9. MANUFACTURER FUNCTIONS
9 - 25
9.5.9 Operation
POINT
When using simple cam function, execute operation so that the machine speed
of the input axis is equal to or less than "[Cam control data No. 48 - Cam axis
length per cycle] × 1/2 × 1000 [command unit/s]". When [Cam control data No.
30] is set to "1", the unit of the cam axis length per cycle will be changed to
[mm], [inch], or [pulse] with the setting of [Pr. PT01]. When [Cam control data
No. 30] is set to "2", the unit of the cam axis length per cycle will be changed to
[mm], [inch], [degree], or [pulse] with the setting of [Cam control data No. 14].
A rotary knife system is shown as an example of the operation of the simple cam function.
(1) Configuration example
The rotary knife cuts the sheet conveyed by the conveyor at a constant speed into a desired length.
The cutting positions are compensated based on detection of the registration marks printed on the sheet
to prevent variations in the sheet length and deviations in cutting position.
Rotary knife axis
Touch probe
Synchronous encoder
Servo motor for driving the cam axis
A/B-phase output
Conveyor axis
A belt conveyor is driven by an inverter or
another servo amplifier.
MR-J4-GF-RJ
servo amplifier
Machine speed (Note)
Note. Set the machine speed of the input axis to a value that satisfies the following equation.
Machine speed
≤
[Cam control data No. 48 - Cam axis length per cycle] × 1/2 × 1000 [command unit/s]
To check the machine speed, monitor the main axis current value with the graph function of MR Configurator2.
The machine speed is calculated as follows:
Machine speed = (L2 - L1)/(T2 - T1)
Main axis current value
Time
T2
T1
L1
L2
Summary of Contents for MR-J4-_GF
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Page 185: ...8 TROUBLESHOOTING AT POWER ON 8 2 MEMO ...
Page 227: ...9 MANUFACTURER FUNCTIONS 9 42 MEMO ...
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