
13. DIAGNOSIS INFORMATION
773
Supplement 3 : About the functions indicated in the column of Action
For the following functions indicated in the table, refer to “FANUC AC SERVO
MOTOR αi series Parameter Manual (B–65270EN)”:
D Function for changing the internal format of the velocity loop proportional gain
D Position gain expansion function
D Vibration–damping control function
D Runaway detection function
355
Communication alarm ignore counter (separate)
DGN
356
Connection processing counter (built–in)
DGN
357
Connection processing counter (separate)
DGN
The number of communication errors that occur in serial communication with
the detector is indicated. As long as no alarm is issued, communicated data
is guaranteed. However, if any of these counters indicated in the diagnosis
information above reaches a very large value rapidly, noise is probably
disturbing serial communication. So, provide noise protection sufficiently.
NOTE For details, refer to the relevant manual of FANUC SERVO MO-
TOR αi Series.
358
V ready–off information
DGN
Information for analyzing the cause of the V ready–off alarm (servo alarm
ALM401).
Convert an indicated value to a binary value, then check bits 5 to 14. When
the amplifier is activated, bits 5 to 14 are set to 1 sequentially starting with
bit 5 if the amplifier is started normally. When you check these bits
sequentially from the lower bit to the higher bit, the processing of the bit first
set to 0 has failed, indicating the cause of the V ready–off alarm.
#15
#14 #13 #12 #11 #10 #09 #08
SRDY DRDY INTL CRDY
#07
#06 #05 #04 #03 #02 #01 #00
*ESP
*ESP : Converter emergency stop reset state
CRDY : Converter ready for operation
INTL : DB relay reset completed
DRDY : Amplifier ready for operation (amplifier)
SRDY : Amplifier ready for operation (software)
NOTE For details, refer to the relevant manual of FANUC SERVO MO-
TOR αi Series.