Mitsubishi Electric Melservo MR-J3-100B, Handbook

Page: 135 / 590

Part 3: Review on Replacement of MR-J3-_B_ with MR-J4-_B_
3 - 38
MR-J3-_B_ MR-J4-_B_
No. Name and function
Initial
value
No. Name and function
Initial
value
PC20 Function Selection C-7
Set this function if undervoltage alarm occurs because of
distorted power supply voltage waveform when using
power regenerative converter or power regeneration
common converter.
0 0 0 x:
Setting when undervoltage alarm occurs
0: Initial value (Waveform of power supply voltage is not
distorted)
1: Set "1" if undervoltage alarm occurs because of
distorted power supply voltage waveform when using
power regenerative converter or power regeneration
common converter.
0000h PC20 Function selection C-7
This is used to select an undervoltage alarm detection
method.
_ _ _ x:
[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 0h
_ _ x _ :
For manufacturer setting 0h
_ x _ _ :
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)
0h
x _ _ _ :
For manufacturer setting 0h
PC21 Alarm history clear
Used to clear the alarm history.
0 0 0 x:
Alarm history clear
0: Invalid
1: Valid
When alarm history clear is made valid, the alarm history
is cleared at next power-on.
After the alarm history is cleared, the setting is
automatically made invalid (reset to 0).
0000h PC21 Same as MR-J3
Alarm history clear
Used to clear the alarm history.
_ _ _ x:
Alarm history clear selection
0: Disabled
1: Enabled
When "Enabled" is set, the alarm history will be cleared
at the next power-on. After the alarm history is cleared,
the setting is automatically disabled. 0h
_ _ x _ :
For manufacturer setting 0h
_ x _ _ :
For manufacturer setting 0h
x _ _ _ :
For manufacturer setting 0h