Stop Position Control Function - Toshiba TOSVERT VF-AS1 Instruction Manual

6.21
• Function
This function, which is aimed at a retaining the load at standstill at its normal stop position, is used along
with the speed sensor vector control function to prevent the position of an elevator at standstill from
shifting.
Switching to position control takes place when the load is at a standstill.
The settings of these parameters take effect only in sensor speed control mode.
[Parameter setting]
Title
6
In speed control mode
control is performed upon receipt of a simple positioning signal, with the position at that time used as the reference
point (positional deviation: 0).
Note: This function will not be performed if
Ex.) When using the RR/S4 terminal as the simple positioning signal input terminal
Title

Stop position control function

: V/f control mode selection
: PID control switching
: PID control feedback control
signal selection
: Proportional (P) gain
Function
V/f control mode selection
PID control switching
PID control feedback control signal
selection
Proportional (P) gain
Number of PG input pulses
Number of PG input phases
Simple positioning completion range
or specified with the V/f control mode section parameter (
(stop frequency) are not set at 0Hz, because a 0-Hz command is not issued in that case.
Function
Input terminal function selection 8 (RR/S4)
: Number of PG input pulses
: Selection of number of PG
input phases
: Simple positioning
completion range
Adjustment range
:Constant torque
characteristics
:Voltage decrease curve
:Automatic torque boost
:Sensorless vector control 1
(speed)
:Sensorless vector control 2
(speed/torque)
:V/f 5-point setting
:PM control
:PG feedback vector control 1
(speed)
:PG feedback vector control 2
(speed/torque)
:No PID control
:Process type PID control
(temp./pressure, etc.)
operation
:Speed type PID control
(potentiometer, etc.) operation
:Stop retaining P control
:Deviation input (no feedback
input)
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:Optional AI1 (differential
current input)
:Optional AI2 (voltage/current
input)
: PG feedback option
~
~ pulses/revolution
:Single-phase input
:Two-phase input
~
(starting frequency),
Adjustment range
~
F-34
E6581301
Example of setting
), simple positioning
(operation starting frequency) and
Default setting