4742-E P-29
SECTION 1 INVERTER UNIT (MIV UNIT)
32
Speed
deviation too
large
Deviation between the command speed and actual speed was
excessively large.
XXXXYYYY
In case of MCS
XXXX = Detected torque (sum of torque in 3.2-msec period)
±
2^-12 [MAXTRQ]
If Tv = 0.4 msec
7FFF[Hex] corresponds to the maximum momentary
torque.
If Tv = 0.8 msec.
3FFF[Hex] corresponds to the maximum momentary
torque.
YYYY = Detected acceleration rate
(average in 3.2-msec period)
±
2^-16 [vr/3.2 ms/3.2 ms]
0.1 [min
-1
/ms]
In case of MCSII
XXXX = Detected torque
±
2^-15 [MAXTRQ]
YYYY = Detected acceleration rate
±
2^-16 [2.5KHz/3.2 ms]
If XXXX = 0 and YYYY = 1, the error data is "0" due to
underflow.
Reduce cutting
torque
Change the MIV unit.
Change the motor.
33
Collision
detection
The NC torque limiter function detected the interference of an
axis from the relationship of "motor output = motor acceleration
rate".
XXXXYYYY
XXXX = Detected torque (sum of torque in 3.2-msec period)
±
2^-12 [MAXTRQ]
If Tv = 0.4 msec
7FFF[Hex] corresponds to the maximum momentary
torque.
If Tv = 0.8 msec.
3FFF[Hex] corresponds to the maximum momentary
torque.
YYYY = Detected acceleration rate
(average in 3.2-msec period)
±
2^-16 [vr/3.2 ms/3.2 ms]
0.1 [min
-1
/ms]
In case of ICB-H
XXXX = Detected torque
±
2^-15 [MAXTRQ]
YYYY = Detected acceleration rate
±
2^-16 [2.5KHz/3.2 ms]
If XXXX = 0 and YYYY = 1, the error data is "0" due to
underflow.
Eliminate the
interference in the
mechanical drive
system.
Check the setting
value of NC torque
limiter.
Change the motor
attached encoder.
Change the MIV unit.
Change the motor.
34
Emergency
stop time over
At the activation of an emergency stop function, the machine
could not stop within the preset time.
XXXXXXXX
1: Emergency stop time over
2: Deceleration time over in emergency stop
3: Deceleration time over in alarm stop
Check the servo
data file.
Check the NC soft-
ware.
Change the MIV unit.
Change the motor.
No.
Name
Description/Alarm Code
Corrective Action
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