Power Supply Alarm - Mitsubishi Electric M800 Series Manual

M800/M80/E80/C80 Series Alarm/Parameter Manual
3 Servo/Spindle Alarms (S)

(2) Power supply alarm

No. Name
61 Power supply: Power module overcurrent
62 Power supply: Frequency error
66 Power supply: Process error
67 Power supply: Phase interruption
68 Power supply: Watchdog
69 Power supply: Grounding
6A Power supply: External contactor welding
6B Power supply: Rush circuit error
6C Power supply: Main circuit error
6D Parameter setting error
6E Power supply: H/W error
A/D error
Unit ID error
6F Power supply error
70 Power supply: External emergency stop
error
71 Power supply: Instantaneous power
interruption
72 Power supply: Fan stop
73 Power supply: Over regeneration
74 Power supply: Option unit error
75 Power supply: Overvoltage
76 Power supply: Function setting error
Power supply: Function selection error
77 Power supply: Power module overheat
(Note 1) If a power supply alarm (60 to 77) occurs, all servos will stop with the dynamic brakes, and all spindles will coast to a stop.
(Note 2) "b", "C" and "d" displayed on the power supply unit's LED as a solid light (not flickering) do not indicate an alarm.
(Note 3) Check the LED display of the power backup unit to identify what alarm is occurring to the power backup unit.
** Refer to your drive unit's instruction manual for details.
(Note 4) When the power supply alarm (6F) is detected in the 2nd part system, the reset method differs depending on the detected
power supply alarm.
Overcurrent protection function in the power module has started its operation.
The input power supply frequency increased above the specification range.
An error occurred in the process cycle.
An open-phase condition was detected in input power supply circuit.
The system does not operate correctly.
The motor power cable is in contact with FG (Frame Ground).
A contact of the external contactor is welding.
An error was detected in the rush circuit.
An error was detected in charging operation of the main circuit capacitor.
An error was detected in the parameter sent from the drive unit.
An error was detected in the internal memory.
An error was detected in the A/D converter.
An error was detected in the unit identification.
No power supply is connected to the drive unit, or a communication error was
detected.
A mismatch of the external emergency stop input and NC emergency stop input
continued for 30 seconds.
The power was momentarily interrupted.
A cooling fan built in the power supply unit stopped, and overheat occurred in
the power module.
Over-regeneration detection level became over 100%. The regenerative resistor
is overloaded. This alarm cannot be reset for 15 min from the occurrence to
protect the regeneration resistor. Leave the drive system energized for more
than 15 min, then turn the power ON to reset the alarm.
An alarm was detected in the power backup unit (power supply option unit).
L+ and L- bus voltage in main circuit exceeded the allowable value. As the
voltage between L+ and L- is high immediately after this alarm, another alarm
may occur if this alarm is reset in a short time. Wait more than 5 min before
resetting so that the voltage drops.
The rotary switch setting of external emergency stop is not correct, or a wrong
external emergency stop signal is input.
Undefined area for the rotary switch is selected
Thermal protection function in the power module has started its operation.
55
Details
Reset
method
PR
PR
PR
PR
AR
PR
PR
PR
PR
PR
AR
AR
(Note 4)
PR
NR
PR
NR
NR
(Note 3)
NR
AR
PR
IB-1501279-H