Gear Ratio Changes While In Operation - Panasonic FP7 User Manual

8.3.3 Gear Ratio Changes while in Operation

 Precautions for gear ratio changes while the positioning unit is in operation
• If the gear ratio is changed with a new gear ratio while the electronic gear is in operation, the
new gear ratio will be effective with an elapse of a preset gear change time.
• If the gear ratio change time is 1, the gear ratio will be changed at an
acceleration/deceleration time of 0.
• Acceleration or deceleration during the gear ratio change results in linear acceleration or
deceleration. S-shaped acceleration or deceleration cannot be used.
Gear ratio numerator/Gear ratio denominator
Gear ratio change request signal
 Programming
Follow the procedure below and write a user program in the case of changing the gear ratio
while the positioning unit is in operation.
1. Change the gear ratio.
Change the gear ratio numerator and denominator of the electronic gear in the setting area for
the electronic gear.
The gear ratio at the time of starting the positioning unit is set for this area. It is recommended
to save the initial gear ratio before change so that the initial gear ratio can be reused with
ease.
2. Turn ON the gear ratio change request contact.
Turn ON an I/O signal (electronic gear ratio change request) for the target axis allocated to
the unit.
This signal enabled is of edge type. Starts the gear ratio change triggered by the gear ratio
change request signal turned ON.
 I/O allocation
Signal name
Synchronous slave axis gear ratio
change request
Synchronous slave axis gear ratio
change request
Turn OFF the gear ratio change request signal after changing the gear ratio.
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100 ／ 100
Gear ratio change time
Speed [V]
Gear ratio change time
1st axis
Y90
X90
200 ／ 100
1
Gear ratio change time
(1 ms)
2nd axis
Y91
X91
8.3 Electronic Gear Function
50 ／ 100
100
(100 ms)
Input speed
Output speed
Time [T]
3rd axis 4th axis
Y92 Y93
X92 X93
8-9