Mitsubishi Electric MR-J4 Instruction Manual page 180

5. PARAMETERS
No. Symbol
PC20 *COP7 Function selection C-7
This is used to select an undervoltage alarm detection method.
Setting
digit
_ _ _ x
_ _ x _
_ x _ _
x _ _ _
PC21 *BPS Alarm history clear
Used to clear the alarm history.
Setting
digit
_ _ _ x
_ _ x _
_ x _ _
x _ _ _
Name and function
Explanation
[AL. 10 Undervoltage] detection method selection
This is set when FR-RC-(H) or FR-CV-(H) is used and if [AL. 10
undervoltage] occurs due to distorted power supply voltage
waveform.
0: [AL. 10] not occurrence
1: [AL. 10] occurrence
For manufacturer setting
Undervoltage alarm selection
Select the alarm and warning for when the bus voltage drops to the
undervoltage alarm level.
0: [AL. 10] regardless of servo motor speed
1: [AL. E9] at servo motor speed 50 r/min (50 mm/s) or less, [AL.
10] at over 50 r/min (50 mm/s)
For manufacturer setting
Explanation
Alarm history clear selection
0: Disabled
1: Enabled
When you select "Enabled", the alarm history will be cleared at next
power-on. After the alarm history is cleared, the setting is
automatically disabled.
For manufacturer setting
5 - 39
Initial
Setting
value
range
[unit]
Refer to the
"Name and
function" column.
Initial
value
0h
0h
0h
0h
Refer to the
"Name and
function" column.
Initial
value
0h
0h
0h
0h