Mitsubishi Electric M800VW Series Programming Manual page 628

M800V/M80V Series PLC Programming Manual (2/2)
14 PLC Help Function
14.10 Arbitrary Reverse Run
 The following shows the movement when the "Reverser run" (VRV) signal is turned ON/OFF in different operation states.
Operation
The "Reverse run" signal is turned ON/OFF
during the automatic operation
The "Reverse run" signal is turned ON
during the block pause
The "Reverse run" signal is turned ON
during the block stop
 In the following case, NC outputs "M01 OPERATION ALARM (0119)", decelerates and stops the movement.
- All the saved reverse run information have been consumed in the reverse run
- In the normal operation (not in the reverse/forward run) while the "Reverse run control mode" signal is ON, 8 consecu-
tive blocks with no movement have been detected.
 The "Automatic operation "pause"" (*SP) signal and the "Single block" (SBK) signal are available in the reverse run.
 If the following signals are turned ON during the reverse run, NC resets the whole automatic operation.
- "NC reset 1" (NRST1)
- "NC reset 2" (NRST2)
- "Reset & rewind" (RRW)
The setting value of the parameter "#1338 rev data save trg" decides as fol-
lows.
0: The movement stops immediately. A block stop is executed.
The next cycle start executes the reverse/forward run according to the "Re-
verse run" signal.
1: The movement does not stop immediately.
A block stop or block pause is required to execute the reverse run. The next
cycle start after the block stop executes the reverse/forward run according to
the "Reverse run" signal. The next cycle after the block pause runs the re-
maining distance before executing the reverse/forward run following the "Re-
verse run" signal.
The next cycle runs the remaining distance before executing the reverse/for-
ward run following the "Reverse run" signal.
The next cycle executes the reverse/forward run following the "Reverse run"
signal.
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Operation
IB-1501668-B