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Drive which lifts your crane efficiency to new heights

Drive which lifts your crane Drive which lifts your crane efficiency to new heightsefficiency to new heights

ACS800 Crane Drive Control


Standard, cost effective crane drive with built-in safety and performance

ACS800 Crane Drive Control


Safety Functions

For optimised performance

Control Functions

For excellent operational safety

Software Functions


Control InterfaceLogic HandlingReference HandlingSpeed and Torque ControlTorque MemoryPower OptimisationLimit Switch SupervisionMaster FollowerSpeed CorrectionSpeed monitor

Control Functions


Software hierarchy for ACC

Application macro

Crane M/F Control

Fieldbus Stand alone Fieldbus

Joystick

Radio

Motor Pot.

64.10

64.164.1

99.2

Stand alone

Joystick

Radio

Motor Pot.

64.10

Step joyst.Step joyst.

Step radio

FB joystick*

Step radio

FB joystick*

DDCS

CH2 communication

Master Follower


Control Interface: Joystick

Zero position + direction contactsStepped (4 levels) or potentiometer speed

reference 0-10V.4 wire potentiometer with centre

connection required

Control Functions: Joystick


Control Interface:Pendant controller

Direction commandsSpeed reference given with motor

potentiometer function

Control Functions: Pendant


Control Interface:Radio Controller

Hardwired I/O-connection between receiver and drive

Analogue reference from receiver +10VDirection commands

Control Functions: Radio Controller

Radio Controller


Fieldbus InterfacesTwo types of adapters available

DDCS link adapters placed outside the driveCANopenControlNetDeviceNetInterbus-SModbusModbus PlusProfibusEthernet module for remote

control&diagnostics (not a “fieldbus”)“New type” of modules placed inside the drive

Only profibus availableNew protocols coming later

Advant Module bus needs RDCO-01 adapter

Control Functions: Fieldbus


Logic Handling

Supervises starting and stopping of the driveMakes sure that motor is magnetised before startTakes care of starting sequences in different modes

&

&

1>

START

Control Functions: Logic Handling


Reference Handling

Individual setting of acceleration/deceleration ramp time for both directionsSmooth load handlingReduces crane structural loadsOptimises load cycleCustomises performance

t

nRef.

Control Functions: Reference Handling


Speed and Torque Control

Ensures minimum variation of speed under loadLoad independent performanceSmooth load handlingStart and stop times independent of loadDTC makes performance outstanding compared to other manufacturers

Control Functions: Speed&Torque Control

Ref.

M

PGFor hoist applications

+

-PID

Act.


Torque Memory

Minimises the risk of load drop on hoist drivesSafe load handling without jerksNo risk of jamming between load and floor

Control Functions: Torque memory


Power Optimisation

Ensures maximum hoist speed relative to the loadLowest possible cycle timeOptimises the crane capacityAutomatic start-up procedure for setting related parameters

TT

nTmax

min max

nTmin

Actual load

Allowed speed

Control Functions: Power Optimisation


Limit Switch Supervision

To ensure the crane operates within a safe working envelopeAll necessary logic is in the driveSafe operation with both pre and end limitsMotion outbound from limit area can happen with full speed

Control Functions: Limit Switches

Z

Y

X


Master Follower

Load sharing of two motor drives on the same shaftFor motions where requirements are too high for one motor or when redundancy is requiredAlso for application where two motors are coupled through a rigid structureMultiple slaves possible

Control Functions: Master/Follower

MM

~~

~~

Gearbox

Output shaft

DDCS optocable

Supply network


Electrical Shaft

Automatic correction of position error when used in synchronised operationAdjustable response for position error (P-controller)Pulse encoders must be usedTwo drives can be connected together

Control Functions: Electrical shaft

MM

~~

~~

Gearbox

Synchronized motion

Gearbox

DDCS optocable

Supply network


Mechanical Brake ControlTorque ProvingFast StopTorque MonitorFault Handling

Safety Functions


Mechanical Brake Control

Controls opening and closing of the brakesTotal control of brake performanceBrake fault generated if logic notices discrepancy between control and statusAdjustable parameters for different response timesPossible to use internal brake feedback

Safety Functions: Brake Control

ACS 800 Crane Drive

DO DI

Aux. Contact of the brake

Brake Voltage

Brake


Torque Proving

Ensures that the motor is able to produce sufficient torqueChecks the cabling and connections

T = ?T = ?

Safety Functions: Torque proving


Fast Stop

Stops the hoist as fast as possible when overloaded or when slack rope occursMechanical overloadsSlack ropeMovement is possible with reduced speed in the opposite direction of the fault

! ! !

Safety Functions: Fast stop


Torque Monitor

Supervises the correlation between speed ordered and actual motor speedPrevents starting in wrong direction due to windTrips the drive if overloaded or mechanical fault occursAdjustable parametersAllows difference during acceleration/deceleration

Reference speed =

Actual speed

Safety Functions: Torque Monitoring


Fault Handling/logging

Latest faults saved to fault loggerLogger can be read through control panel, drives window, upper controller, ethernet…..Also 2 dataloggers available in ACS 800 to provide more info from fault situationDataloggers can be triggered also to monitor other events, not just faults

FaultFault1

2

3

4

Safety Functions: Fault Handling/logging


The safe and cost-effectivecrane drive

Ready-to-use with proven modular crane functionality

Easy installation and start-up reduces time and cost

Smoothen crane operation and shorter cycle times

Low maintenance cost and longer mechanical life time

Skilled local service engineers for ACS 800 Crane Drive

Selected with standard option code +N652

ACS 800 Crane Drive Control

Documents

Drive which lifts your crane efficiency to new heightsaresureste.com/documentos/abb/Drives_Motor/Aplications/Cranes.pdfmotors Drive which lifts your crane efficiency to new heights