ETAL ESX10-S115-DC24V-4A Selective load protection, electronic trip curve Datasheet

Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A
Description
The model ESX10-Sxxx extends our product group of electronic
overcurrent protection devices for DC 24 V applications.
At a width of only 12.5mm it provides selective protection for all DC
24 V load circuits. This is achieved by a combination of active electronic current limitation in the event of a short circuit and overload
disconnection typically from 1.2 times rated current. The ESX10-S is
a plug-in type and thus allows quick and easy installation for groups
of devices with several circuits on the power distribution systems
Module 17plus and SVSxx.
DC 24 V switch-mode power supplies are widely used in automation
today. In the event of an overload, however, they turn down the output
voltage which is intended to power all connected loads. So if there is
a failure in a single load of the system, the supply voltage will break
down also in all other load circuits. Not only does this frequently cause
undefined fault conditions, but it can even lead to machine stoppages
or system downtimes.
This is exactly where the ESX10-S comes in by responding to the
overload conditions faster than the switch-mode power supply. The
max. possible overcurrent is limited to typically 1.4 times rated current
(see table 1). This allows switching on capacitive loads of up to 20,000
µF, but a disconnection will only be effected in the event of an overload or short circuit. For adjustment to the load conditions the current
rating can be selected by means of a rotary switch from 1A to 10A.
Status and failure indication is by means of a multi-coloured LED, an
integral short circuit proof status output (single or group alarms) or via
a potential-free relay contact (change-over contact). Remote actuation is possible via a remote reset signal. The manual ON/OFF switch
on the device itself allows start-up of certain individual load circuits.
As soon as the ESX10-S detects overload or short circuit in its load
circuit, it blocks the load output transistor and disconnects the current
flow in the faulty circuit. After remedy of the failure, the load output of
the ESX10-S is re-activated by an electronic reset signal or manually
by actuating the ON/OFF switch on the device.
US patent number: US 6,490,141 B2
Features and Benefits
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Selective load protection, electronic trip curve
All types of loads can be connected (DC 24 V motors upon
request)
Active current limitation when switching on capacitive loads
up to min. 20,000 µF and in case of overload/short circuit
Whole-number adjustable current ratings from 1A to 10 A
by means of rotary switch
Reliable overload disconnection typically from 1.2 x IN even with
long load lines or small cable cross sections
Manuel ON/OFF switch (S1)
Clear status indication by means of LED, electronic status output
SF or signal output F (potential-free auxiliary contact)
Electronic reset input RE, control input IN
Integral fail-safe-element
Width per channel only 12.5 mm
Plug-in type mounting on power distribution system Module
17plus and SVSxx.
Approvals
Authority
Standard
Rated voltage
Current ratings
UL
UL 2367
DC 24 V
1...10 A
UL
UL 508
C22.2 No 14
DC 24 V
1...10 A
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ESX10-S
Technical data (Tamb = 25 °C, UB = DC 24 V)
Operating data
Operating voltage UB
DC 24 V (18...32 V)
Current ratings IN
adjustable ratings:
1 A through 10 A in 1 A steps
Standby current I0
in ON condition:
typically 25 mA with version -103/-115/-125
typically 20 mA with version -114/-117/124/-127
Visual status
multicoloured LED:
indication
green:
- load circuit connected
flashing (green/yellow):
- load current warning limit reached 80%
yellow:
- overload or short circuit until
disconnection
red:
- after disconnection due to overload,
short circuit or temperature
- after undervoltage disconnection in ON
condition of operating voltage with automatic reset
flashing (red/OFF):
- upon changed rating adjustment
OFF:
- devices switched off via
ON/OFF switch
- no operating voltage with ON/OFF
switch in ON condition
Load circuit
Load output
power MOSFET switching output
(plus switching)
Load current
typically 0.8 x IN
warning limit (ILimit)
hysteresis
typically 5%
Overload disconnection typically 1.2 x IN (1.05...1.35 x IN)
(IOL)
(see time/current characteristic)
Short circuit current (ISC)active current limitation with ISC =
typically 2.5 x IN , 1 A
typically 1.4 x IN, 2 A -10 A
(see time/current characteristic)
Trip times
at overload disconnection (IOL) = typ. 3 s
at short circuit current (ISC) = typically 0.1 s
(see time/current characteristic)
Temperature
internal temperature monitoring with
monitoring electronic disconnection
disconnection
typically +100 °C
hysteresis
typically 10 °C
Operating voltage
OFF at typically UB < 16.0 V
monitoring with regard
ON at typically UB> 17.5 V
to low voltagewith automatic ON and OFF switching
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Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A
Technical data (Tamb = 25 °C, UB = DC 24 V)
4
Technical data (Tamb = 25 °C, UB = DC 24 V)
Switch-on delay tStart
typically 0.1 s
- after each ON operation, reset and after
applying of UB
- during switch-on delay the load circuit is
disconnected.
Disconnection of
- manually on the device with the
load circuit ON/OFF switch (OFF)
- after disconnection due to overload
or short circuit
- temporarily at undervoltage
- at excess temperature of the device
- upon changed rating adjustment
- at no operating voltage
Leakage current in load typically < 1 mA
circuit in the OFF condition
Capacitive loads
min. 20,000 µF
Free-wheeling diodeexternal free-wheeling diode
recommended for inductive load
Parallel connection of
several load outputs
not allowed
Status output SF
ESX10-S114 / -S124
Electrical dataplus switching signal output,
connects UB to terminal SF
Rated data: DC 24 V / max. 0.2 A (short
circuit proof) The status output is connected
internally with a 10 kOhm resistor against 0 V
Status OUT (-S114/-S124)ESX10-S114/-S124 (Signal Status OUT),
at UB = + 24 V
Normal condition:
+ 24 V S1 is ON, load output connected
Fault condition:
0 V S1 is ON, load output blocked
or in the event of manual disconnection (S1 is OFF) red LED
lighted
0 V no operating voltage UB
Status output SF
ESX10-S117/-S127
Electrical dataplus switching signal output,
connects UB to terminal SF
Rated data: DC 24 V / max. 0.2 A
(short circuit proof)
The status output is locked internally
with a 10 kOhm resistor
against 0 V.
Status OUT (-S117/-S127)ESX10-S117/-S127 (Signal Status OUT
inverted), at UB = + 24 V
Standard condition: 0 V ON/OFF switch is ON, load
output connected through
Fault condition:+ 24 VON/OFF switch is ON, load
output locked
or
with manual disconnection
ON/OFF switch is OFF
0 V no operating voltage UB
Control input IN+
ESX10-S114 / -S115 / -S117
Electrical data
voltage max. DC 32 V
High> DC 8 V < DC 32 V
Low < DC 3 V > 0 V
Current consumption typically 2.6 mA
(DC 24 V)
Control input IN++24 V level (HIGH): device is switched on
by a remote ON/OFF signal.
0 V level (LOW) device is switched off by
a remote ON/OFF signal.
Switch S1 ON/OFFdevice can only be switched on when a
HIGH level is applied to IN+
Reset function
a blocked load output (blocked by overload/
short circuit) can externally be reset by the
control input For this purpose the control
input has be switched off for at least 100 ms
and switched on again afterwards.
2
Reset input RE
ESX10-124/-125/-S127
Electrical data
voltage max. + DC 32 V
high > DC 8 V ≤ DC 32 V
low ≤ DC 3 V > 0 V
current consumption
typically 2.6 mA (+ DC 24 V)
RESET – pulse / edge from low >
100 ms on high > 100 ms
Reset signal REBy means of the reset signal the
­electronically locked ESX10-S124/S125/-S127 can be remotely reset via
an external momentary switch or via
the PLC. A joint reset signal can also
be applied to more than one device at a
time. Devices in ON condition will remain
unaffected.
Signal output F
ESX10-S103
Electrical datapotential-free auxiliary change-over
contact max. DC 30 V / 0.5 A min.
10 V / 10 mA
Standard condition:SC/SO (13/14) closed
SC-SI (13/12) open
load output connected through
Fault condition:SC/SO (13/14) open
SC-SI (13/12) closed
load output locked
Signal output F
ESX10-S115 / -S125
Electrical datapotential-free auxiliary make contact
max. DC 30 V / 0.5 A min. 10 V / 10 mA
Normal condition:
SC/SO (13/14) closed
load output connected
Fault condition:
SC/SO (13/14) open
load output locked
General Characteristics
Fail-safe-elementintegral fail-safe-element 15 A
Max. rupture capacity of the element is
300 A at 24 V DC
TerminalsLINE+ / LOAD+ / 0V / (RE / IN+ / SF) or
(SC / SO / SI)
Blade terminals
6.3 mm to EN60934-6.3-0.8
Housing material
moulded
Mounting methodplug-in type onto Module 17plus
and SVSxx
Ambient temperature0...+50 °C (without condensation,
cf. EN 60204-1)
Storage temperature
-40...+70 °C
Humidity96 hrs / 95% RH 40°C to
IEC 60068-2-78-Cab
climate class 3K3 to EN 60721
Vibration
3g test to IEC 60068-2-6, test Fc ,
Degree of protection
IEC 60529, DIN VDE 0470)
operating area
IP30
terminal area
IP00
EMC requirements
emission:
EN 61000-6-3
(EMC directive, CE logo) susceptibility:
EN 61000-6-2
Insulation co-ordination 0.5 kV / pollution degree 2
(IEC 60934)
reinforced insulation in operating area
Dielectric strength
max. DC 30 V (load circuit)
Insulation resistance
n/a, only electronic disconnection
(OFF condition)
Approvals
CE logo
UL 2367, File # E306740,
Solid State Overcurrent Protectors
UL 508, File # E322549
Dimensions (w x h x d)12.5 x 70 x 60 mm (tolerances to
DIN ISO 286 part 1 IT13)
Mass
approx. 40 g
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Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A
Table 1: typical voltage drop, current limitation, max. load current
Current rating
IN
Typical voltage drop UON at IN
TAMB = 50 °C
15 mV
2,5 x IN
1A
1A
2A
30 mV
1,4 x IN
2A
2A
3A
45 mV
1,4 x IN
3A
3A
4A
60 mV
1.4 x IN
4A
4A
5A
75 mV
1.4 x IN
5A
5A
6A
90 mV
1,4 x IN
6A
5A
7A
105 mV
1,4 x IN
7A
6A
8A
120 mV
1,4 x IN
8A
7A
9A
135 mV
1,4 x IN
9A
8A
10 A
150 mV
1,4 x IN
10 A
9A
When mounted side-by-side without convection, the devices should carry max
80% of their rated load continuously (100 % ON duty).
Time/current characteristic curve (Tamb = 25 °C, UB = DC 24 V)
Schematic diagram ESX10-S127 (example)
10000
LINE (+)
DC 24 V current
1000
Failsafe
10
5
1
Short circuit current limitation
typ. 2.5 x IN with IN 1 A
typ. 1.4 x IN with IN 2 A to 10 A
0,1
0,01
2
3
5 IK
Rsense
1
0
4
... times rated current
Without the current limitation there would be a much higher
overcurrent in the event of an overload or short circuit.
LOAD (+)
load output
electronic control unit
rating
adjustment
overload
disconnection
typically 1.2 x IN
100
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TAMB = 40 °C
1A
Note:
Trip time in sec
Max. load current at 100 % ON duty
active current limitation
ILimit typically
S1
ON/OFF
4
operating condition
RE
reset input
RE
reset input
SF
status output
GND (-)
Order numbering code
Type No.
ESX10 Electronic Circuit Protector, with current limitation
Mounting
Splug-in, with rotary switch for 10-step current rating adjustment
from 1 A to 10 A
Version
1 without physical isolation
Signal input
0 without signal input (only version -S103)
1 control input IN (only version -S114/-S115/-S117)
2 with reset input RE (only version -S124/-125/-127)
Signal output:
3 signal change-over contact (only version -S103)
4 status output SF (only version -S114/-124)
5 signal contact (only version -S115/-125)
7 status output SF, inverted (only version -S/117/-S127)
Operating voltage
DC 24 V voltage rating DC 24 V
Current ratings
1 A - 10 A adjustable
ESX10 - S
1
Please note
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The user has to ensure that the cable cross section of the load
circuit in question complies with the current rating of the ESX10-S
used.
In addition special precautions must be taken in the system or
machine (e.g. use of a safety PLC) which reliably prevent an
automatic re-start of parts of the system (cf. Machinery Directive
2006/42/EG and EN 60204-1, Safety of Machinery). In the
event of a failure (short circuit/overload) the load circuit will be
­disconnected electronically by the ESX10-S.
0 3 - DC 24 V - 1 A-10 A ordering example
Standard types:
ESX10-S103-DC24V-1A...10A
ESX10-S127-DC24V-1A...10A
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Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A
Wiring diagrams
The auxiliary contacts are shown in the OFF or fault condition
2 LOAD+
Status OUT
12 SF
14 IN+
2 LOAD+
Status OUT
12 SF
Control IN
14 IN+
13 IN+
11 GND
1 LINE+
^
2 LOAD+
Reset IN
12 RE
14 SO
Signal
13 SC
1 LINE+
11 GND
^
2 LOAD+
12 SF
14 RE
Failsafe
ESX10-S125
with reset input RE
with signal output F (group signal, N/O)
Status OUT
Reset IN
13 RE
^
Standard condition: SF 0V = OK
Fault condition:
SF +24V
ESX10-S124
with reset input RE
with status indication SF
11 GND
11 GND
Failsafe
^
2 LOAD+
12 IN+
Control IN
14 SO
13 SC
11 GND
Signal
Failsafe
1 LINE+
ESX10-S117
with signal input IN+
with status indication SF inverted
Standard condition: SC/SO closed
Fault condition:
SC/SO open
Failsafe
^
Standard condition: SF+24V = OK
Fault condition:
SF 0V
ESX10-S115
with signal input IN+
with signal output F (group signal, N/O)
1 LINE+
13 IN+
Failsafe
1 LINE+
2 LOAD+
Signal
Standard condition: SC/SO closed, SC-SI open
Fault condition:
SC/SO open, SC-SI closed
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Control IN
ESX10-S114
with signal input IN+
with status indication SF
^
12 SI
14 SO
13 SC
11 GND
1 LINE+
Failsafe
ESX10-S103
without signal input
with signal output F (group signal, change-over)
Standard condition: SC/SO closed
Fault condition:
SC/SO open
Standard condition: SF +24V = OK
Fault condition:
SF 0V
^
2 LOAD+
12 SF
Status OUT
14 RE
13 RE
11 GND
1 LINE+
Failsafe
Reset IN
ESX10-S127
with reset input RE
with status indication SF inverted
Standard condition: SF 0 V = OK
Fault condition:
SF +24 V
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Electronic circuit protector ESX10-Sxxx-DC24V-1A-10A
Dimensions ESX10-S
Accessories
60
Module 17plus
For technical data see section Power Distribution Systems
operating area
slot for fitting labels from
Phoenix, Weidmüller, Wieland
Electronic Overcurrent Protector
ESX10-S1xx-DC24V-1A-10A
70
2.75
Made in Germany
XXXX
Failsafe
57
2.24
LOAD (+)
SI
RE
Gnd
LINE (+)
47
1.85
42.5
1.67
17 plus
installation area
63
2.48
10,3
on / off
Control unit
RE
70
I>
ok
115
4.53
G-profile
EN 50035-G32
symmetrical rail
EN 50022-35x7.5
6
.236
25
.984
25
.984
max. 38
max. 1.50
12
2
12
14
11
reverse plug-in protection
right-side terminal block
2
1 Line 1 Line
blade terminals
EN 60934-6,3-0,8
6x6,8 = 40,8
14
11
slot for busbar
6,8
left-side terminal block
off
r
e
s
e
t
on
A
ESX10
-S1xxDC24V
12,3
module
4
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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