E-T-A E-1071-623 Manuel - Sayfa 7

Kontrolör E-T-A E-1071-623 için çevrimiçi göz atın veya pdf Manuel indirin. E-T-A E-1071-623 12 sayfaları. Solid state remote power controller

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Solid State Remote Power Controller E-1071-

Description

The E-T-A Solid State Remote Power Controllers E-1071-623/627

are electronic control modules suitable for inductive loads such as

electromagnetic valves (solenoids), magnetic brakes etc.

They are used:

•

for safe and quick switching of loads

•

for monitoring the electrical condition of the loads

•

for compensating different cable lengths

The load connected to the relay should be operated with a higher voltage

(DC 28...60 V) than its rated voltage (DC 24 V) because the load current

is controlled electronically (pulse-controlled characteristics). This is

to ensure that in industrial plants with different cable lengths (supply

cables, load cables) an increased inrush current can be applied to

each load. During hold duty the load current is reduced to a smaller

value (approx. 60 % of the current rating), thus reducing the operating

temperature and extending the life of the loads.

The double pole electronic switching output prevents inadvertent

start-up or dangerous machine movements as may arise upon a

ground fault in systems with ungrounded power supply ('IT systems')

(see EC Machinery Directive or EN 60204 part 1 "Safety of Machinery

- Electrical Equipment of Machines", para 9.4.3.1).

Typical applications

●

Double pole switching of inductive actuators such as electromagnetic

valves or magnetic clutches in machinery and equipment

●

Monitoring the electrical operability of loads

●

Protection and monitoring of load circuit cables

●

Status indication, failure indication in load circuit visually

(via LEDs or red tripped button) and via potentialfree status outputs

●

Double pole split up of the load circuit manually or electrically in

the event of overload or short circuit

Features

●

Designed for inductive loads (DC 24 V)

●

Individual adjustment to various load currents

(standard: I

= 0.1...3.1 A and/or 10 mA...310 mA)

●

Significant reduction of power loss in the load by pulse-controlled

characteristics

●

Double pole switching output, short-circuit proof (short-circuit

limitation); physical disconnection from supply

●

Inrush current and holding current monitoring

●

Physical isolation:

- optocoupler in the control circuit

- physical disconnection of load circuit, manually or in the event

of a short circuit

- optocoupler for status outputs

●

Reverse polarity and overvoltage protection in the control, load

and status circuits

●

Control current indication by YELLOW LED

●

O.K. indication by GREEN LED

●

Wire break indication by RED LED (load circuit)

●

Fault indication by RED LED

(short circuit, over/undervoltage, setting error)

●

Two status outputs for PLCs for evaluation

(status indication, ON indication)

●

Quick disconnection (do not connect a free-wheeling diode to the

load as the free-wheeling current is controlled electronically)

Break time < make time

Issue C

Technical data (T

Rated voltage

Operating voltage U

Current rating I

Current consumption I

= »0«)

Residual ripple for

all voltages

Reverse polarity protection U

Fail Save

Insulation voltage

Load circuit

Load output

Load rating

Switch-on current I

Holding current I

Short circuit

disconnection current

Wire break monitoring

Physical isolation

Current measuring plugs

Free-wheeling circuitry

(see Technical description)

Control circuit

Control

Control voltage U

Control current I

Switching frequency f

Control signal (U

= »1«)

Protection

Status outputs

2 signal outputs

ON indication

(terminal 8)

Function indication

(terminal 9)

www.e-t-a.com

623/627

E-1071-623

= 25 °C, U

= DC 48 V)

ambient

DC 48 V

DC 28...60 V

(see Technical description)

adjustable between 0.1...3.1 A and/or

10...310 mA via switch and potentiometer

on the front side

typically 16 mA

max. 5 % (3 phase bridge)

(terminals 1 and 2), integral

fuse

2.5 KV between load circuit, control circuit

and status signal circuit

NPN transistor, minus switching,

pulse-controlled (approx. 180 Hz)

DC 24 V/adjustable between 0.1...3.1 A or

DC 24 V/adjustable between10...310 mA

up to 10 % more than pickup current

typically 60 % of the set rated current I

approx. 4.5 A

in the ON and OFF condition (RED LED)

2-pole in the load circuit,

by manual circuit breaker release

or after short circuit disconnection

2 x ø 2 mm (current proportional voltage:

1 V = 1 A )

integral electronic control with quick

disconnection

optocoupler in control input

»0« = DC 0...5 V

»1« = DC 8.5...35 V

typically 5...10 mA

1 Hz

max

YELLOW LED lights (I

control

reverse polarity protection (diode)

ON indication/function indication

- physically isolated by optocoupler

- transistor outputs, plus switching

- auxiliary voltage U

: DC 12...60 V

- max. 50 mA per output

- integral free-wheeling diode

- reverse polarity and overvoltage

protection

= »0« : output non-conductive

< 70 ms switch-off signal delay

= »1« : output connecting plus potential

(term. 10) to term. 8 only as long

as load current flows, not with

wire break or short circuit

< 15 ms switch-off signal delay

fault: output non-conductive

no fault: output connecting plus potential

(terminal 10) to terminal 9

flowing)

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