User manual

9 Functions and operations in the position control mode
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Analog setting
1.
Set the system parameter for analog input signals [SyS-1-05] to “Enable.”
Note
When a system parameter has been changed, the new parameter will become
effective after the power is cycled. If a 24 VDC power supply is used, also cycle the
24 VDC power supply.
2.
Turn the M0 and M1 inputs OFF and select operation data No. 0.
3.
Connect an external potentiometer or external DC voltage to pins 4 to 6 of the analog I/O
connector (CN6).
Refer to p.42 for details on the connection method.
4.
Set the gain.
Set the torque limit value per 1 V of voltage command in the application parameter for analog torque
limit gain [APP-2-03].
Setting range: 0 to 300%
Initial value: 30%
5.
Adjust the offset.
If there is even a slight margin of error in the voltage value, the torque limit value may not become 0%
even when the voltage command specifies 0 V (minimum value). In this case, adjust the offset using one
of the two methods described below.
Automatic adjustment
1. Set the application parameter for analog input signal automatic offset [APP-2-06] to “Enable.”
2. Input 0 V to the analog input terminal (pin 5 of CN6).
3. Apply the offset for analog torque input using the OPX-2A or MEXE02.
Adjustment using a parameter
1. Set the application parameter for analog input signal automatic offset [APP-2-06] to “Disable.”
2. Set the offset voltage in the application parameter for analog torque limit offset voltage [APP-2-05].
6.
Use an external potentiometer or external DC voltage to set the torque limit value.
Setting example
Setting
example
Analog torque limit
gain [APP-2-03]
Analog torque limit offset
voltage [APP-2-05]
Description
① 30% 0 V
The torque limit value per 1 V of voltage command becomes
30%.
② 10% 0 V
The torque limit value per 1 V of voltage command becomes
10%.
③ 100% 0 V
The torque limit value per 1 V of voltage command becomes
100%.
④ 30% 1 V
The home position of voltage command becomes 1 V. The
gain of torque limit value is the same as in example①.
300
100
- 3 - 10 3
10
4
1
3
2
Voltage command [V]
Output torque [%]