2 interface description, Interface description, 7drive application – Lenze 8400 BaseLine D User Manual

Page 128

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7

Drive application

7.2

Interface description

128

Lenze · 8400 BaseLine D · Reference manual · DMS 5.5 EN · 01/2014 · TD05

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7.2

Interface description

Tip!
You can change the preconfigured assignment of the respective input via the configuration

parameters given in the first column.

User-defined terminal assignment

( 115)

Inputs

Identifier

Data type

Configuration parameters

Information/possible settings

nMainSetValue_a

INT

C700/1

Main speed setpoint

• Scaling: 16384 ≡ 100 % reference speed (

C011

)

• The main setpoint is transformed to a speed setpoint in the setpoint encoder via

a ramp function generator with linear or S-shaped ramps.

• Upstream to the ramp function generator, a blocking speed masking function

and a setpoint MinMax limitation are effective.

• For a detailed functional description see FB

L_NSet

.

nTorqueMotLim_a

nTorqueGenLim_a

INT

C700/2...3

Torque limitation in motor mode and in generator mode

• These input signals are directly transferred to the motor control to limit the con-

troller's maximum torque in motor and generator mode.

• The drive cannot output a higher torque in motor/generator mode than set here.

• The applied values (any polarity) are internally interpreted as absolute values.

• If sensorless vector control (SLVC) is selected, the limitation has a direct effect on

the torque-producing current component.

• Scaling: 16384 ≡ 100 % M

max

(

C057

)

Torque limits in motor and generator mode:

Device control
bCInh

BOOL

C701/1

Enable/Inhibit controller

FALSE Enable controller: The controller switches to the "

OperationEnabled

"

device state, if no other source of a controller inhibit is active.

C158

provides a bit coded representation of all active sources/

triggers of a controller inhibit..

TRUE Inhibit controller (controller inhibit): The controller switches to the

"

SwitchedON

" device state.

bFailReset

BOOL

C701/2

Reset of error message

In the Lenze setting this input is connected to the digital input controller enable so

that a possibly existing error message is reset together with the controller enable (if

the cause for the fault is eliminated).

TRUE The current fault is reset, if the cause for the fault is eliminated.

• If the fault still exists, the error status remains unchanged.

n

N

M

N

M

-M

N

-n

N

n

TorqueMotLim

TorqueGenLim

TorqueMotLim

TorqueMotLim

TorqueGenLim

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