Programming the "Cutting On the Fly" Utility
It is essential that the denominator product for the Movement ratio with the K0 denominator be less than 2
30
The drive should be Enable
The K0 ratio should be between 0.01 and 5 The cart should have come to rest. The preceding movement should be a G09 or G22 and should have the rest position as a position setpoint.
The distance between the * K0 * Movement ratio synchronization rest point and end point should be more than modulo/2 on channel 0
Code G98: l l
(Cutting distance on evt/K0) < modulo/2
(Cutting distance on evt/K0) * K0 *
Movement ratio > (Synchronization point position - Rest position)
Only the SMOVE with G22 instruction saves the control source point to memory. All other instructions or mode changes erase this memory.
If there is no control source point in the memory upon the next SMOVE with G22 instruction, the new control source point is equal to the conveyor belt position at the point at which the instruction was received plus the length of the Dist cut passed to parameters.
Dynamic
Condition for
Refusing
Command
A command is refused if:
When starting the tool, the module states:
Either the belt speed is too great in relation to the Vmax cart speed, or the synchronization distance is more than the distance between the synchronization point and the rest point.
Warning on
SMOVE with G22
"Value exceeded"
A warning is generated if the module states, when receiving the SMOVE with G22 instruction:
Either that the belt is too close to the control source point to cut, in which case, the module will calculate a new control source, which will allow cutting with the following formula:
New control source point = n * Dist + last control source point, where n is the smallest whole number which allows the cutting cycle to be implemented
Or that the control source point has been exceeded, in which case, the
FAIL_CMD_AUTO_COTE_DEPASSE 0x0042 Warning is given to the PLC at the beginning of the execution of G22.
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TLX DS 57 PL7xx
Programming the "Cutting On the Fly" Utility
Long Cut on
Event G98
Immediate Cut
A sensor detects the course of the product to be cut. When the event is received, the module memorizes the belt position and calculates the cutting point according to the following formula:
Control source point = Memorized position + Cutting distance on event.
The Dist parameter should have a value more than the cutting length on event so that the event triggers the tool. This forms a security system, if the event does not intervene during the final cutting distance.
Be careful not to disturb the event input on channel 0 when cutting on event.
To perform an immediate cut, the module should be in waiting phase 0 for starting a cart with the SMOVE with G22 instruction and receive a CoupeIm(%Qxy.1.20) rising edge command. The module will calculate the minimum cutting distance for a shorter piece than the one currently being carried out. The cutting position is saved as the control source for the next cut.
If the cart begins to move, the command for an immediate cut is ignored.
Operating Mode After carrying out each cutting instruction, the cut counter (%Iwxy.1.7) is increased.
While executing a G22, it is possible to prepare and send the module the consecutive cutting order at the end of the current cut, which can be identical or different to the current cut.
To halt the cutting operations using the cart at the rest point, it is possible to: l No longer send G22 and allow the current cuts (or those queuing in the module) to be completed l Send a Pause order to allow the current cut to be completed without moving on to the orders queuing in the module l Send a STOP order when the G22 is waiting (%Ixy.1.44)
The Feed hold command (via the CMV command reset) is ineffective.
The CMV alteration is ignored during the SMOVE with G22 command. Only the current CMV value present from the start of the command is taken into account.
A blocking fault on channel 1 stops the cart by exiting the synchronization status axis where it is.
Note: Alterations to your own parameters for the cutting on-the-fly are only adapted when the cart is at the rest point.
Comment: Detailed editing of the SMOVE with G22 instruction is not currently possible.
TLX DS 57 PL7xx
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