Torque Limit Mode Selection At Acceleration/Deceleration - Toshiba TOSVERT VF-AS1 Instruction Manual

RX-CCA
Torque produced
by motor
-10V
[Parameter setting]
Title

Power running torque limit 1 selection
Regenerative braking torque limit 1

selection
In torque control mode, the values set with these parameters limit torque command values. Torque limits may not be
set properly when the V/f constant mode, square reduction mode, or automatic torque boost mode is selected.

6.25.2 Torque limit mode selection at acceleration/deceleration

 : Acceleration/deceleration operation after torque limit
• Function
Using this function in combination with the mechanical brake of the lifting gear (such as a crane or hoist)
makes it possible to minimize the delay before the brake starts working, and thus prevents the load from
falling because of a decrease in torque.
Moreover, it improves the motor's response during inching operation and keeps the load from sliding down.
[Parameter setting]
Title
Acceleration/deceleration operation after

torque limit
+100%
0%
0V
+10V
-100%
Function
Function
F-43
RR/S4 -CCA, VI-CCA
100%
Torque produced
by motor
0
0V
II-CCA
100%
Torque produced
by motor
0
4mA
Adjustment range
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:
Adjustment range
: In sync with
acceleration/deceleration
: In sync with min. time
E6581528
10V
20mA
Default setting

6

Default setting
