Mitsubishi Electric Melservo-J4 Instruction Manual page 92

Alarm No.: 7C
Alarm content
Detail Detail name
No.
7C.2 Functional
safety unit
communication
data error
(safety
observation
function)
1 TROUBLESHOOTING FOR SERVO AMPLIFIER (DRIVE UNIT)
90
1.4 Remedies for alarms
Name: Functional safety unit communication diagnosis error (safety observation function)
 The network communication had an error in the functional safety unit.
Cause Check method
(1) The time taken for the Refer to "MR-D30
detection of safety Instruction Manual" and
communication errors is check the setting.
not set correctly.
(2) An error occurred at the Check if an alarm occurs
safety master station at the safety master
side. station.
(3) An error occurred at the Check if the settings of
servo system controller the servo system
side. controller side are
correct.
(4) [B]: Check it with the check method for [AL. 34.1].
[GF]: Check it with the check method for [AL. 8D.1].
Check result Action
It is not set correctly. Set it correctly.
It is set correctly. Check (2).
It is occurring. Refer to the
troubleshooting for the
master station and take
countermeasures.
It did not occur. Check (3).
It has a failure. Set it correctly.
It has no failure. Check (4).
Target
[GF]
[B]
[B]
[GF]