Mitsubishi Electric MELSERVO-J3 Series Handbook page 81

Part 2: Review on Replacement of MR-J3-_A_ with MR-J4-_A_
MR-J3-_A_
No.
Name and function
PC26 Function selection C-5
Select the [AL. 99 Stroke limit warning].
0 0 0 x:
[AL. 99 Stroke limit warning] selection
0: Valid
1: Invalid
When this parameter is set to "1", AL. 99 will not
occur if the forward rotation stroke end (LSP) or
reverse rotation stroke end (LSN) turns OFF.
PC27 Function selection C-6
Set this function if undervoltage alarm occurs
because of distorted power supply voltage waveform
when using power regenerative converter or power
regenerative 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
regenerative common converter.
PC30 Acceleration time constant 2
This parameter is made valid when the
acceleration/deceleration selection (STAB2) is
turned ON.
Used to set the acceleration time required to reach
the rated speed from 0 r/min in response to the
analog speed command and internal speed
commands 1 to 7.
PC31 Deceleration time constant 2
This parameter is made valid when the
acceleration/deceleration selection (STAB2) is
turned ON.
Used to set the deceleration time required to reach
0r/min from the rated speed in response to the
analog speed command and internal speed
commands 1 to 7.
Initial
No.
value
0000h PC26
Same as MR-J3
Function selection C-5
_ _ _ x:
[AL. 99 Stroke limit warning] selection
Enable or disable [AL. 99 Stroke limit warning].
0: Enabled
1: Disabled
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
For manufacturer setting
0000h PC27 Function selection C-6
_ _ _ x:
[AL. 10 Undervoltage] detection method selection
Set this parameter when [AL. 10 undervoltage]
occurs due to power supply voltage distortion while
using FR-RC-(H) or FR-CV-(H).
0: When [AL. 10] does not occur
1: When [AL. 10] occurs
_ _ x _:
Main circuit power supply selection
This digit is not available with MR-J4-_A_(-RJ) 100
W or more servo amplifiers.
_ 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)
x _ _ _:
For manufacturer setting
0 PC30
Same as MR-J3
Acceleration time constant 2
To enable the parameter, turn on STAB2 (Speed
acceleration/deceleration selection).
Set the acceleration time required to reach the rated
speed from 0 r/min or 0 mm/s for VC (Analog speed
command) and [Pr. PC05 Internal speed command
1] to [Pr. PC11 Internal speed command 7].
Setting range: 0 to 50000
0 PC31
Same as MR-J3
Deceleration time constant 2
To enable the parameter, turn on STAB2 (Speed
acceleration/deceleration selection).
Set the deceleration time required to reach 0 r/min
or 0 mm/s from the rated speed for VC (Analog
speed command) and [Pr. PC05 Internal speed
command 1] to [Pr. PC11 Internal speed command
7].
Setting range: 0 to 50000
2 - 48
MR-J4-_A_
Name and function
Control
Initial
mode
value
0h P
S
0h
0h
0h
0h P
S
T
0h P
S
T
0h P
S
T
0h
0 S
T
0 S
T