Sanken SVCO6, Инструкция по эксплуатации, Страница: 80 / 326

- 78 -
6-2 Test Run
Note 1: If both input signals FR (Forward) and RR (Reverse) are input at the same time, then the inverter will not operate.
And if both signals are simultaneously input during operation, then [Output Frequency Lock] will act. If this is
done during accelerating or decelerating, the change of output frequency will also be locked and RREV (Reverse
revolution function will be disable. When the output frequency is locked, the FWD and REV on the operation
panel will be lit.
Note 2: If the operation signal is turned off and a signal to drive the motor in the opposite direction from the present
direction of rotation is input before the inverter stops, the inverter operates according to the value of F1001
(motor control mode selection).
• F1001 = 1 (V/f control mode) and F1309 = 0
The inverter operates according to the function code settings when starting and stopping. Consequently, the
change in output frequency around 0 Hz may not follow a straight line, depending on settings such as the
starting frequency. Since DC braking does not work when reversing the direction of rotation, set the DC
braking start frequency low.
• F1001 = 1 (V/f control mode) and F1309 = 1
A process of continuous deceleration to acceleration in the opposite direction, which has nothing to do with the
relevant function codes for starting and stopping.
• F1001 = 2 (Speed sensorless control mode), 3 (speed sensor control mode)
Braking excitation or starting excitation is not applied when switching the direction of rotation. This allows
―forward and reverse run‖ in a continuous operation.
Note 3: During torque control, the direction of motor rotation depends on the load side, therefore, both FR (Forward run)
and RR (Reverse run) signals are provided with the function of setting ON / OFF of torque control. Because this
function has nothing to do with the direction of rotation, please only use one of FR and RR during torque control.
Forward run Forward run
Reverse run Reverse run
Frequency Frequency
Starting frequency
Time Time
Starting frequency
[V/f control mode (F1309=1)]
[V/f control mode (F1309=0)] [Speed sensorless or speed sensor control mode]
Figure 6-3 External operation command action (When F1309 change the setting)