ETAL E-1071-627-DC24V-3.1A Designed for inductive loads (dc 24 v) Datasheet

Solid State Remote Power Controller E-1071-623/627
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
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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: IN = 0.1...3.1 A)
l Significant reduction of power loss in the load by pulse-controlled
characteristics
l Double pole switching output, short-circuit proof (short-circuit
limitation); physical disconnection from supply
l Inrush current and holding current monitoring
l 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
l Reverse polarity and overvoltage protection in the control, load
and status circuits
l Control current indication by YELLOW LED
l O.K. indication by GREEN LED
l Wire break indication by RED LED (load circuit)
l Fault indication by RED LED
(short circuit, over/undervoltage, setting error)
l Two status outputs for PLCs for evaluation
(status indication, ON indication)
l Quick disconnection (do not connect a free-wheeling diode to the
load as the free-wheeling current is controlled electronically)
Break time < make time
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E-1071-623
Technical data (Tambient = 25 °C, UB = DC 48 V)
Rated voltage
Operating voltage UB
DC 48 V
DC 28...60 V
(see Technical description)
Current rating IN adjustable between 0.1...3.1 A via switch
and potentiometer on the front side
Current consumption I0
(US = »0«)
typically 16 mA
Residual ripple for
all voltages
max. 5 % (3 phase bridge)
Reverse polarity protection UB (terminals 1 and 2), integral
Fail Save
fuse
Insulation voltage
2.5 KV between load circuit, control circuit
and status signal circuit
Load circuit
Load output
NPN transistor, minus switching,
pulse-controlled (approx. 180 Hz)
Load rating
DC 24 V/adjustable between 0.1...3.1 A
Switch-on current IE
up to 10 % more than pickup current
Holding current IH
typically 60 % of the set rated current IN
Short circuit
approx. 4.5 A
disconnection current
Wire break monitoring
in the ON and OFF condition (RED LED)
Physical isolation
2-pole in the load circuit,
by manual circuit breaker release
or after short circuit disconnection
Current measuring plugs
2 x ø 2 mm (current proportional voltage:
1V=1A)
Free-wheeling circuitry
integral electronic control with quick
^
(see Technical description)
disconnection
Control circuit
Control
optocoupler in control input
Control voltage US
»0« = DC 0…5 V
»1« = DC 8.5…35 V
Control current IS
typically 5...10 mA
Switching frequency fmax
1 Hz
Control signal (US = »1«)
YELLOW LED lights (Icontrol flowing)
Protection
reverse polarity protection (diode)
Status outputs
2 signal outputs
ON indication/function indication
- physically isolated by optocoupler
- transistor outputs, plus switching
- auxiliary voltage UA: DC 12...60 V
- max. 50 mA per output
- integral free-wheeling diode
- reverse polarity and overvoltage
protection
ON indication
US = »0« : output non-conductive
(terminal 8)
< 70 ms switch-off signal delay
US = »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
Function indication
fault: output non-conductive (terminal 9)
no fault: output connecting plus potential
(terminal 10) to terminal 9
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Solid State Remote Power Controller E-1071-623/627
Technical data (Tambient = 25 °C, UB = DC 48 V)
Technical description
General data
Ambient temperature
Terminals
0…+60 °C (without condensation)
1071-623: screw terminals
1071-627: screw-less spring-loaded
terminals
Connection: max. 2 x 2.5 mm2 solid
max. 2 x 1.5 mm2 flex with
sleeve
Housing
clamping plate: polycarbonate GV, blue
cover: polycarbonate, black
Mounting
track-mountable to EN 50022-35
Self-extinguishing properties to UL 94: V = 0; VDE 0304: grade 1
Degree of protection
housing, terminals IP20 DIN 40050
Mounting dimensions
45 x 74 x 128 mm
Mass
approx. 170 g
Rated current IN, hold current IH
The current rating of the applicable load at its rated voltage should
be set between 0.1...3.1 A. The holding current of the load is internally
adjusted to 60 % of the set current rating. This holding current can
be measured by means of a voltmeter connected to the 2 mm current
measuring plugs (current-proportional voltage: 1 V ^
= 1 A).
Setting the current rating
The current rating is set by means of a rotary switch (switch
setting 0 A - 1 A - 2 A) and a 270° potentiometer (setting range
between 0.1...1.1 A). The sum of the two settings should equal the
current rating of the load.
Example: 24 V load with IN = 1.5 A
Setting: switch 1 A + potentiometer 0.5 A
Technical description
1
Operating voltage UB
The max. operating voltage of the SSRPC is approx. DC 60 V. The
min. operating voltage required for 24 V solenoids depends on 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.
2
Cable length
Cable size UB min
1A
2x50 m/2x100 m/2x200 m/2x300 m
1.5 mm2
2.5 mm2
33/35/37/40 V
32/33/35/37 V
2A
2x50 m/2x100 m/2x200 m/2x300 m
1.5 mm2
2.5 mm2
35/38/44/49 V
34/35/39/42 V
2x50 m/2x100 m/2x200 m/2x300 m
1.5 mm2
2.5 mm2
37/41/50/58 V
35/38/42/48 V
3A
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Resistance increase in the load circuit:
1.5 mm2 cable
approx. 2.8 Ω/100 m distance
2.5 mm2 cable
approx. 1.6 Ω/100 m distance
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1
2
0
GERMANY
E-1071- 623
+
DC 24 V-Last
0,1-3,1 A
0,4
0,6
1,0
0,1
7
IN /A
0,8
0,2
ILast
= 0,6 x IN
6
The load capacity is no longer ensured when the minimum operating
voltage falls below UB min = 28 V. The RED LED (fault) will indicate
and the output will be switched off. Only when an operating voltage
of 29.4 V is exceeded will the load be switched on again and normal
operation status is restored.
4
Steuerstrom
O.K.
Fehler
Drahtbruch
Minimum operating voltage UB min
IN
3
8
1,1
+
1V ^
=1A
9
10
Faulty setting of current rating
The red LED (failure indication) blinks in the event of a faulty setting.
The load is disconnected only after approx. 15 sec if the current rating
value is not corrected and the red LED will be permanently lighted.
Reset is only possible by switching on again.
The tolerance range, in which faulty setting will not be indicated, is
approx. ± 30 % of the holding current.
Ordering information
Type No.
E-1071
Maximum operating voltage UB max
The load capacity is no longer ensured when the max. operating
voltage UB max = 60 V is exceeded. The RED LED (fault) will indicate
and the output will be switched off. Only when the operating voltage
falls below 57 V will the load be switched on again and normal operation status is restored.
SSRPC
Terminals
623
screw terminals
627
screw-less connectors
Voltage rating of load
DC 24 V
Current rating
0.1 A...3.1 A
E-1071
-
623 - DC 24 V - 0.1 A...3.1 A ordering example
Switch-on current IE = pickup current
The output transistor connects the operating voltage to the inductive
load until actual switch-on of the solenoid (pickup current). After this
period the load current is set back to holding current IH.
IN = Current rating
IE = Switch-on current/
pickup current
IH = Holding current
Current
IN
IE
IH
ca. 10...100 ms
ON
2
quick disconnection
OFF
time t
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1646
Solid State Remote Power Controller E-1071-623/627
Operating modes
UB too low/
high (2)
faulty
setting
control input
(terminals 6 and 7)
LED YELLOW – control c.
»0«
»1«
»0«
»1«
»0«
»1«
»0«
»1«
0
1
0
1
0
1
0
1
1
1
0
0
0
0
0
0
LED GREEN - O.K.
0
0
1
1
0
0
0
0
0
0
0
0
1
1
1
1
LED RED - wire break
LED RED - fault
status function
(terminal 9)
status operation
(terminal 8)
physical isolation
1
1
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
1
0
0
current rating
presetting
physical
isolation
off
0
1
2
max. 60 V DC/ 0.1A
+U a
10
status
S
function F
9
status S
operation B
8
-U a
max. 35 V DC
control
input
+U S
-U S
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6
7
Notes:
Short circuit: load (+) to load (-)
2 Underoltage: device disconnects at 28 V and reconnects at 29.4 V
Overvoltage: device disconnects at 60 V and reconnects at 57 V
1
1
+UB
(28...60 V DC)
+
3
control and
monitoring
electronics
4
fault
load short
circuit (1)
O. K.
wire break
wire break
fault-free
control input
mode
Schematic diagram
2
gb gn rt rt
+
LED-indication
current-proportional
voltage output U(I)
+
solenoid
load
-
-UB
-
1 - LED status output carries to plus potential
0 - LED status output is non-conductive
Dimensions
129 OFF condition
5.08
124 ON condition
4.88
121
4.76
119.5
4.70
45
1.77
73.2
2.88
5
rail EN 50022-35x7.5
(not included in delivery)
This is a metric design and millimeter dimensions take precedence ( mm )
inch
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Solid State Remote Power Controller E-1071-623/627
Terminal selection
E-1071-623 (0.1 - 3.1 A)
E-1071-623 (10 - E-1071-627
310 mA)
(0.1 - 3.1 A)
E-10
Terminal
1
2
Operating voltage +UB: max. DC 60 V
E-1071-627 (0.1 - 3.1 A)
Operating voltage (-)
6
Control voltage +US: max. 35 V
E-1071-627 (10 - 310 mA)
7
Control voltage -US
3
Load (+)
8
Status output “operation” (max. 50 mA)
4
Load (-)
9
Status output “function” (max. 50 mA)
5
Auxiliary voltage -UA for status outputs
10
Auxiliary voltage +UA for status outputs: max. DC 60 V/100 mA)
5
4
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Solid State Remote Power Controller E-1071-623/627
Application note:
Controlling and monitoring of solenoid valves in combination with LED valve plugs
Possible configuration of E-1071-62x
Please note:
In the event of using a plug or suppressor element not
recommended, the wire break monitoring function might be
limited in the not activated condition.
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with screw terminals:
with screwless terminals:
E-1071-623-DC 24 V-0.1...3.1 A
E-1071-627-DC 24 V-0.1...3.1 A
Often DC 24 V solenoids with a low power rating are used which are
to be controlled and monitored by the above mentioned devices.
Sometimes these solenoids are fitted with solenoid valve plugs, e.g.
made by Hirschmann, and hold a small electronic pcb
- with LED,
- a series resistor
- a protective diode connected in anti-parallel to the LED
The following components can be recommended:
Recommended valve plugs with LED, Hirschmann
- type GDML 2011 LED 24 YE, contains the pcb
type GDME-LED 24 YE
- type GDML 2011 LED 24 RD, contains the pcb
type GDME-LED 24 RD
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status indication (LED) with a protective diode connected in
anti-parallel
(+)
∼
(+) 1
∼
(-)
∼
(-) 2
∼
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Recommended adapter with LED, Murr Elektronik
- suppressor element model B – 10 mm LED,
24 V DC/50 VA/W, part no.: 3124875
- suppressor element model BI – 11 mm LED,
24 V AC/DC/50 VA/W, part no.: 3124215
- suppressor element model C – 8 mm LED,
24 V AC/DC/50 VA/W, part no.: 312811
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All dimensions without tolerances are for reference only. In the interest of improved design,
performance and cost effectiveness the right to make changes in these specifications without notice is reserved.Product markings may not be exactly as the ordering codes. Errors
and omissions excepted.
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