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Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Issue C
Voltage rating U
Operating voltage U
B
Current rating I
Current consumption
(U
= DC 24 V, U
= “0”)
Residual ripple for all voltages max. 5 % (3 phase bridge)
Reverse polarity protection U
B
double pole relay
(terminal 1 - terminal 2)
Physical isolation
DC 24 V
DC 20...48 V
3 A
typically 15 mA
2-pole
- by manual release (circuit breaker)
- approx. 5 s after overload
disconnection
Load circuit
Load output
Load rating
Voltage drop at I
Overload disconnection
Storage time ts (at 2xI
N
)
Short-circuit limitation
Short-circuit response delay
Load current monitoring I
(MIN monitoring, to be set by
potentiometer at 50 % of the
load current rating)
Current measuring terminals
Leakage current (U
S
= “O”)
Free-wheeling diode
Control circuit
Control
Control voltage U
S
NPN transistor, minus switching
DC 24 V/0.2...3 A
max. 2 V
approx. 1.1 x I
typically 20 ms (see storage time curve)
approx. 2.5 x I
N
approx. 4
μ
s
GREEN LED lights at I
> 0.2 I
min
.
switch position I: 0.1...1.1 A
switch position II: 1.1 ...2.1 A
2 x 2 mm dia. (shunt 0.1
±
1 %)
max. 3 mA
integral
opto coupler in control input
“0” = 0 ... 5 V
“1” = 8.5...35 V
typically 5 mA
10 Hz
YELLOW LED lights (I
flowing)
reverse polarity protection (diode)
Control current
Switching frequency f
Control signal (U
S
= “1”)
Protection
Status outputs
2 signal outputs
ON indication/fault indication
- physically isolated by opto coupler
- transistor outputs plus switching
- max. DC 33 V/100 mA per output
- integral free-wheeling diode
- 20 ms time delay (eliminating false
signals before the minimum current
is reached)
U
S
= “0”: output non-conductive
U
S
= “1”: output connecting plus
potential (terminal 10) to
terminal 8
fault:
output non-conductive
no fault: output connecting plus
potential (terminal 10) to
terminal 9
ON indication (terminal 8)
Fault indication (terminal 9)
Technical data
(T
A
= 25
°
C, U
B
= DC 24 V)
Description
Typical applications
Control of hydraulic and pneumatic sytems in production lines and
chemical plants where check-back signals for process control systems
are needed.
Features
E-1071-128
The E-T-A Solid State Remote Power Controller E-1071-128 is an
electronic ON/OFF control module with protective and signalling
functions. It is suitable for inductive loads (solenoids, magnetic brakes)
when the load circuit supply cannot be increased to the voltage level
required for the adjustable controller E-1071-603. The operating status
of the controller/load connected is continuously indicated and signalled
via opto coupler.
G
Overcurrent and short-circuit proof switching output by
electronic current limitation
G
Switch-off current largely independent of operating voltage
G
Inrush current limitation
G
Physical isolation between control and load circuit via
opto coupler
G
Low control power; control current indication by LED
G
Solid state switching avoids contact arcing and welding
G
2-pole physical isolation upon overload or when tripped manually
G
Opto decoupled ON and fault indication by LED
G
Setting of minimum current on front of housing, with minimum
current indication (set at approx. 50 % of the load current rating)
G
Current measuring terminals on front of housing
G
Reverse polarity protection in control and load circuit
Ordering information
Solid State Remote Power Controller E-1071-128
Type No.
E-1071
SSRPC
128
Voltage rating of load
DC 24 V
Current rating
3.0 A
E-1071 - 128 - DC 24 V - 3.0 A ordering example