Mitsubishi Electric M800 Series Manual page 547

M800/M80/E80/C80 Series Alarm/Parameter Manual
16 Machine Parameters
#2252 SV052 DFBN
Set the non-sensitive band in the dual feedback control.
Normally, set to "0".
For linear servo/direct-drive motor system
Not used. Set to "0".
Related parameters: SV017/bit1, SV052
---Setting range---
0 to 9999 (μm)
#2253 SV053 OD3
Set the excessive error detection width when servo ON in a special control (initial absolute position setting,
stopper control and etc.).
When "0" is set, excessive error detection will not be performed when servo ON during a special control.
---Setting range---
0 to 32767 (mm)
However, when SV084/bitC=1, the setting range is from 0 to 32767 (μm).
#2254 SV054 ORE
Set the overrun detection width in the full-closed loop control.
When the gap between the motor side encoder and the linear scale (machine side encoder) exceeds the val-
ue set by this parameter, it will be judged as overrun and "Alarm 43" will be detected.
When "-1" is set, if the differential velocity between the motor side encoder and the machine side encoder
exceeds the 30% of the maximum motor speed, it will be judged as overrun and "Alarm 43" will be detected.
When "0" is set, overrun will be detected with a 2mm width.
For linear servo/direct-drive motor system
Not used. Set to "0".
---Setting range---
-1 to 32767 (mm)
However, when SV084/bitD=1, the setting range is from -1 to 32767 (μm).
#2255 SV055 EMGx
Set the time required between an emergency stop and forced READY OFF.
Set the maximum value "+ 100ms" of the SV056 setting value of the servo drive unit electrified by the same
power supply unit.
When executing the vertical axis drop prevention, the gate off will be delayed for the length of time set at
SV048 even when SV055's is smaller than that of SV048.
Related parameters: SV048, SV056
---Setting range---
0 to 20000 (ms)
#2256 SV056 EMGt
Set the time constant used for the deceleration control at emergency stop.
Set the time required to stop from rapid traverse rate (rapid).
The standard setting value is EMGt≤G0tL×0.9.
However, note that the standard setting value differs from the above-mentioned value when the setting value
of "#2003:smgst Acceleration and deceleration modes bit 3-0:Rapid traverse acceleration/deceleration type"
is 8 or F. Refer to Instruction Manual of the drive unit (section "5.5.1 Deceleration Control") for details.
Related parameters: SV048, SV055
---Setting range---
0 to 20000 (ms)
#2257 SV057 SHGC
When performing the SHG control, set to SV003(PGN1)×6.
When not using the SHG control, set to "0".
When using the OMR-FF control, set to "0".
Related parameters: SV003, SV004
---Setting range---
0 to 1200 (rad/s)
IB-1501279-H
Dual feedback control non-sensitive band
Excessive error detection width in special control
Overrun detection width in closed loop control
Max. gate off delay time after emergency stop
Deceleration time constant at emergency stop
SHG control gain
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