
B-63943EN-1/02 5.AUTOMATIC OPERATION
- 555 -
The following parameters are also used to select how to handle
processing for CNC data when the CNC is reset.
- Bit 7 (MCL) of parameter No. 3203
Whether programs created in MDI mode are erased or stored
- Bit 6 (CCV) of parameter No. 6001
Whether custom macro variables #100 to #149 (or to #199) are
cleared or stored
- Reset & Rewind
When the reset & rewind signal RRW becomes 1, a reset and
rewinding are performed.
Rewinding is described below.
1. When a portable tape reader is connected to the selected
input/output equipment in DNC operation mode, the portable
tape reader is rewound.
The rewinding signal RWD is output while the portable tape
reader is being rewound. This signal becomes 0 when
rewinding is completed.
2. In cases other than the above, the beginning of the selected main
program is found. RWM (bit 2 of parameter No. 3001) can be
used to specify whether the rewinding signal RWD is output.
When RWM is 1
The rewinding signal RWD is kept 1 for 100 ms and then
becomes 0. Since the time required for finding the beginning of
the main program in memory is almost zero, the beginning is
already found by the time the rewinding signal RWD becomes 0.
Signal
External reset signal ERS<Gn008#7>
[Classification] Input signal
[Function] Reset the CNC.
[Operation] Turning the signal ERS to 1 resets the CNC and enters the reset state.
While the CNC is reset, the resetting signal RST turns to 1.
Reset & rewind signal RRW<Gn008#6>
[Classification] Input signal
[Function] CNC is reset and a program under an automatic operation is rewound.
[Operation] As described in the item, "Reset & Rewind".
Resetting signal RST<Fn001#1>
[Classification] Output signal
[Function] Notifies the PMC that the CNC is being reset. This signal is used for
reset processing on the PMC.
[Output condition] This signal is set to 1 in the following cases:
1. When the emergency stop signal (*ESP) is set to 0
2. When the external reset signal (ERS) is set to 1
3. When the reset & rewind signal (RRW) is set to 1
4. When MDI RESET key is pressed
This signal is set to 0 in the following case: