Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 85

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:
Control circuit power supply undervoltage alarm
detection method selectiom
0: Initial value
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
0 r/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. 10.2] regardless of servo motor speed
1: [AL. E9.1] at servo motor speed 50 r/min or less,
[AL. 10.2] at over 50 r/min
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 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
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 - 50
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