E-1072-100 Datasheet, PDF (1/4 Pages) ETAL Group – 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).

Solid State Remote Power Controller 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
E-1072-100
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.
Technical data (T_ambient = 25 °C, U_S = DC 24 V)
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
Voltage rating U_N
DC 24 V
Operating voltage U_S
DC 19.2...36 V
Current rating I_N
max. 3 A
Current consumption I₀ typically 24 mA
(U_Contr = “0”)
Power loss P_max (I_N=3 A) typically 3.5 W
Residual ripple for all voltages max. 5 % (3 phase bridge)
l PLC controllable electronic switching amplifier (max. 3 A) with
additional protective and control functions for DC 24 V loads (e.g.
Reverse polarity protection U_S integral -> fault release, LEDs not lighting

Caution: Ensure free travel of actuator

button.
solenoids, magnetic brakes, electromagnetic clutches, monitoring _{Insulation voltage}
AC 500 V (control circuit, load circuit,
and indicator lamps).

fault indication “Err1” and “Err2”)
l Overload and short-circuit proof double pole switching output with
in-rush current and short-circuit limitation.
Load Circuit
l Electronic disconnection upon
Load output
two pole switching output (minus and plus
- an overload in the load circuit,
(term. 31-term. 32)
switching), MOS transistors
- short-circuit in the load (load+/load-, load+/-U_S, and
load-/+U_S), followed by 2-pole isolation of 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
Max. load data

Min. load data

Voltage drop at I_N
Switch times (t_on / t_off)
Overload disconnection
Trip time (I_load= 2 x I_N)
Short-circuit current I_K
Trip time (upon I_K)

DC 24 V/3 A (no derating over the
entire temperature range!)
DC 24 V / 50 mA (wire break
threshold 30 mA)
typically 0.9 V (R_i typically 300 mΩ)
typically 2 ms (resistive load)
approx 1.15 x I_N (typically 3.45 A)
typically 400 ms
typically 12 A current limitation
typically 50 ms, 2-pole isolation of load
circuit after approx. 200 ms
5
- overload or short circuit in the load circuit

–> RED LED indicates, fault indication F
l “Err2” fault signalisation:

“Err1” and “Err2”
- only overload or short circuit in the load circuit
Wire break monitoring
with the load switched on or off; RED LED
- reset required

“Error” lighted, group fault signalisation
l Integral protection against reverse polarity and overvoltage for the
“Err1”
control and load circuit.

(U_Contr= “0”) wire break threshold R_load > 10 kΩ

(U_Contr= “1”) minimum current I_load < 30 mA
Supervision of load circuit with the load switched on, the load
Ordering information

current is monitored via the two

switching outputs GREEN LED indicates
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

(OK signal), I_load > 30 mA
Leakage current (U_Contr = “0”) typically 1 mA
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
Current rating
with term. 34: -shunt)
the device.
3 A

Measurement by voltmeter terminal 33 -

terminal 34 (100 mV = 1 A)
E-1072 - 100 - DC 24 V - 3 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”)
1646
www.e-t-a.de
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