
6
312
%
Germany (0 91 87) 10-0 - USA (847) 827-7600 - UK (01296) 420336 - www.etacbe.com
Issue C
Switch-on current I
E
To reach the max. inrush current the output transistor connects the
operating voltage to the inductive load for approx. 400 ms. After this
period the load current is set back to hold current (= minimum
current).
Operating voltage U
B
The max. admissible operating voltage of the SSRPC is approx. DC 60 V.
The min. operating voltage is a function of the overall ohmic resistance
in the load circuit. The switch-on current is reduced by
- the voltage drop on the load cable
- the load resistance increasing with the operating temperature of
the load.
The function as shown below is no longer ensured when the minimum
operating voltage (DC 28 V) is under limits. The output will then be
continuously conductive, and the set minimum current may no longer
be reached.
Operating status
Fault-free Short-circuit Wire break
operation on the load
U
B
too low/
incorrect setting
control input
YELLOW LED -
control current
GREEN LED -
minimum current
RED LED -
wire break
Auxiliary contact
Remark
“0”
1
“1”
1
“1”
0
“0”
1
“1”
1
“1”
1
0
1
0
0
0
0
0
0
0
1
1
0
open open closed
load load
OFF ON
open open open
no load
physical
isolation after connected
approx. 5 s
current cannot
be adjusted
wire break
Technical description
Setting of hold current I
(= minimum current)
The hold current of the load is set between 25 % and 75 % I
by
the 270
°
potentiometer on the front. This hold current should be
measured by means of a voltmeter connected to the 2 mm current
measuring terminals (0.1
shunt).
Technical description (cont’d)
G
Operating voltage (terminals 1 and 2):
reverse polarity protected by means of a relay.
The relay will only pick up and apply voltage to the device if the
operating voltage is correctly polarised. This relay will then remain
permanently energized, without being influenced by the control input.
G
Control circuit (terminals 6 and 7):
reverse polarity protected by means of a diode.
G
The load output (terminals 3-4) or the inductive load must not be
fitted with a free-wheeling diode as the free-wheeling current is
controlled electronically. This control also causes a very short fall
time of the inductive load.
The solenoid connector may be fitted with a visual indication means
(LED).
Operating modes
1 - LED lights
0 = LED does not light
Solid State Remote Power Controller E-1071-803
1A/15…30W
B
>36V
Stromhalb-
leiterrelais
1071 - 803
24 V
+
6
7
8
9
10
1
2
3
4
5
Wire break
25
Shunt
0.1
-
35
45
55
65
75
I
Soll
(%)
I
St
I
Soll
approx. 400 ms
time t
I
H
I
N
I
E
current
ON
I
E
= inrush current
I
N
= rated current
I
H
= hold current
OFF
quick release