Toshiba TOSVERT VF-AS1 Instruction Manual page 142

Stopping procedure
At the stop command, the operation frequency is decreased to the creep frequency set with parameter
the creep frequency is maintained for the creep time set with
brake release signal is put out through the braking signal output terminal to apply the brake.
• @
Output frequency
[Hz]
Torque
RUN command
Ex.) When using the OUT1 terminal as the brake signal output terminal
Title
6
Learning function
Using this function, rough settings can be made automatically and also parameters
can be set automatically.
After making settings with the learning function, make fine adjustments if necessary.
[Learning operation]
Set parameter
appears (blinks) on the left side of the frequency displayed.)
Parameter
set based on the calculation result. At the stop of operation, parameters
(creep time) are set.
Note:Learning should be performed under light-load conditions.
For the braking functions, the pre-excitation time is automatically determined by the inverter from motor-
related constants.
When the VFAS1-2037PL is used in combination with a Toshiba 4P-3.7kW-60Hz-200V standard motor, the
preliminary excitation time is approximately 0.1 to 0.2 seconds.
Depending on the motor used, the preliminary excitation time may be prolonged.
Motor constant setting
When using braking functions, set parameter
auto-tuning 1) or set motor-related parameters
Torque control Speed control
Issue of torque command
Braking
Brake release request
Function
Output terminal function selection 1 (OUT1)
to and enter an operation command to start learning. (During learning, a "
(torque) is set, the brake release timing is calculated, and parameter
. While the creep frequency is maintained, the
Braking request
Adjustment range
~
(automatic torque boost) to
to .
F-30
E6581301
Creepinjg frequency
Time [s]
Example of setting
, and
"
(release time) is
(creep frequency) and
(voltage vector control +
and