Sanken Samco SVC06, Instruction Manual, Page: 78 / 136

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6-2 Test run
(3) Operation preparation
After confirmation of test run and normal operation confirmation of motor, please implement the
connection with the mechanical system.
1 Please set the function codes related to machine action.
2 Check the interface matched with peripheral mechanical equipment.
(4) Operation confirmation
Before delivery, various functions of the inverter have been set up as shown in the function code list.
If change of settings of operation command is required, please refer to [5-6 Basic Operation] for
implementation.
(5) Operation methods besides commands from operation panel
■Operation by commands from external signals
1 When controlling operation / stop according to external signals, please set the function code F1101 to 2,
that is, F1101 = 2.
2 When carrying out frequency setting by external potentiometer, 4
-
20mA, 0
-
10V etc., please set the
function code F1002 = 2
-
20.
3 Please refer to [4-6 Connection Diagram of Control Circuit Terminals] for correct use of external signals.
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 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 6-2 External operation command action