Protective Functions List Of Units; Drive Unit Alarm - Mitsubishi Electric CNC Specifications And Instruction Manual

Direct Drive Motor Specifications and Instruction Manual
7 Setup

7.4 Protective Functions List of Units

The protective functions related to the direct-drive motor system are shown below.

7.4.1 Drive Unit Alarm

No. Name
Initial magnetic pole position
16
detection error
25 Absolute position data lost
37 Initial parameter error
Magnetic pole position
3E
detection error
Motor overheat /
46
Thermal error
51 Overload 2
52 Excessive error 1
(Note) Resetting methods
NR : Reset with the NC RESET button. This alarm can also be reset with the PR and AR resetting conditions.
PR : Reset by turning the NC power ON again. This alarm can also be reset with the AR resetting conditions.
When the control axis is removed, this alarm can be reset with the NC RESET button. (Excluding alarms 32 and 37.)
AR : Reset by turning the NC and servo drive unit power ON again.
Encoder alarm (Servo drive unit)
Alarm number when the encoder is
connected to CN2 side
Mitsubishi
MBA405W
Electric
RCN223M, RCN723M,
RCN227M, RCN727M, HEIDENHAIN
RCN827M
Mitsubishi
Heavy
MPRZ scale
Industries
Machine Tool
RU77 Magnescale
HAM Series FAGOR
RA Series Renishaw
(Note) A drive unit processes all reset types of alarms as "PR". However, "AR" will be applied according to the encoder.
Details
-In the direct-drive motor which uses the absolute position encoder, the
servo ON has been set before the magnetic pole shift amount (SV028) is set.
-The magnetic pole position, detected in the initial magnetic pole
estimate function at initial setup when using MBA405W, is not correctly
estimated.
-The absolute position data was lost in the encoder.
-An incorrect set value was detected among the parameters send from the NC at
the power ON.
-The magnetic pole position, detected in the magnetic pole position detection
control, is not correctly detected.
The setting of magnetic pole shift amount (SV028) is not reliable.
- An overheat is detected on the motor.
- The thermistor signal receiving circuit of the linear motor or direct-drive motor
was disconnected.
- The thermistor signal receiving circuit was short-circuited.
- Current command of 95% or more of the unit's max. current was given
continuously for 1 second or longer.
- The encoder installation polarity (SV17/bit0) may be reverse.
-A position tracking error during servo ON was excessive.
2B 2C
Waveform
CPU error Data error
error
Relative/
Initialization EEPROM absolutepo
error error sition data
mismatch
Installation Detection
accuracy - position
fault deviance
System Encoder
Laser diode
memory mismatch
error
error error
Absolute
value
- -
detection
error
Absolute
Initialization
- position
error
data error
2D 2E 48
- -
ROM-RAM
CPU error
error
Absolute
Scale value
breaking detection
fault
- -
H/W error CPU error
- -
65
Reset
Stop method
method
PR Dynamic stop
AR Initial error
PR Initial error
AR Dynamic stop
NR Deceleration stop
NR Deceleration stop
NR Deceleration stop
49 4A 4B
- - Count error
Absolute Relative
Overspeed position position
data error data error
- Gain fault Phase fault
Absolute Relative
Overspeed position position
data error data error
- - -
Over speed - -
IB-1501068-C