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Appendixes – Panasonic MDDDT5540 User Manual

Page 87

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- App. 13 -

Appendixes

*1. The value of t1 is the value of Pr6B or the time needed for decreasing the motor speed to

about 30 r/min , which is shorter.

*2. During deceleration, Servo-ON does not become active until the motor stops, even if you

attempt to turn on SRV-ON again.

*3. For the operation of the dynamic brake at Servo-OFF, see the explanation of Pr69 in

"Details of Parameters".

Servo-ON/OFF operation when the motor is in operation

With Servo-ON entered

With Servo-OFF entered

Servo-OFF

Servo-ON

Released

Energized

Released (ON)

Braking

Not energized

Operation (OFF)

Dynamic brake

Motor energized

Servo-ON becomes active about 50ms after the
motor speed becomes about 30 r/min or less.

Brake release
(BRK-OFF)

Servo-ON
(SRV-ON)

approx. 50 ms

approx. 10 ms

Motor speed

approx. 30 r/min

A

B

approx. 1 to 5 ms

Servo-ON

Servo-OFF

Braking 3

t1 1

2

2

Not energized

Operation (OFF)

Operation (OFF)

Released

Energized

Released (ON)

approx. 30 r/min

approx. 30 r/min

Released (ON)

Dynamic brake

Motor energized

Motor speed A

Brake release
(BRK-OFF)
Motor speed B

Brake release
(BRK-OFF)

Servo-ON
(SRV-ON)

t1 1

Set by Pr6B

Set by Pr6B

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