-D, SPM-D,
or SLS-D was selected as
Safety Function B, the
–
motor speed exceeded the
monitoring speed set for
Safety Function B.
When SPM-D was
selected as Safety Func-
tion B, the distance that
the motor moved –
exceeded the distance for
monitoring set for Safety
Function B.
11.2 Troubleshooting of Alarms
(cont'd)
Corrective Action
• Restart the system.
• Remove the Safety
Module and then install
it again.
• Replace the SERVO-
PACK.
• Replace the Safety
Module.
• Correct the wiring.
• Make improvements in
the EMC installation
environment.
• Restart the system.
• Replace the Safety
Module.
• Correct the wiring.
• Make improvements in
the EMC installation
environment.
• Restart the system.
• Replace the Safety
Module.
• Correct the decelera-
tion reference.
• Correct the monitoring
speed.
• Correct the position
reference.
• Correct the distance for
monitoring.
• Correct the decelera-
tion reference.
• Correct the monitoring
speed.
• Correct the position
reference.
• Correct the distance for
monitoring.
11-5