Using The Servo Lock Function; Modifying Output Terminal Functions; Output Terminal Function Selection - Toshiba TOSVERT VF-AS1 Instruction Manual

6.3.3 Using the servo lock function

• Function
As with the operation of a server motor, these parameters allow you to operate the motor at 0Hz by simply
issuing an operation signal. These parameters are used to hold the motor at a standstill.
[Parameter setting]
Title
Note 1: This function is enabled only when parameter
Note 2: To activate servo lock, parameter
Note 3: These parameters are not intended for position control, and if a load larger than the holding power of the
motor is applied, the motor rotates. Keep this in mind.
If parameter
signal. In that case, turning on the signal to the ST terminal activates the servo lock function. Note that even when the
servo lock function is activated, or the operations can be performed normally by inputting an F or R signal.
Output frequency [Hz]
6
Servo lock signal
+ST signal
F signal
R signal
Even if the motor is started with servo lock activated, a starting torque of 150% or more can be produced.
In such a case, however, the thermal protection level is lowered just as is the case with low-speed operation.
Therefore, the following parameters
•
•
•
•
need to be adjusted according to the motor.

6.3.4 Modifying output terminal functions

⇒ For details, refer to Section 7.2.2.
: Input terminal function selection 3 (ST)
: Starting frequency setting
Function
Input terminal function selection 3 (ST)
Starting frequency setting
(for selecting a function for the ST terminal) is set to
0
Coasting
(Thermal protection characteristic selection)
(Motor electronic-thermal protection level 1),
(OL reduction starting frequency)
(Motor 150%-overload time limit)
: Output terminal function selection 1 (OUT1)
: Output terminal function selection 2 (OUT2)
: Output terminal function selection 3 (FL)
~

: Output terminal function selection 4~9

~ : Output terminal function selection 10, 11
Adjustment range
~
~ [Hz]
is set to (PG feedback vector control 2).
(starting frequency setting) needs to be set to
Servo lock status
, ,
F-8
E6581301
Example of setting
[Hz].
, a servo lock signal is added to the ST
Time [s]