7technology applications – Lenze 8400 StateLine User Manual

Page 362

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7

Technology applications

7.4

TA "Switch-off positioning"

362

Lenze · 8400 StateLine · Reference manual · DMS 12.0 EN · 06/2014 · TD05/TD14

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bSetDCBrake

BOOL

Manual DC-injection braking (DCB)

• Detailed information on DC-injection braking is provided in the motor control

chapter, subchapter "

DC-injection braking

".

Note!

Holding braking is not possible when this braking mode is used!

Use the basic "

Holding brake control

" function for controlling the holding brake with

a low rate of wear.

FALSE Deactivate DC-injection braking.

TRUE Activate DC-injection braking, i.e. the drive is brought to a standstill

by means of DC-injection braking.

• The braking effect stops when the rotor is at standstill.

• After the hold time (

C00107

) has expired, the controller sets the

pulse inhibit.

bRFG_Stop

BOOL

Ramp function generator: Maintain the current value of the main setpoint

integrator

• The speed, for instance, of a running ramp process is immediately kept constant

when bRFG_Stop is activated. At the same time, the acceleration/deceleration

jumps to the value "0".

• For a detailed functional description see the

L_NSet

FB.

TRUE The current value of the main setpoint integrator is held.

nVoltageAdd_a

INT

Additive voltage impression

• An additional setpoint for the motor voltage can be specified via this process

input.

• If there are, for instance, different loads at the motor output end, it is possible to

apply a voltage boost at the starting time.

• If the value is negative, the voltage is reduced.

• Scaling: 16384 ≡ 1000 V

Stop!

Values selected too high may cause the motor to heat up due to the resulting

current!

nBoost_a

INT

Additional setpoint for the motor voltage at speed = 0

• The entire voltage-frequency characteristic is provided with an offset.

• Scaling: 16384 ≡ 1000 V

Stop!

Values selected too high may cause the motor to heat up due to the resulting

current!

nPWMAngleOffset

INT

Additional offset for the electrical angle of rotation

• If a torque is connected, e.g. dynamic acceleration processes can be generated.

• Scaling: ±32767 ≡ ±180 ° angle of rotation

Identifier

Data type

Information/possible settings

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