Mitsubishi Electric M800 Series Manual page 713

M800/M80/E80/C80 Series Alarm/Parameter Manual
16 Machine Parameters
(PR) #51144+2(n-1)
"n" represents the SCA position No. (n = 1 to 16)
Specify the upper and lower limits of machine position determined as safe for each of SCA positions 1(-) to
16(-). If the command/FB position is in the SCA safe position or smaller while SCA is ON, the Safe cam po-
sition signal turns OFF. If the position has exceeded the SCA safe position, the Safe cam position signal turns
ON. The SCA safe position is calculated using the following equation.
(When the Safe cam position signal is ON)
SCA safe position = SCA position (-) – SCA hysteresis width
(When the Safe cam position signal is OFF)
SCA safe position = SCA position (-)
---Setting range---
-99999.999 to +99999.999 (mm)
#51175 SCA_Hysteresis
Specify the hysteresis widths that correspond to SCA positions 1 to 16. For details refer to SCA positions
1(+/-) to 16(+/-).
---Setting range---
0 to 99999.999 (mm)
(PR) #51176 SOS_Speed
Specify the upper limit of machine-end speed determined as a safe operating stop.
If the SOS_V detection delay time has elapsed with the command/FB speed exceeding the speed of this
parameter while SOS is ON, a safe stop (SS1 or STO) is executed.
The point of time at which the command/FB speed drops to that of this parameter or lower while SS1/
SS2 is ON is treated as a standstill.
*When this parameter is set to 0, "SOS speed error" may occur even though the axis is at a standstill.
---Setting range---
0 to 9999 (mm/min or °/min)
#51177 SOS_T1
Specify a period of time to detect a speed error while SOS is ON. If the period of time set in this parameter
has elapsed with the command/FB speed exceeding the SOS stop speed while SOS is ON, a safe stop (SS1
or STO) is executed.
---Setting range---
0 to 9999 (ms)
(PR) #51178 SOS_Droop
Specify the upper limit of machine-end position deviation determined as a safe operating stop. If the SOS_PD
detection delay time has elapsed with the position deviation (difference between the command and FB posi-
tions) exceeding that of this parameter while SOS is ON, a safe stop (SS1 or STO) is executed.
*When this parameter is set to 0, "SOS position deviation error" may occur even though the axis is at a stand-
still.
---Setting range---
0 to 9999.999 (mm or °)
#51179 SOS_T2
Specify a period of time to detect a position deviation error while SOS is ON. If a period of time set by this
parameter has elapsed with the position deviation (difference between the command and FB positions) ex-
ceeding the SOS position deviation tolerance while SOS is ON, a safe stop (SS1 or STO) is executed.
---Setting range---
0 to 9999 (ms)
(PR) #51180 SOS_PositionM
Specify the upper limit of machine-end travel distance (minus side) determined as a safe operating stop. If
the SOS_P detection delay time has elapsed with the command/FB travel distance in the minus direction ex-
ceeding that of this parameter while SOS is ON, a safe stop (SS1 or STO) is executed.
*When this parameter is set to 0, "SOS travel distance error" may occur even though the axis is at a standstill.
---Setting range---
0 to 9999.999 (mm or °)
IB-1501279-H
SCA_PositionMn
696
SCA position n(-)
SCA hysteresis width
SOS stop speed
SOS_V detection delay time
SOS position deviation tolerance
SOS_PD detection delay time
SOS travel distance tolerance (-)