List Of Spindle Protection Functions And Warning Functions - Mitsubishi Electric MDS-B-SPJ2 Series Specification Manual

6.6 List of spindle protection functions and warning functions

Alarm
Abbr. Name
No.
10 UV Undervoltage
12 ME1 Memory error
13 SWE Software process error The software data process did not end within the set time.
17 ADE AD error
No signal (spindle
21 NS
encoder)
Excessive speed
23 OSE
deflection
Ground fault
24 PG
detection
30 ORG Over-regeneration
31 OS Overspeed
Power module
32 PME
abnormality
33 OV Overvoltage
34 DP CRC error
35 DE Data error
36 TE Transmission error
37 PE Parameter error
38 TP1 Protocol error 1
39 TP2 Protocol error 1
Power module
3B PMOH
overheat
42 PLE Feedback error (PLG)
46 OHM Motor overheat
50 OL Overload
52 OD Excessive error
Orientation feedback
5C ORF
error
88 WD Watchdog
Over-regeneration
E0 WOR
alarm
E1 WOL Overload warning
Parameter error
E4 WPE
warning
NC emergency stop
E7 NCE
warning
Note 1) If the above protective functions activate, the alarm No. will be displayed on the 7-segment LED built into the spindle drive, and
the following will occur.
[Operation] a : The base of the spindle drive unit is shut off and the spindle motor coasts to a stop.
b : The spindle motor decelerates to a stop with regenerative braking, the base is shut off.
c : This is only a warning, and the operation is continued.
[Reset method] AR : This alarm is reset when the spindle driver power is turned ON again.
PR : This alarm is reset when the NC power is turned ON again.
NR : This alarm is reset when the NC reset key is pressed.
−
: This alarm is automatically reset after the warning is reset. Note that the start command must be turned
OFF once for emergency stop warnings. (Except during orientation.)
6. Status Display and Parameter Setting
The main circuit DC bus (PN) voltage became 200V or less.
An error occurred in the ROM check sum or RAM check of the spindle
drive control card.
The current detection AD converter did not function correctly during
initialization.
A signal (for orientation) was not input from the spindle encoder, or the
input signal is not the correct level.
The error of the speed command and the actual motor speed became
higher than the specified value, and continued in that state for longer
than the specified time.
A motor cable ground fault was detected. (Detected only at the ready
ON instant.)
Overheating of the regenerative resistor was detected due to frequent
regeneration.
The actual motor speed exceeded 115% of the set max. speed.
A current exceeding the specified value flowed to the IPM or metal
PCB used in the spindle drive main circuit section.
The main circuit condenser voltage abnormally rose above the
specified value due to the regeneration energy during data
deceleration.
A CRC error occurred in the communication data from the NC.
The movement command from the NC is abnormally large during position
control.
The cyclic transmission from the NC was cut off.
There was an error in the spindle parameters transferred from the NC
during initialization.
A protocol error occurred during the communication with the NC.
A protocol error occurred during the communication with the NC.
(Information error)
The power components being used in the spindle drive main circuit
section overheated.
The motor PLG rotation counter value error pulse exceeded the setting
value (SP90: PLE).
Overload, or the motor cooling blower stop and the motor overheated
causing the built-in thermal protector to function.
The motor current flowed for a time exceeding the overload time constant
of the overload detection level.
The position tracking error was over the specified value in the position
loop operation.
After the orientation in-position is completed, the error of the command
and feedback exceeded the setting value (SP114: OPER).
The software process did not finish within the specified time.
The regenerative resistor load reached 80% of the alarm level.
The motor current flowed at 80% or more of the detection time constant
for a time exceeding the overload detection level.
A value exceeding the tolerable value was set during ready ON.
The emergency stop command was input from an external source.
6 − 26
Details
Opera- Reset
tion method
a PR
a AR
a PR
a PR
a PR
a PR
a
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a PR
a NR
a NR
a NR
a NR
a AR
−
b
b −
−
b
−
c