38
Instruction and maintenance manual
ENGLISH
3.3 Model ST200X
The.rated.operating.voltage.of.this.controller.varies.
according.to.the.type.of.magnetic.chuck.to.which.it.
is.connected.
The.control.push-button.is.external,.but.can.also.be.
integrated.into.the.controller.
The.control.electronics.are.enclosed.in.a.metal.hous-
ing..The.metal.material.of.the.housing.is.grounded.in.
order.to.guarantee.maximum.safety.during.the.ena-
bling.cycles.
It.is.important.to.verify.that.the.grounding.system.is.
always.in.good.working.order.
The.controller.does.not.have.a.socket.for.the.con-
nection.to.the.power.supply..The.controller.has.an.
ON–OFF.(0-1).switch,.thus.to.adequately.protect.it.
against.short.circuits,.it.is.necessary.to.install.a.suit-
able.protection.system.upstream.from.the.controller..
It. is. generally. advisable. to. use. a. magneto. thermal.
switch.(curve.C).with.an.I
n
.value.compliant.with.the.
rating. specified. on. the. magnetic. chuck. nameplate.
that.will.be.connected.to.the.controller.
The. maximum. power. of. controller. ST200X. is. ap-
proximately.25kW.per.discharge.if.the.single.phase.
power.supply.is.400V,.15kW.for.power.supplies.of.
230V.and.30kW.for.power.supplies.of.480V..The.ab-
sorbed.current.is.impulsive.with.a.cycle.time.around.
a. few. hundreds. of. milliseconds. (approximately. 1.
second.per.discharge).
ST200X. controllers. are. suitable. to. power. single.
chucks. or. chucks. that. are. part. of. large. magnetic.
banks
When. using. chucks. with. a. different. rated. voltage,.
install. a. transformer. with. a. suitable. transformation.
ratio.and.a.rated.power.that.matches.the.maximum.
power.of.the.chuck.
It. is. also. possible. to. order. a. compact. version. for.
ST200-QE.electric.cabinets.with.supporting.terminal.
board,.to.power.the.controller.and.magnetic.chuck,.
with.interface.connector.and.push-button.panel.
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