Mitsubishi Electric MR-J4-TM Instruction Manual page 188

5. PARAMETERS
No./ Setting
symbol/name digit
PC31 Set the compensation amount of the vertical axis freefall prevention function.
RSUP1 Set it per servo motor rotation amount or linear servo motor travel distance.
Vertical axis When setting a positive value, the servo motor or linear servo motor moves in the
freefall direction set with [Pr. PA14] for the forward rotation pulse input. When setting a
prevention negative value, the servo motor or linear servo motor moves in the direction set with
compensation [Pr. PA14] for the reverse rotation pulse input.
amount
For example, when [Pr. PA14 Rotation direction selection/travel direction selection]
is set to "1" and a positive value is set for the compensation amount, the servo motor
pulls up in the CW direction.
The vertical axis freefall prevention function is performed when all of the following
conditions are met.
1) Position mode
2) The setting value of this parameter is other than "0".
3) The forced stop deceleration function is enabled.
4) Alarm occurs or EM2 turns off when the servo motor speed is zero speed or less.
5) MBR (Electromagnetic brake interlock) was enabled in [Pr. PD07] to [Pr. PD09],
Setting range: -25000 to 25000
PC38 Set an error excessive warning level.
ERW The setting unit can be changed with "Error excessive alarm/error excessive warning
level unit selection" in [Pr. PC06].
Error
excessive Set this per rev. for rotary servo motors and direct drive motors. Setting over 200 rev
warning level will be clamped with 200 rev. Set this per mm for linear servo motors. However,
setting "0" will not trigger [AL. 9B Error excessive warning].
When an error reaches the set value, [AL. 9B Error excessive warning] will occur.
When the error decreases lower than the set value, the warning will be canceled
automatically. The minimum pulse width of the warning signal is 100 [ms].
Set as follows.: [Pr. PC38 Error excessive warning level] < [Pr. PC01 Error
excessive alarm level] When you set as follows, [AL. 52 Error excessive] will occur
earlier than the warning.: [Pr. PC38 Error excessive warning level] ≥ [Pr. PC01 Error
excessive alarm level]
Setting range: 0 to 1000
PC65 Set a speed level for turning on the zero speed 2.
ZSP2L When the state in which the absolute value of the servo motor speed exceeds the
parameter setting value continues for the time set in [Pr. PC66 Zero speed 2 filtering
Zero speed 2
time] or longer, "Statusword (Index: 6041h) bit12 Speed" will be turned off.
level
This function will be enabled in the profile velocity mode.
This parameter corresponds to "Velocity threshold (Index: 606Fh)". When this
parameter is mapped for the PDO communication, the value written with MR
Configurator2 is overwritten with the controller. Thus, do not write a value with MR
Configurator2.
Setting range: 0.00 to 655.35
Set a speed level for turning on the zero speed 2.
When the state in which the absolute value of the servo motor speed exceeds the
parameter setting value continues for the time set in [Pr. PC66 Zero speed 2 filtering
time] or longer, "Statusword (Class ID: 64h, Ins ID: 6041h) bit12 Speed" will be
turned off.
This function will be enabled in the profile velocity mode.
This parameter corresponds to "Velocity threshold (Class ID: 64h, Ins ID: 606Fh, Attr
ID: 0)". When this parameter is mapped for the I/O communication, the value written
with MR Configurator2 is overwritten with the controller. Thus, do not write a value
with MR Configurator2.
Setting range: 0.00 to 655.35
and the base circuit shut-off delay time was set in [Pr. PC02].
Function
5 - 49
Initial
Network
value
ECT EIP
[unit]
0
[0.0001
rev]/
[0.01
mm]
0
[rev]/
[mm]
50.00
[r/min]/
[mm/s]
50.00
[r/min]/
[mm/s]