sh030051g.pdf - 第359页

13 - 58 13. SERVO AMPLIFIERS WI TH A LARGE CAPACITY ( 30k TO 55kW ) (2) Remedies for alarms CAUTION When any alarm has occurred, eliminate it s cause, ensure safety, then reset the alarm, and restart operation. Otherwise…

100%1 / 424
13 - 57
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
No. Symbol Name and function
Initial
value
Unit
Setting
range
PA12 *DIF Input filter setting
Select the input filter.
Input signal filter
If external input signal causes chattering due to noise, etc., input
filter is used to suppress it.
0: None
1: 1.777[ms]
2: 3.555[ms]
3: 5.333[ms]
000
0002h Refer to
Name
and
function
column.
PA13 For manufacturer setting 0000h
PA14 Do not change this value by any means. 0000h
PA15 0000h
PA16 0000h
PA17 0000h
PA18 0000h
PA19 0000h
13.6 Troubleshooting
13.6.1 Converter unit
(1) Alarms and warning list
When a fault occurs during operation, the corresponding alarm or warning is displayed. If any alarm or
warning has occurred, refer to (2) or (3) of this section and take the appropriate action.
Switch power off, then on to deactivate the alarm. The alarms marked "
" in the alarm deactivation column
of the table can be deactivated by pressing the "RES" key of the converter unit side parameter unit or
switching on the reset signal (RES).
Display Name
Alarm deactivation Display Name
Power Error
Warning
A.91 Overheat warning
OFF ON reset
A.E0
Excessive regenerative load
Alarm
A.10 Undervoltage warning
A.12 Memory error1 (RAM) A.E1 Over load warning
A.15 Memory error2 (EEP-ROM) A.E6 Converter forced stop warning
A.17 Board error
A.E8
Cooling fan speed reduction
A.19 Memory error3 (Flash-ROM) warning
A.30 Regenerative error (Note) (Note)
A.33 Over voltage
A.37 Parameter error
A.38 MC drive circuit error
A.39 Open phase
A.3A
Inrush current suppressor circuit
error
A.45 Main circuit device overheat (Note) (Note)
A.47 Cooling fan error
A.50 Over load 1 (Note) (Note)
A.51 Over load 2 (Note) (Note)
888 Watchdog
Note. Deactivate the alarm about 30 minutes of cooling time after removing the cause of occurrence.
13 - 58
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(2) Remedies for alarms
CAUTION
When any alarm has occurred, eliminate its cause, ensure safety, then reset the
alarm, and restart operation. Otherwise, injury may occur.
POINT
When any of the following alarms has occurred, always remove its cause and
allow about 30 minutes for cooling before resuming operation. If operation is
resumed by switching control circuit power off, then on to reset the alarm, the
converter unit and regenerative option may become faulty.
Regenerative error (A.30)
Over load 1 (A.50)
Over load 2 (A.51)
Main circuit device overheat (A.45)
The alarm can be deactivated by switching the power off, then on or by the
error reset command from the host controller. Refer to (1) in this section for
details.
When an alarm occurs, the trouble (ALM) signal switches off and the display section shows the alarm number.
Remove the cause of the alarm in accordance with this section.
Display Name Definition Cause Action
A.10 Undervoltage Power supply voltage
dropped.
1. Instantaneous control power failure
occurred for more than 60ms.
Review the power supply.
2. Shortage of power supply capacity
caused the power supply voltage to
drop at start, etc.
3. Failure of the part in the converter
unit.
Checking method
Alarm (A.10) occurs if power is
switched on after connectors
disconnected.
Change the Converter unit.
A.12 Memory error 1
(RAM)
RAM memory fault Failure of the part in the converter unit.
Checking method
Alarm (A.12) occurs if power is
switched on after connectors
disconnected.
Change the converter unit.
A.15 Memory error 2
(EEP-ROM)
EEP-ROM fault 1. Failure of the part in the converter
unit.
Checking method
Alarm (A.15) occurs if power is
switched on after connectors
disconnected.
Change the converter unit.
2. The number of write times to EEP-
ROM exceeded 100,000.
A.17 Board error CPU/parts fault Failure of the part in the converter unit. Change the converter unit.
A.19 Memory error 3
(Flash-ROM)
ROM memory fault
Checking method
Alarm (A.17/A.19) occurs if power is
switched on after connectors
disconnected.
13 - 59
13. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
Display Name Definition Cause Action
A.30 Regenerative
error
Permissible regenerative
power of regenerative
option is exceeded.
1. Wrong setting of parameter No.PA01 Set correctly.
2. Regenerative option is not
connected.
Connect correctly.
3. High-duty operation or continuous
regenerative operation caused the
permissible regenerative power of
the regenerative option to be
exceeded.
Checking method
Call the status display and check the
regenerative load ratio.
1. Reduce the frequency of
positioning.
2. Use the regenerative option of
larger capacity.
3. Reduce the load.
4. Power supply voltage is abnormal.
MR-J3-CR55K: 260VAC or more
MR-J3-CR55K4: 520VAC or more
Review power supply
5. Regenerative option faulty. Change converter unit or
regenerative option.
6. Ground fault occurred in servo motor
power (U, V, W).
Correct the wiring.
Regenerative transistor fault 7. Regenerative transistor faulty.
Checking method
1)
2)
The regenerative option has
overheated abnormally.
The alarm occurs even after
removal of the built-in
regenerative resistor or
regenerative option.
Change the converter unit.
A.33 Over voltage Converter bus voltage
exceeded to following
voltage.
MR-J3-CR55K: 400VDC
MR-J3-CR55K4: 800VDC
1. Regenerative option is not used. Use the regenerative option.
2. Though the regenerative option is
used, the parameter No.PA01 setting
is "
00 (not used)".
Set correctly.
3. Lead of regenerative option is open
or disconnected.
1. Change lead.
2. Connect correctly.
4. Regenerative transistor faulty. Change the converter unit.
5. Wire breakage of regenerative
option.
Change the regenerative option.
6. Capacity of regenerative option is
insufficient.
Add regenerative option or
increase capacity.
7. Power supply voltage high. Review the power supply.
8. Ground fault occurred in servo motor
power (U, V, W).
Correct the wiring.
A.37 Parameter
error
Parameter setting is wrong. 1. Converter unit fault caused the
parameter setting to be rewritten.
Change the converter unit.
2. Regenerative option not used with
converter unit was selected in
parameter No.PA02.
Set parameter No.PA01 correctly.
3. The number of write times to
EEP-ROM exceeded 100,000 due to
parameter write, etc.
Change the converter unit.