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IPS
Magneto-Thermal protection device for electric loads.
Elettronica S.r.l.
via Landa, 80
40050 Monte San Pietro (BO)
Italia
tel +39 51 6762544
Fax +39 51 6764203
[email protected]
www.almaelettronica.it
USER’S MANUAL
The ALMA Elettronica S.r.l.company can modify the device and
this manual without notice
Elettronica S.r.l.
Codice Manuale M0022
Figure index
RESET button
4
Figure 2
Equivalent electric scheme of device’s
functionality
Frontal view
Figure 3
Back view and accessories
7
Figure 4
Dimensions
7
Figure 5
Electrical connections
8
Figure 6
External activation
9
Pushing RESET button you have deleting of the alarm state and restoring of the
operation for all channels. It is equivalent to the rearmament of a thermal protection.
Obviously, if the condition that generated the alarm has not been removed, the
channel will be again in alarm.
Figure 1
MAN/AUT and SEL buttons
The MAN/AUT and SEL buttons are to select a channel and force its activation in
manual mode.
The SEL button is to select a channel. The indication for the selected channel is the
turning on of the related red led. So pushing the button SEL once, the red led related
with the fisrt channel (L1) will turn on, pushing it one more time the turned on red led
will go to right until the L4 channel is selected. Pushing the button one more time no
channel will be selected. No channel will be selected even if no button is pushed
within about 10 seconds.
It is not possible selecting channels if an alarm condition is active, so before using
selection button push the RESET button to deactivate all alarms.
When a channel is selected, pushing the MAN/AUT button it is possible to force it in
the manual or automatic operation. The manual operation selection is indicated by
the turning on of the related green led of the selected channel. When the green led
related to a channel is turned on the channel is forced to manual operation. When the
green led related to a channel is turned off the channel is forced to automatic
operation: it is conditioned to the closure of the external contact.
6
Solution of problems
In this paragraph we give you some suggestions to solve anomalies you can meet
using the IPS device.
Problem
Solution
The IPS device doesn’t
turn on
The device turning on is indicated by the led in the
bottom on the right side of the frontal panel.
Verify the connection of power supply.
Verify there is line voltage.
Verify power supply values are compliance with those
specified in this manual.
If the problem persists please contact the device
distributor.
The device doesn’t turn
on loads without
receiving the external
signal
Verify the effective turning on and off of the input led
in the frontal panel.
Verify connections of each load trying to force them in
the manual operation.
Push the RESET button to delete all the memorized
alarm conditions.
10
3
Inputs
Power supply
The power supply connection is performed connecting the power voltage to
terminals eumerated with 46 and 48. The nominal allowed voltage is 220 Vca to 230
Vca at 50 Hz frequency.
Terminal 47 has to be connected with the ground reference.
The device does not provide internal fuses, so you must provide an external adequate
protection.
The device power supply is protected from momentary over-voltages.
Damages due to a wrong power supply are not covered by guarantee.
Loads supply
The loads supply is realized connecting power supply to terminals enumerated with
30 and 32. Terminal 31 has to be connected to the ground reference.
Maximum current supported is 8 A and maximum tension is 250 Vca.
Loads connection
Loads connection is realized connecting them in couples to terminals 33 to 40, as
indicated in figure 5. Each channel supports a maximum current of 2 A. Anyway,
current will be limited by the value set by the overload protection system (thermal
funcionality).
POWER
INPUT
L4
30
31
32
33
34
L3
35
ALARM
36
L2
37
L1
38
39
POWER
SUPPLY
ENABLE
41
42
43
44
45
Figure 5
46
47
48
40
Alarm relay output connection
Figure 5 shows the position of the relay
at rest (device off).
The alarm relay operates in intrinsic
security, so it is activated at the device
turning on, and it is deactivated when
an alarm condition occurs. In this way
you have a signal of no-controlled
device when it is turned off.
External activation
The terminals 41 and 42 provide
connection to external activation of operation: when you close the contacts on these
terminals the IPS device controls loads activation.
The external contact has to be clean, i.e. without tension.
In those applications where the NEX device controls the transformers temperatures
and the IPS device is used to turn on the ventilation fans, you must connect terminal
13 of the NEX device to terminal 41 of IPS, and terminal 15 of NEX to terminal 42 of
IPS (see figure 7 option 1). In this way each time the temperature of one probe
exceeds the threshold the relay of the NEX will activate and IPS will turn on the
ventilation fans.
If you want the ventilation fans to be turned on even if a probe malfunction or a NEX
malfunction occurs, you must connect paralleling also the contact of the generic
8
!
!
!
1 input for loads supply. Maximum current 8A
1 digital input for extern contact without tension. It is for the external
activation command
2
Input connections with removable terminals for wire of 1,5 mm section and
capacity of 8A/250Vac
Outputs
!
!
!
1 output relay with 5 A and 20 Vca contacts for short circuit or overload alarms
4 outputs for 4 loads supply of maximum 2 A each
2
Output connection with removable terminals for wire of 1,5 mm section
Device dimensions
!
!
!
!
!
Frontal dimensions of 96 mm x 96 mm compliance with DIN 43700
requirements. Maximum depth 150 mm
Assembling on the front of the electric panel
Panel cut-out 92 mm x 92 mm
ABS self-estinguishing container
Frontal panel in anti-scratch poly-carbonate with keyboard and signal leds
Perfomances
!
!
!
!
!
Working temperature 0 °C to +50 °C
Humidity lower than 95% no-condensing
Compliance with ¯ requirements
Device funcionality self-diagnostic
Alarm signal for working anomalies
Displaying and data management
!
!
!
!
!
!
4 green leds to signal working state of load
1 green led to signal the external input state
1 green led to signal device access state
4 red leds to signal alarms for each supply channel
1 reser button to reset alarms. It is equivalent to the rearmament of a thermal
protection.
2 buttons to select channel and to force manual operation.
Cautions
!
!
avoid power supply out of the device nominal range
avoid the device working in room with conditions out of the nominal ones
previously reported and in particular in presence of condensing humidity.
5
Index
Guarantee conditions
Figure index
3
Introduction
4
Device Overview
4
Technical specifications
4
Precauzioni
5
Installation instructions
6
Device and accessories description
6
Frontal panel
6
Back panel and accessories
6
The guarantee consists in the free repair or substitution of the components that have
been damaged in the devices' construction, arrived at our office carriage paid.
The product's guarantee declines in the following cases:
! device's damages deriving from negligence, use or installation not compliance
with the instructions furnished in the user's manual
! wrong power supply
! damages due to changes in the line voltage to which the device is connected as in
the case of discharges caused by thunderbolts or other external phenomena
! tampering with the device
! damages due to accidental causes or to negligence
! non-payment of the device
Mechanical installation
7
Electrical connections
7
Power Supply
8
Loads supply
8
Parts subjected to wear by use are not covered by guarantee.
Loads connections
8
Alarm relay output connection
8
External activation
8
Furthermore, removal and re-installation costs are not covered by guarantee, as
transport costs and risks and any other direct or indirect cost due to repair of the
device you consider damaged.
Instructions for use
9
Led
9
Buttons
9
Reset button
10
MAN/AUT and SEL buttons
10
Solution of problems
10
Guarantee conditions
11
2
The thermal protection IPS devices are covered by guarantee for a period of 24
months since the consignment date for anomalies due to production defects.
The guarantee period is determined on the basis of the serial number written on the
device's label so that it has not to be cancelled nor modified.
The constructor declines any responsibility for harms done to persons, animals or
things directly or indirectly coming out from a proper or improper use of the device.
The device's repair or substitution is subjected to the unobjectionable constructor's
opinion.
When the guarantee period falls the damaged device's repair will involve the debit
entry for the damaged components substitution and for the labour.
For any dispute the competent Court is the one of Bologna (Italy).
11
Introduction
Congratulations for your choice to purchase IPS (Intelligent Power Switch), the
magneto-thermal device for electrical loads.
This manual gives you the informations to install and use the device.
For an useful usage of this manual we suggest you to read it near the IPS device to
directly verify the instructions. We moreover suggest you to keep the manual for
future use.
Device Overview.
The IPS device supports the functionalties of magneto-thermic and of
manual/automatic switch for four distinct electrical loads. It was developed to satisfy
requirements of the insulated resin transformers
users who use fans for convection cooling, but it
can be used in any situation where you have 4
different electrical loads and you need a
extern
magnetothermal control.
contact
The principal functionality of this device are
represented in the scheme in figure 1.
In details the IPS device supports these
M
A
0
functionalities:
! 1 digital input to receive external signals
! Leds to visualize alarms and operation state
of loads
! 3 buttons for settings
! Non volatile memory to save user's settings
! 4 outputs to supply the electrical loads
! 1 relay output for short circuit or overload
alarms.
M
The system has been developed for an easy
manual or automatic arrangement of loads and
for a fast diagnostic in case of anomalies.
The IPS device has been realized compliance
with the electromagnetic compatibility
requirements.
Technical specifications
Power supply
!
!
!
!
4
Nominal line voltage 220 Vac at 40÷50 Hz
Maximum line voltage 250 Vac
Maximum power absorption 5VA
Protection against line noises
A
alarm to terminal
22 and 23 of the
NEX device, as
represented by
option 2 of figure 7
(you must connect
he normally closed,
because it works in
intrinsic security
i.e. On the relay
drop).
opzione 1
NEX
opzione 2
NEX
A1
13
14
41
42
ENABLE
allarme
generico
A1
15
13
14
41
42
15
NEX
Elettronica
22
23
A1
A2
A3
24
IPS
Elettronica
ENABLE
L1
L2
L3
L4
ALL
MAN / AUT
INPUT
RESET
IPS
ON
MAN
AUT
SEL
IPS
Figure 6
Instructions for use
The IPS device provides functionalities of a magneto-thermic for four loads
maximum and can be externally supplied by another control device or by a button for
loads activation.
The device verifies there are no short-circuits, otherwise it turns off all loads and
signals an alarm state. The device measures the current absorption of each load
connected to it and if they exceed the memorized threshold the device turns off the
related channel and signals an alarm.
Using buttons you can force the manual activation (independently from external
activation) for single loads.
Led
L1
L2
L3
Figure 1
L4
Each channel has 2 related leds on frontal panel: one red and one green. For each
channel the red led signals an alarm situation (blinking led) or to indicate the selected
channel (fixed light) for the manual activation; the green led indicates the manual
operation state.
If the device measures an overload situation on a channel, it will turn off the channel
and turn on the related red led blinking.
If the device reveals a short-circuit situation, it will turn off all channels and all red
leds will blink at a higher frequency than the one they blink at in overload conditions.
On the device there is also a green led to indicate the digital input state for external
activation: it is on when the external contact is closed.
Another green led indicates the state of device on.
Buttons
On the device there are 3 buttons to provide the following functionalities.
9
Installation instructions
30
31
32
33
34
35
36
37
38
39
40
3
4
6
7
Rear view and accessories
Figure 3
Electrical connections
1. Digital input connector for the external operation command
2. Alarm relay output connector
Figure 2
24,54 mm
140
mm
27,01
mm
150
mm
L1
L2
L3
L4
MAN / AUT
INPUT
ON
RESET
MAN
AUT
26,32 mm
96
mm
24,27 mm
92
mm
6
IPS
Elettronica
ALL
mm
9626,32mm
mm
89,5 x24,03
87,5
mm
All the connections are carried out with the removable terminals provided with the
device for a simplified wiring harness. For the wiring harness you can refer to the
figure 5 and to the terminals numeration.
SEL
Front view
Back panel and accessories
L1
5
L2
4
L3
MAN
AUT
RESET
L4
7
POWER
INPUT
ON
VIA LANDA, 2/B
40050 MONTE SAN PIETRO (BO)
ITALY
TELEFONO: +39 051 6762544
INPUT
POWER
SUPPLY
MAN / AUT
ALARM
ALL
48
L4
47
L3
46
L2
45
L1
The IPS device provides
a b l a c k s e l f extinguishing ABS
container. The device
dimensions are
compliance to the
standard of DIN 43700:
96 mm x 96 mm section
and a maximum depth of
150 mm.
The dimensions of the
panel perforation are 92
mm x 92 mm. The fixing
is carried out using the
clamps provided with the
device.
See Figure 4.
44
IPS
Elettronica
1
Mechanical
installation
Elettronica
4 red leds group to signal alarm state for each supply channel
4 green leds group to signal the operation state for each supply channel
Green led to signal the digital input state:external operation command
Reset button to delete alarms
MAN/AUTO button to force manual operation
SEL button to select the manual operation channel
Led to signal the operation state of the device
3
ENABLE
43
Frontal Panel
2
42
Figure 2 represents the scheme of the device.
1.
2.
3.
4.
5.
6.
7.
5
VIA
Device and accessories description
3. Power supply connector
4. 4 electrical loads
supply connectors
5. Supply connector
needed for loads
6. R e m o v a b l e
terminals for wiring
harness
1
7. Clips for device
clamping
2
41
For a right operation, the IPS device has to be installed compliance to the
requirements reported in the Technical Specifications paragraph.
The device provides fixing accessories and removable terminals for electrical
connections.
SEL
24,27
mm
92
mm
Figure 4
6
7