Fanuc Power Mate i-D/H Operation Maintenance Handbook

3
1
4
5
6
7
8
9
10
2
314
#7
#6 #5 #4 #3 #2 #1 #0
203
DTE CRC STB PRM
#7 (DTE) : The serial pulse coder encountered a
communication error. The pulse coder, feedback
cable, or feedback receiver circuit is defective.
Replace the pulse coder, feedback cable, or control
card.
#6 (CRC) : The serial pulse coder encountered a
communication error. The pulse coder, feedback
cable, or feedback receiver circuit is defective.
Replace the pulse coder, feedback cable, or control
card.
#5 (STB) : The serial pulse coder encountered a
communication error. The pulse coder, feedback
cable, or feedback receiver circuit is defective.
Replace the pulse coder, feedback cable, or control
card.
#4 (PRM) : An invalid parameter was found. Alarm No. 417
(invalid servo parameter) is also issued.
9.1.5 Servo alarms
Number Message Contents
401 SERVO ALARM: nTH AXIS
VRDY OFF
The nth axis (axis 18) servo ampli-
fier READY signal (DRDY) went off.
Refer to procedure of trouble shoot-
ing.
404 SERVO ALARM: nTH AXIS
VRDY ON
Even though the nth axis (axis 1–8)
READY signal (MCON) went off, the
servo amplifier READY signal
(DRDY) is still on. Or, when the pow-
er was turned on, DRDY went on
even though MCON was off.
Check that the Power Mate i and ser-
vo amp are connected.
405 SERVO ALARM:
(ZERO POINT RETURN
FAULT)
Position control system fault. Due to
an NC or servo system fault in the
reference position return, there is the
possibility that reference position re-
turn could not be executed correctly.
Try again from the manual reference
position return.
407 SERVO ALARM: EXCESS
ERROR
The difference in synchronous axis
position deviation exceeded the set
value.
1) The difference in the positional
deviation between the synchro-
nized axes exceeded the value
set in parameter No. 8314.
2) The amount of compensation for
synchronization matching ex-
ceeded the value set in parame-
ter No. 8325.
409 SERVO ALARM: n AXIS
TORQUE ALM
Abnormal servo motor load has been
detected.

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