Panasonic VF0 Series Instruction Manual page 44

DECELERATION FREQUENCY HOLD (Parameter P18)
When the set deceleration time is too short for the inertial load, this parameter can be used to
temporarily reduce the deceleration rate to prevent an overvoltage trip.
Data setting value
Note 1) Always set the setting data to "0" when using the regenerative brakes.
Note 2) The regenerative brake specifications are shown below. Always consider the
Note 3) Always use the Matsushita-dedicated option for the brake resistor.
SW1, SW2, SW3 FUNCTION SELECT (Parameter P19, P20 and P21)
Used to set the control functions of SW1, SW2 and SW3 (control circuit terminals No. 7, 8
and 9).
(Also read the supplementary details on pages 68 to 72.)
Function
setting switch
parameter No.
43
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0 Stall prevention function disabled
1 Stall prevention function enabled
(The regenerative brake function will not operate when the default data "1" is set.)
working conditions carefully before using.
Note that the inverter could be damaged if the specifications are exceeded during
use.
1) Maximum duty factor (%ED): 2%
3) Braking torque: 100%
Refer to the precautions on page 15 for installing the brake resistor, etc.
SW1 (terminal No. 7)
Setting
P19
0 Multi-speed SW1 input
1 Reset input
2 Reset lockout input
3 Jog selection input
4 Auxiliary stop input
5 Coast-to-stop input
Frequency signal
6
changeover input
2nd characteristics
7
selection input

8
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Function details
2) Maximum working time: 3 seconds
SW2 (terminal No. 8)
P20
Multi-speed SW2 input
Reset input
Reset lockout input
Jog selection input
Auxiliary stop input
Coast-to-stop input
Frequency signal
changeover input
2nd characteristics
selection input

SW3 (terminal No. 9)
P21
Multi-speed SW3 input
Reset input
Reset lockout input
Jog selection input
Auxiliary stop input
Coast-to-stop input
Frequency signal
changeover input
2nd characteristics
selection input
Frequency , setting