ESA Ex22DSR User manual

MASTER UNITS BUS SYSTEM
DOCUMENTATION INDEX
1.1 Description
2.1 Standard features (List)
2.2 Standard features (Details)
3.1 Installation rules and security
4.1 Technical features
5.1 Enter data in set mode
6.1 Display indications in operation
7.1 Information and guide on the display
8.1 Information and guide on the display
9.1 Wiring Diagram
10.1 Electronic board size and voltage settings
11.1 Enclosure dimensions
12.1 Problems solutions
13.1 Warranty
14.1 Certificates
1.1 DESCRIPTION
Master unit for BUS SYSTEM for dedusting plant cleaning cycle control without dP control.
2.1 STANDARD FEATURES
A2a Relay Voltage ON (K1)
B10b Manual activation of every single output from keyboard
B1b Select Number of outputs
B2x Activation time from 0.05 to 5.00 sec.
B3x Interval time from 1 to 999 sec.
B8a Short-circuit protection of every single output
B9b Electric control of output activation
C0 Input activation from external contacts
C4c Cleaning cycle
C6a ON/OFF cleaning cycle from external pressure switch. STOP at the end of the cycle
D14a Operation hours-counter
D1a3 Additional cycles from voltfree contact. ALWAYS enabled.
D6a ON/OFF cleaning cycle from external contact
G1 Maximum load power 25W per output
HVA Input voltage selection
SL Multi language display
Code: Ex22DSR : ATEX - Zone 22
Voltage IN / OUT: 115 VAC - 230 VAC (24 VAC - 24 VDC On Request)
Max Nr. Output: 1
GENERIC DOCUMENTATION. THE SPECIFIC DOCUMENTATION IS ATTACHED TO THE SEQUENCER
II 3D Ex tc IIIC IP65 T100°C

2.2 STANDARD FEATURES
Code Description
A2a Relay Voltage ON (K1)
If the device is supplied, relay K1 is activated and the terminal board contact is closed. In case of power failure, this
contact is open.
B10b Manual activation of every single output from keyboard
By keyboard, it is possible to activate manually and individually every single output for an operation test.
Press key C to select the desired output to be activated. Press key A to activate the output.
The output is holded active for all the time that key A is pressed. It allows to measure the output voltage by using a
tester.
In case of anomalous operating, do this test with electrovalves disconnected.
B1b Select Number of outputs
The selection of the number of outputs to be control led is connected by keyboard in SET MODE. If you set 0 or AUTO
in this function the sequencer will automatically select the connected loads by skipping the non connected ones.
Minimum load 5W ÷ 12 W depending on the output voltage. If the load is below of the minimum, the autoselection does
not work correctly, set the number of outputs in set up.
B2x Activation time from 0.05 to 5.00 sec.
B3x Interval time from 1 to 999 sec.
If the pulse time is lower than 1 sec. it is possible to set any interval time value in the range indicated.
If the activation time is higher than 1 sec. the minimum settable interval time is:
Minumum interval time = 5 times pulse time (B2x)
B8a Short-circuit protection of every single output
In case of short circuit, the output is automatically skipped, the relay K1, normally active, is deactivated and the terminal
board contact opens.
The display alternatively shows code E1 and the number of the faulty output.
Press key B to reset the alarm.
B9b Electric control of output activation
If a solenoid valve is not activated, the relay K2 indicate the alarm condition and the display shows the alarm condition
code E2 (See alarm description).
Press key 'E' to reset alarm condition.
ATTENTION: this function will be active only if the automatic selection of the load in set up is not selected.
The alarm switch on after 5 consecutive fails on the same output.
C0 Input activation from external contacts
In Set up you can activate or deactivate the control of all the inputs of the device.
If inputs are deactivated, they are considered as always closed and no jumper is required on the terminal board.
Use a jumper for unused inputs if you activate them.
NOTE: all inputs of the device have to be connected to external contact without voltage.
C4c Cleaning cycle
If all the conditions necessary for the start of cleaning cycle (e.g. fan On, external consents C6 or D6 present) are
present when supply voltage is switched on, automatically the device activates the outputs in sequencial way with
timing set by keyboard
C6a ON/OFF cleaning cycle from external pressure switch. STOP at the end of the cycle
With digital inputs enabled and with contact C6a open the cleaning cycle stops at the end of the cleaning cycle and
display shows 'CYCLE STOPS FOR LOW dP'.
When C6a is closed the cleaning cycle restart.
NOTE. Put a wire between the clamps of input C6a if not used with inputs enabled.
D14a Operation hours-counter
In Setup it is possible to visualize an hours counter. This counter is active when the cleaning cycle in On. In case of fan
stop, consent D6 not present or with the device in Setup the counter stops.
D1a3 Additional cycles from voltfree contact. ALWAYS enabled.
By connecting an NO auxiliary contact of the circuit intended to drive the fan with the sequencer, it is possible to add a
pre-set number of cleaning cycles after the fan stop. Their number can be set from 0 to 99 by keyboard.
Post-cleaning cycles are activated even if dP = 0 or C6x open.
If contact D1a3 is open, the display shows the indication of fan stop (See operation table 6.1).
The display shows 'POST-CLEANING ACT' or decimal points blink, according to the model, during additional cycles.
NOTE. Jump D1a3 clamps if it is not used with inputs enabled.

2.2 STANDARD FEATURES
Code Description
D6a ON/OFF cleaning cycle from external contact
If contact D6a is open, the cleaning cycle is not enabled and the display shows 'START CONTACT D6a OPEN'.
Close D6a to start cleaning cycle from the first electrovalve.
NOTE D6a: Jump D6a if it is not used with inputs from external contact active (See Setup 5.1).
G1 Maximum load power 25W per output
HVA Input voltage selection
By some jumpers on the board it is possible to change the supply voltage. (See label on the device pr board layout).
The ouput voltage for the electrovalves (BUS line) is fixed 24VDC.
JP1: Supply voltage selection between 115VAC or 230VAC.
SL Multi language display
In Set up it is possible to select the language of all the descriptions showed by the display:
Italian, English, French, German, Spanish.

3.1 INSTALLATION RULES AND SECURITY
3.2 Protect the device against the direct exposure to the sun.
3.3 Avoid arranging the device in the proximity of or in direct contact with any source of heat and electromagnetic field. Connect
the device on supply lines different from those used for motor drives or other devices that may cause some noise on the
net.
Not security equipment.
3.4 Fix the device on the wall at minimum 60 cm from the floor.
3.5 The access to the device to adjust operating parameters have to be done by person with appropriate skills.
3.6 Before acting on the device for any operation, check for safe conditions. For electrical operations never forget to disconnect
the power supply, wait for 30 seconds for the internal capacitors discharge before opening. At the end of the operations
close the device to restore the protection degree before powering again.
3.7 In case of faulty that does not depend only the fuse, switch off immediately the supply voltage and contact the supplier.
3.8 One time in a month or more frequently if necessary verify if there is dust on the enclosure of the device and remove it if it is
present by using wet cloth.
3.9 For supply voltages, cabling and voltages applicable to the relay contacts, follow the current rules
3.10 For all input control signals to the Timer (D1a, D5, D6,...) use anti-flame wires with a minimum section of 0.5 mm².
3.11 For the electrical connection of the supply voltage and filter cleaning electrovalves use anti-flame wires with a minimum
section of 0.75 mm². For output relay contacts use anti-flame wires with a minimum section of 1.5 mm2.
3.12 The lack of application of existing rules and standards of installation and safety exonerate the manufacturer of
responsibility.
3.13 For the output signal 4÷20 mA related to dP use anti-flame shielded wire with minimum section of 0,5 mm². (Option on
request. Code: C11a)
3.14 Do not connect to earth the common of the electrovalves (see electrical wiring diagram).
4.1 TECHNICAL FEATURES
Power requirement 10 VA (Stand-by) - 30 VA Max ev ON
Operating temperature - 10 °C ÷ + 50 °C
Dimensions / Protection degree 240x185x114 mm. / IP65
Terminals 2,5 mm² - 250 VAC / 12 A
Voltage applicable to the relay contacts 42 VAC - 5 A Max / 42VDC - 3A Max
A wrong supply voltage connection might cause irreparable damages to the device.
The fuse wire protect only from any short circuit and not necessarily from wrong supply voltage.

5.1 ENTER DATA IN SET MODE
SETUP / DISPLAY DESCRIPTION Range Code Default
00 LANGUAGE SEL.
SL ENGLISH Display language selection SL
01 DIGITAL INPUTS
C0 DISABLE ENABLE / DISABLE inputs from external contacts C0
03 PULSE TIME
B2x 0.50 sec. Pulse time from 0.05 to 5.00 sec. 0.01÷5.00 B2x 0.50 sec
04 INTERVAL TIME
B3x 005 sec. Interval time between ev. from 1 to 999 sec. 001÷999 B3x 5 sec
05 POSTCL INT.
B3c 005 sec. Interval time between ev. during post-cleaning from 1 to 999 sec. 001÷999 B3c 5 sec
06 POST CYCLES
D1x 002 cycles Number additional cycles after fan stop 00÷99 D1x 5
07 ELECTROVAL.N.
B1b 016 ev. Selection Number of electrovalves B1a
08 EV TEST
B10b 001 OFF TEST Manual activation of every single ev. from keyboard B10
09 HOURS COUNTER
D14a 00000 Hours Operation hours-counter 0÷65535 D14a
17 INPUT 2 SEL.
C0b IN = C6 Input selection from external contact 2: IN=C6a / IN=D6a. See 2.2
Standard Features. C0b

6.1 DISPLAY INDICATIONS IN OPERATION
DISPLAY DESCRIPTION Code
010 mg/m³ (A) TC Probe reading (xx mg/m³)
TC Probe reading is option on request. D11
START CONTACT
D6a OPEN Cycle stop since no remote start D6a
VENTILATOR STOP Cycle stops waiting for fan start or dP under set fan threshold (See SET 11 section
5.1) D1x
ACTIVAT EV. 003 Activation output solenoid valve 3
WAITING=005 sec Waiting time before activation of the next ev.
CYCLE STOP
FOR dP LOW Cycle stopped due to lack consensus C6A. Contact C6a/D6a open. (See 2.2) C6a
POSTCLEANING ACT Additional cycles after fan stop active D1x
Keypad lock (Option on request) Kb1

7.1 DISPLAY INDICATIONS WITH ALARM
DISPLAY DESCRIPTION Code
E1 OVERLOAD
ELECTROVALVE 003 Overload alarm solenoid valves 3 B8b
E2 ACT. FAILED
ELECTROVALVE 003 Solenoid valve not activated - Solenoid valves 03 (option on request) B9x/B6x
8.1 INFORMATION AND GUIDE ON THE DISPLAY
8.1 INFORMATION AND GUIDE ON THE DISPLAY
Not available for this model

9.1 WIRING DIAGRAM

10.1 ELECTRONIC BOARD SIZE AND VOLTAGE SETTINGS

11.1 ENCLOSURE DIMENSIONS

12.1 PROBLEMS SOLUTIONS
DEFECT POSSIBLE CAUSE SOLUTION
Display OFF Fuse burnt.
Supply voltage.
Jumper for input voltage selection
Check the protection fuse on supply line.
Check if supply voltage is present and if it
agrees with supply voltage needed by the
device (clamps 1 and 2).
Check jumper JP1.
No output activation Output voltage.
Connection to the electrovalves.
Jumper for output voltage selection
Check that sequencer output voltage and
electrovalve coils have the same voltage.
Check the connection between sequencer
and electrovalves and do manual test of
the outputs (See B10 / B10b).
Check jumper JP2 and JP3.
The cleaning cycle do not run in according
to the set value. The memory of the microprocessor could be modified by external factor. Switch Off the supply voltage of the sequencer. Hold down key A and switch
on the supply voltage. By means of this
operation the default data are loaded in set
up. Adjust the zero dP reading and the
other parameters according to the filter's
needs.
13.1 WARRANTY
The warranty lasts 4 years. The company will replace any defective electronic component, exclusively at our laboratory, unless
otherwise agreed, upon the Company's prior consent.
WARRANTY EXCLUSION
The warranty is not valid in case of:
1) Tampering or unauthorized repairs.
2) Wrong use of the device, not in compliance with technical data.
3) Wrong electrical wiring.
4) Inobservance of the installation rules.
5) Use of the device, not in compliance with CE rules.
6) Atmospheric events (Lightning, electrostatic discharge), Overvoltage.
We reserve the right to make any change without notice.

Company name / Company name: ESA Electronic Engineering
Postal address / Postal address: Via Kennedy, 28
Postcode and City / Postcode and City: 20010 Mesero (MI)
Telephone / Telephone: [phone]
E-Mail address / E-Mail address: [email protected]
declare that the DoC is issued under our sole responsibility and belongs to the following product:
Apparatus model / Apparatus model: Ex22DSR
Product Type / Product Type: Sequencer / Sequencer
Serial number / Serial number:
Object of the declaration / Object of the declaration: Ex22DSR
The object of the declaration described above is in conformity with the relevant Union harmonisation legislation
The object of the declaration described above is in conformity with the relevant Union harmonisation legislation
Directives 2014/30/UE, 2014/34/UE and 2011/65/UE
Directives 2014/30/UE, 2014/34/UE and 2011/65/UE
The following harmonised standards and technical specifications have been applied:
The following harmonised standards and technical specifications have been applied:
Title / Title Date of standard / Date of standard
EN 60730-1 2011
EN 50581 2012
EN 60079-0 / A11:2013 2013-09
EN 60079-31 2014
II 3D Ex tc IIIC IP65 T100°C
Signed for and on behalf of / Signed for and on behalf of
Mesero, 02 / 11 / 2020
Amministratore delegato / Managing directior
BELLINELLI GIANFRANCO

II 3D Ex tc IIIC IP65 T100°C
ADDITIONAL INSTALLATION RULES (ATEX ZONA 22)
The ATEX certification decade in case of every type of modifications of the original device that are not done by the manifacturer
All the electrical wiring must be done according to the Europen rule EN 60079-14
In case of faulty that does not depend only to the fuse, switch off immediately the supply voltage and contact the supplier. The
reparation of the device must be done only in our laboratory and the device must be sent with the enclosure to our factory.
In case of application of cable glands by the final user, The company does not assume any responsibility. Use only cable glands
IP65 ATEX certified with same or superior certification of the device and type ISO R/68.
The fixing holes must be done with the right diameter indicated for that cable gland.
With the purpose to avoid the entry of dust inside the equipment through the pneumatic connections for the reading of the dP,
insert on such lines an opportune systems for dusts blocking.
ATEX MARKING DETAILS
EUROPEAN UNION Conformity brand
Useful in ATEX classified zone with potentially explosive atmosphere.
II Group II. Surface plant
3D Category - Dust
Ex tc Level of protection by enclosure
IIIC Explosive conductive powders
IP65 Protection degree
T100°C Maximum surface temperature
-10<Ta<+50°C Ambient temperature