19
7.6 DMS2
Main properties of DMS2:
–.. .Complete.control.of.the.actuator.run.of.the.two-.and.three-position.regulation.or.connection.to.the.industrial.bus.Profibus..
–.. Synoptic.signalization.of.operation.and.service.data.on.the.character.LCD.display.2.x.12..
–.. .Autodiagnostics.of.error.reports.on.the.LCD.display,.memory.of.recent.failures.and.number.of.occurrences.of.respective.
failures..
–.. Setting.of.parameters.by.the.PC.program.and.by.local.control.provided.that.the.actuator.is.fitted.with.local.control..
Basic outfit:
The.control.unit.is.the.main.part.of.the.system.DMS2;.it.comprises:
–. Microcomputer.and.memory.of.parameters
–. Position.sensors
–. 2.signalling.LED
–. .Connectors.for.connecting.the.torque.sensor,.relay.board,.and.two-position.inputs,.source.board,.communication.
adapter,.LCD.display,.and.local.control
Torque unit provides.for.scanning.torque.by.the.contactless.sensor
Source unit –.two.types.exist:
DMS2.ZAN.for.the.two-position.or.three-position.control.of.the.actuator.by.binary.signals.“Open”.and.“Close”.or.by.
analog.signal.0
(4)
.–.20.mA.
DMS2.ZPR.for.controlling.the.actuator.by.the.industrial.bus.Profibus.
Both.units.include.the.feeding.source.for.electronics,.two.relays.for.controlling.the.power.switches.
(contactors or
contactless switches)
.of.the.electric.motor,.guarding.of.sequence.of.phases
(in case the actuator is fed by three-phase
voltage),
circuits.for.connecting.the.anticondensation.heater,.and.input.terminals.for.connecting.the.thermo-contact.
from.the.electric.motor..The.units.are.fitted.with.the.power.terminal.board.for.connecting.the.power.supply..The.units.
are.fitted.with.a.connector.for.the.display.and.local.control.
Unit DMS2ZAN also contains:
–. .input.circuits.for.the.two-position.and.three-position.control.of.the.actuator.and.terminals.for.connecting.external.
control.signals.
–. input.of.signal.SAFE.–.information.on.external.failure
–. .relay.–.total.of.five;.four.
(signalling)
.can.be.set.for.reporting.of.position,.torque,.or.other.operation.states.of.the.
actuator;. the. fifth.
(Ready)
. is. used. for. reporting. of. errors,. warnings,. and. other. states. when. the. actuator. cannot.
faultlessly.perform.its.function,.and.the.terminals.to.which.contacts.of.the.relay.are.connected
–. circuits.of.the.feedback.current.signal.–.information.on.position.of.the.actuator.output.shaft
Unit DMS2.ZPR also contains:
–. .circuits.for.communication.with.the.superior.control.system.through.the.industrial.bus.Profibus.DP,.input.and.output.
terminals.for.connecting.the.bus,.and.termination.resistors.with.a.switch.
Display unit –.two-row.display,.2.x.12.alpha-numeric.characters
Unit of push-buttons –.sensors.of.push-buttons.“open”, “close”, “stop”.and.the.rotary.switch.“local, remote, stop”.
The actuator can be fitted with contactors.
7.7 PROCEDURE OF SETTING PARAMETERS BY PROGRAM DMS2
Before.putting.the.actuator.into.operation,.it.is.necessary.to.set.some.parameters.of.the.system.by.means.of.
program.DMS2.on.PC.
Before.adjustment,.check.the.actuator.according.to.the.paragraph.ASSEMBLING.AND.PUTTING.THE.ACTUATOR.INTO.
OPERATION.
Warning:
For safety reasons (reduced risk of damage to the actuator by wrong wiring), the system is delivered in the state of
the induced error of CALIBRATION when the functions are limited and, during controlling the actuator from program
DMS2, its run is stopped if any torque is induced.
Note:
The setting program is the same for electronics DMS2 ED. See the figure on page 11 for the main window
and the window of Selection of electronics.
