User Manual Of EL7-EC** AC Servo
139
Alarm clearing - Sequence diagram
Servo
alarm
ALM
Servo
ready
S-RDY
Alarm
clearing
A-CLR
Dynamic
brake
Servo
status
SRV-ST
Motor power
External
brake
deactivation
BRK-OFF
Position,
Velocity,
Torque Command
Alarm
No Alarm
Not Ready
Ready
Input coupler OFF
Input coupler ON
Activated
Deactivated
Disabled
Enabled
Power OFF
Power ON
Brake ON
Brake OFF
No command
Command
*1
** 1.SRV-ST signal is received when servo driver is enabled. Command input is not allowed yet
2. BRK-OFF signal doesn’t indicate the deactivation of holding brake but the invalidation of the signal.
Holding brake is applied when BRK-OFF signal is invalid.