Mitsubishi Electric 800 Series Instruction Manual (Function page 172

• The setting of Pr.359 Encoder rotation direction determines the motor rotation direction restricted by the LSP/LSN
signal.
LSP signal: After stopped, the motor cannot be rotated in the CCW (CW) direction when Pr.359 = "101 (100)" while the
signal is OFF (normally closed input).
LSN signal: After stopped, the motor cannot be rotated in the CW (CCW) direction when Pr.359 = "101 (100)" while the
signal is OFF (normally closed input).
• To input the LSP signal, set "88" in any parameter from Pr.178 to Pr.189 (Input terminal function selection) to assign
the function.
• To input the LSN signal, set "89" in any parameter from Pr.178 to Pr.189 (Input terminal function selection) to assign
the function.
• When the LSP signal or LSN signal is OFF (normally closed input), the Stroke limit warning (LP) signal is turned ON and
"LP" is displayed on the operation panel. To use the Stroke limit warning (LP) signal, set "24 (positive logic)" or "124
(negative logic)" in any parameter from Pr.190 to Pr.196 (Output terminal function selection) to assign the function.
LSP (normally closed input)
LSN (normally closed input)
Speed command
(before electronic gear)
*1 Turn ON the start signal 5 ms or more after the point table selection signal or JOG signal is turned ON.
*2 After the start signal is turned ON, the ON state should be retained for 20 ms or longer.
Stroke end input (normally closed input)
LSP (Forward stroke end)
ON
OFF
ON
OFF
NOTE
• The control method cannot be changed while the LSP or LSN signal is OFF (normally closed input).
• When position control is not selected, the LP signal and warning (LP) are available but the sudden stop using stroke end
signals is disabled.
 Roll feed mode 1 and 2 (Pr.1293)
• These modes are used in an application that needs repeated positioning in the same direction, such as a conveyor.
• When the roll feed mode 1 is selected (Pr.1293 = "1"), positioning operation is performed with the current position and
position command set to 0 at start. Position commands are not overflowed and the repeated feed by the increment is
available.
ON
RH signal *1
JOG signal *1
ON
STF signal *2
STR signal *2
CCW
0
CW
Position
command
Position
LP signal
LSN (Reverse stroke end)
ON
ON
OFF
OFF
Stop (servo lock)
CCW shift unavailable
ON
ON
ON
Slope set
by Pr.464
ON
Operation availability
CCW rotation
Available
Unavailable
Available
Unavailable
7.3 Simple positioning function by point tables
Time
Time
CW rotation
Available
Available
Unavailable
Unavailable
7. Position Control
1
2
3
4
5
6
7
8
9
10
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