Lenze 8400 User Manual

Lenze · 8400 HighLine · Reference manual · DMS 12.0 EN · 06/2017 · TD23 499
8 Basic drive functions (MCK)
8.2 Internal interfaces | System block "LS_MotionControlKernel"
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
In the interconnection previously shown, the Motion Control Kernel monitors every interface. Some
of the signals such as a quick stop request or a DC-injection braking request are directly passed
through to the motor control. However, other signals are passed through or modified depending on
the operating mode (e.g. synchronising a setpoint selection via ramp function).
8.2 Internal interfaces | System block "LS_MotionControlKernel"
In the Function Block editor, the system block LS_MotionControlKernel provides the interfaces to
the Motion Control Kernel.
Inputs
Designator
Data type
Information/possible settings
Control and setpoint signals for motor control
The purpose of the following inputs is to transfer control signals and setpoints to the internal motor control
function (LS_MotorInterface
).
bPosCtrlOn
BOOL
Activation of position/angle control
FALSE Position/angle control deactivated.
TRUE Position/angle control activated.
bDeltaPosOn
BOOL
Activate position difference as setpoint selection
• In order to position the motor shaft, the position control
function can work
within the motor control function with the absolute position setpoint
dnPosSetValue_p or alternatively with the speed setpoint nSpeedSetValue_a and
the position difference dnDeltaPos_p.
FALSE Positioning with position setpoint dnPosSetValue_p.
TRUE Positioning with speed setpoint nSpeedSetValue_a and position
difference dnDeltaPos_p.
Note: In this case, no
position encoder should be set to ensure a
correct function (C00490
= "No encoder: nSpeedSetValue_a").
dnDeltaPos_p
DINT
Position difference (following error input)
• Difference between setpoint position and actual position in [increments]
•Is used for position control
if bDeltaPosOn = TRUE.
• Scaling: A revolution is displayed with 65536 increments or steps.
dnPosSetValue_p
DINT
Absolute position setpoint in [increments]
•Is used for position control
if bDeltaPosOn = FALSE.
• Scaling: A revolution is displayed with 65536 increments or steps.
bPosDerivativeOn
BOOL
Create a setpoint for the speed controller from the position setpoint
• For highly dynamic control systems, the setpoint for the speed controller can be
created from the absolute position setpoint dnPosSetValue_p instead of the
speed setpoint nSpeedSetValue_a Position control/additive speed specification
TRUE Create a speed setpoint from the position setpoint.
• The absolute position setpoint dnPosSetValue_p is differentiated
and a speed value is created which is the setpoint for the speed
controller.
• Internal limitation of 65536 increments/ms.
bReserved01
BOOL
Reserved
dnPosRefValue_p
DINT
Home position in [increments]
• Value is adopted when control bit 9 ("HomeSetPos") is set from "0" to "1" in the
MCK control word
and is sent to the motor control function via the
dnMotorRefOffset_p_ output.
• Transfer is possible in any operating mode ("Homing on the fly").
• For this function, the dnPosRefValue_p_ output must be connected to the input
of the same name of the SB LS_MotorInterface
.

Lenze 8400 Specifications

General

Category	DC Drives
Series	8400
Protection class	IP20
Control Type	Vector control
Communication	CANopen, PROFIBUS, Ethernet
Protection Features	Overcurrent, overvoltage, undervoltage, overtemperature
Input Voltage	AC 230/400/480 V