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E6581528
F-43
6
0
4mA 20mA
0V
-100%
+10V
-10V
0%
100%
+100%
100%
Torque produced
by motor
Torque produced
by motor
Torque produced
by motor
0
0V
10V
RX-CCA
II-CCA
RR/S4
-CCA, VI-CCA
[Parameter setting]
Title Function Adjustment range Default setting
Power running torque limit 1 selection
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:
Regenerative braking torque limit 1
selection
:VI/II (voltage/current input)
:RR/S4 (potentiometer/voltage
input)
:RX (voltage input)
:
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 Function Adjustment range Default setting
Acceleration/deceleration operation after
torque limit
: In sync with
acceleration/deceleration
: In sync with min. time