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Solid State Remote Power Controller E-1072-100

1646

1

5

E-1072-100

Description

The E-T-A Solid State Remote Power Controller E-1072-100 is a

double pole electronic switching amplifier suitable for resistive and

inductive loads (solenoids, magnetic brakes etc.) as well as for lamp

loads and capacitive loads.

The double pole electronic switching output eliminates

inadvertent start-up or dangerous machine movements as may

arise upon a ground fault in systems with ungrounded power

supply (‘IT systems’) (see Machinery Directive EN 60204 part

1, para. 9.4.3.1).

Typical applications

l

Two pole actuator switching for machinery and plants.

l

Monitoring of the electrical functionability of these loads.

l

In-rush current limitation of lamp and capacitive loads.

l

Protection of load circuit cables.

l

ON and fault indication (by LEDs or RED trip button) and

signalling (via potential-free auxiliary contacts).

l

Two pole physical isolation upon overload or when tripped

manually.

Features

l

PLC controllable electronic switching amplifier (max. 3 A) with

additional protective and control functions for DC 24 V loads (e.g.

solenoids, magnetic brakes, electromagnetic clutches, monitoring

and indicator lamps).

l

Overload and short-circuit proof double pole switching output with

in-rush current and short-circuit limitation.

l

Electronic disconnection upon

- an overload in the load circuit,

(via relay contacts).

l

Control input “In/Ctrl” with control current indication (YELLOW LED).

l

“O.K.” and availability indication (GREEN LED).

l

Short-circuit and overload indication (fault indication F and RED LED).

l

“Err1” group fault signalisation – all faults will be signalled:

- wire breakage in the load circuit

- earth fault at switching output

- internal faults

- overload or short circuit in the load circuit

l

“Err2” fault signalisation:

- only overload or short circuit in the load circuit

- reset required

l

Integral protection against reverse polarity and overvoltage for the

control and load circuit.

Ordering information

Type No.

E-1072

Solid State Remote Power Controller SSRPC

100

(trips only with overload or short circuit)

Voltage rating of load

DC 24 V

Current rating

3 A

E-1072

- 100 - DC 24 V - 3 A

DC 24 V

DC 19.2...36 V

max. 3 A

typically 24 mA

typically 3.5 W

Residual ripple for all voltages max. 5 % (3 phase bridge)

Caution: Ensure free travel of actuator

button.

Insulation voltage

AC 500 V (control circuit, load circuit,

fault indication “Err1” and “Err2”)

Load Circuit

Load output

two pole switching output (minus and plus

(term. 31-term. 32)

switching), MOS transistors

Max. load data

DC 24 V/3 A (no derating over the

entire temperature range!)

Min. load data

DC 24 V / 50 mA (wire break

threshold 30 mA)

typically 2 ms (resistive load)

Overload disconnection

typically 400 ms

typically 12 A current limitation

typically 50 ms, 2-pole isolation of load

circuit after approx. 200 ms

–> RED LED indicates, fault indication F

“Err1” and “Err2”

Wire break monitoring

with the load switched on or off; RED LED

“Error” lighted, group fault signalisation

“Err1”

Supervision of load circuit with the load switched on, the load

current is monitored via the two

switching outputs GREEN LED indicates

Free-wheeling circuitry

integral

Load current measurement no isolation of load circuit required as a

(term. 33: +shunt/

0.1 Ω/± 1 % measuring shunt is integral

with term. 34: -shunt)

the device.

Measurement by voltmeter terminal 33 -

terminal 34 (100 mV = 1 A)

Isolation of load circuit

2-pole by relay contacts

- by manual release of RED button

- approx. 200 ms after electronic tripping

due to overload or short circuit (“OFF”)