Stop Position Control Function (Vf-As1 Only) - Toshiba TOSVERT VF-AS1 Instruction Manual

4.1.9.Stop position control function (VF-AS1 only)

* Parameter
Title
pt
V/f control mode selection
f359 PID control switching
PID control feedback control
f360
signal selection
f362 Proportional (P) gain
f375 Number of PG input pulses
f376 Number of PG input phases
Simple positioning completion
f381
range
Note: This function will not be performed if f240 (starting frequency), f241 (operation start-
ing frequency) and f243 (stop frequency) are not set at 0Hz, because a 0 Hz command
is not issued in that case.
* Functions
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 ele-
vator 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.
In speed control mode 7 or 8 specified with the V/f control mode section parameter (pt),
simple positioning control is performed upon receipt of a simple positioning signal, with the
position at that time used as the reference point (positional deviation: 0).
If the number of PG pulses is smaller than the area of f381, that signal can be output on
a terminal block that is set to the 118 as output terminal function.
Function
0: Constant torque characteristics
1: Voltage decrease curve
2: Automatic torque boost
3: Sensorless vector control 1 (speed)
4: Sensorless vector control 2 (speed/torque)
5: V/f 5-point setting
6: PM control
7: PG feedback vector control 1
8: PG feedback vector control 2
0: No PID control
1: Process type PID control
2: Speed type PID control
3: Stop retaining P control
0: Deviation input (no feedback input)
1: VI/II (voltage/current input)
2: RR/S4 (potentiometer/voltage input)
3: RX (voltage input)
4: Optional AI1 (differential current input)
5: Optional AI2 (voltage/current input)
6: PG feedback option
0.01 - 100.0
1 - 9999 pulses/revolution
1: Single-phase input
2: Two-phase input
1 - 4000
Adjustment range
(speed)
(speed/torque)
(temp./pressure, etc.) operation
(potentiometer, etc.) operation
17

E6581319
Example of
setting
0
3
6
0.01
500
2
100