Lite-On Technology Corp.
Industrial Automation
75
5.4.
No-load speed test
Before the no-load speed test, secure the motor base as tight as possible to prevent the danger caused by the
counter force generated due to the variation in motor rotation speed.
STEP
1
：
Set the control mode of the drive to the speed mode (PA-00 set to 1). Restart the machine after
alteration to update the operating mode.
STEP
2
：
After restart, modify the setting of the digital input DI as follows:
Digital Input
Parameter Setting
Value
Description for the
Functional Definition
CN1 Pin No
DI1
PC-01 = 101
Servo on
Pin9
DI2
PC-02 = 107
Torque limit
Pin10
DI3
PC-03 = 109
Selection of the speed
command
Pin34
DI4
PC-04 = 10A
Selection of the speed
command
Pin8
DI5
PC-05 = 102
Error reset
Pin33
DI6
PC-06 = 0
No function
Pin32
DI7
PC-07 = 0
No function
Pin31
DI8
PC-08 = 0
No function
Pin30
DI9
PC-09 = 0
No function
Pin12
In the table above, the functions of the factory setting values CCW-limit (DI6), CW-limit (DI7) and
emergency stop (DI8) are canceled. The parameters PC-06~PC-09 are set to 0 (Disabled).
After the setting is complete, the motor must be restarted or the abnormality must be reset if any irregular
signal appears for the drive. If the abnormality is reset, the DI5 pin must be conducted to eliminate the
abnormality. The restart or reset is required because the factory setting value includes the CCW-limit, CW-
limit and emergency stop functions.
STEP
3
：
1)
The user makes the digital input DI1 conducted and the servo activated (Servo On).
2)
Open the circuit for the digital inputs DI3 (SPD0) and DI4 (SPD1). The motor operates based on the
analog voltage command.
3)
Only the digital input DI3 (SPD0) is conducted. The command of the motor rotation speed is the setting
value of PA-14.
4)
Only the digital input DI4 (SPD1) is conducted. The command of the motor rotation speed is the setting
value of PA-15.
5)
The digital input DI3 (SPD0) and DI4 (SPD1) are conducted simultaneously. The command of the
motor rotation speed is the setting value of PA-16.
6)
Steps (3), (4) and (5) may be repeated as wish. The user may also alter the setting values of PA-14~PA-
16 to change the rotation speed.
7)
To stop the drive, open the circuit for the digital input DI1 (Servo Off).
