Single-channel all-digital AC servo drives QS7 Series
37
6.5
Internal Speed Control Servo System
When the system parameter is set to be P4 = 7, servo system is in the internal speed control
mode.
After the input signal MODE (level signal) is input and valid, the motor starts; after the
input signal INTH (NC signal) is input and effective, the motor stops. Speed is determined by
the input signals CW and CCW decision. Please see the below table:
MODE
signal
INTH signal
CCW signal
CW signal
Motor speed
0
0
1
1
0
0
P26(the max. rotational rate when
Vin=10V)analog control when
P35=0;
1
1
0
1
P36
1
1
1
0
P37
1
1
1
1
P38
6.6
Internal Four Section Position control servo system
When the system parameter is set to be P4 = 8, servo system is in the internal speed control
mode.
After the input signal MODE (level signal) is input and valid, the motor starts; after the
input signal INTH (NC signal) is input and effective, the motor stops. Speed is determined by
the input signals CW and CCW decision. Please see the below table:
MODE
signal
CCW signal
CW signal
Run Speed
Running length
1
0
0
P35
P39*(P12/13)
1
0
1
P36
P40*(P12/P13)
1
1
0
P37
P41*(P12/P13)
1
1
1
P38
P42*(P12/P13)
