Cod. +050003515 - rel. 1.4 - 29.09.2015
DPWL*: sensore rilevatore perdite gas refrigerante /
refrigerant gas leak sensor
La presente guida ha lo scopo di fornire le operazioni minime da eseguire per una veloce confi gurazione e messa in
funzione del sensore rivelatore di gas refrigerante DPWL alimentato con trasformatore 24Vac. Eseguire la confi gura-
zione delle operazioni riportate nell’elenco contraddistinte dal segno
(quelle evidenziate con il segno – non sono
da fare) seguendo la colonna del “tipo di confi gurazione da eseguire” in accordo al controllo o tipo di collegamento.
Per maggiori informazioni consultare il foglio istr050003510 o manuale t0300035EN.
Conf. Elenco delle azioni da fare
Tipo di confi gurazione da eseguire
pRACK /pCO3
(collegamento
ingresso analogico
4…20mA)
pCO5/PVPRO/
PWPRO (collega-
mento seriale
RS485 Modbus)
IR33 Univ.
(collegamento
ingresso analogico)
Vedi nota 1
Funz.
autonomo
J1-J2
Confi gura il tipo di alimentazione Vac
J1=PRESENTE - J2=NON PRESENTE
Confi gura il tipo di alimentazione Vdc
J1= NON PRESENTE - J2= PRESENTE
J3
Confi gura il segnalatore acustico
J3= PRESENTE = attivo
J3= NON PRESENTE = disattivo
J5-J6
Impostazione del ritardo allarme selezionando il
jumper seguendo la tabella sotto riportata. Se si ha
un collegamento seriale RS485 selezionare J5=Off
e J6=Off , impostando il ritardo da parametro via
seriale.
Delay jumper
Sounder and Relay Delay
J5
J6
OFF
OFF
0 (no delay)
ON
OFF
1 minute
OFF
ON
5 minutes
ON
ON
10 minutes
Legenda:
On=Presente Off =Non Presente
-
SW1-
SW2
Confi gura indirizzo seriale: SW1 seleziona gli indi-
rizzi da 1 a 15. SW2 moltiplica il valore impostato su
SW1 per un valore 16. Vedi tabella 2
Formula: ID = SW1+(SW2 x 16)
Esempio: ID = 17 SW1=1; SW2=1
-
-
-
CN4
Collegare il cavo seriale RS485 prestando attenzio-
ne ai collegamenti Defaul Baud rate 9600. Verifi care
che il software preveda la gestione del sensore.
-
-
-
CN3
Collegamenti uscita digitale N/O – COM
(max 1A/24V)
-
-
-
CN2
Collegare uscita corrente tra 0V e I (vedi Nota 3)
-
-
CN1
Alimentare il sensore con trasformatore esterno
12…24 Vac 3 VA (Se si alimenta solo sensore si
possono usare i seguenti trasformatori:
TRA12VDE00 – pannello,
TRADR4W012 – guida omega,
TRASP3E120 – a spina);
Vedi nota 2
Tab. 1
Legenda
da fare
- non fare
Note:
Usato con controllo IR33 Universale il valore espresso a display in ppm per la versione semiconduttore è x 10, per la
versione infrared x100; È possibile alimentare in DC anche prelevando l’alimentazione da pRACK dai terVTerm e
GND (J24) In questo caso DPWL - J1 non presente, J2 presente; J7 – J8 – J9 – J10 si confi gurano solo se si desidera l’uscita in
tensione (vedi manuale tecnico).
Cambio del baud rate da 9600 (default) a 19.200
1. Posizionare i commutatori rotativi SW1=F e SW2=F;
2. Cortocircuitare per un breve attimo il jumper J4;
3. Rimpostare l’indirizzo desiderato di SW1 e SW2;
4. Per verifi care se è stato cambiato, togliere l’alimentazione e verifi care se alla riaccensione il led rosso esegue un lampeg-
gio (conferma dell’avvenuto cambiamento del parametro);
Per cambiare il livello di soglia allarme ppm
1. Collegare il multimetro in volts DC tra TP3 (0V–GND) e TP1 (alarm).
2. Ruotare il trimmer P1 nella scala da 0 a 5Vdc selezionando il valore ( scala lineare). Per il calcolo applicare la seguente formula:
V
(TP1-TP3)
=
ppm (set point desiderato) x 5V
max valore fondo scala ppm
Es. sensore ver. semiconduttore
con set point a 500 ppm
V
(TP1-TP3)
=
500 x 5
1000
= 2,5 V
max valore fondo scala ppm:
Semiconduttore = 1000; Infrared = 10000.
Se possibile, cambiare la soglia allarme da supervisore o parametri modbus.
Esempio selezione indirizzo ID (SW1-SW2)
Address SW1 SW2
Selection
Address SW1 SW2
Selection
Address SW1 SW2
Selection
0
0
0
Reserve
11
B
0
Address 11
………
…. ……
………….
1
1
0
Address 1
12
C
0
Address 12
246
6
F
Address 246
2
2
0
Address 2
13
D
0
Address 13
247
7
F
Address 247
3
3
0
Address 3
14
E
0
Address 14
248
8
F
Reserve
4
4
0
Address 4
15
F
0
Address 15
249
9
F
Reserve
5
5
0
Address 5
16
0
1
Address 16
250
A
F
Reserve
6
6
0
Address 6
17
1
1
Address 17
251
B
F
Reserve
7
7
0
Address 7
18
2
1
Address 18
252
C
F
Reserve
8
8
0
Address 8
19
3
1
Address 19
253
D
F
Reserve
9
9
0
Address 9
20
4
1
Address 20
254
E
F
9600 Baud rate
10
A
0
Address 10
21
5
1
Address 21
255
F
F
19200 Baud rate
Tab. 2
The purpose of this guide is to describe the minimum operations required for quick confi guration and setup of the
DPWL refrigerant gas sensor supplied with 24 Vac transformer. Perform the confi guration operations shown in the list
marked
(those marked – should be skipped) under the “Type of confi guration required” column, depending on the
controller used or type of connection. For further information see instruction sheet +050003510 or technical manual
+0300035EN.
Conf. List of operations
Type of confi guration required
pRack /pCO3
(4 to 20 mA
analogue input
connection)
pCO5/PVPRO /
PWPRO (RS485
Modbus serial
connection)
IR33 Univ. (analogue
input connection)
See note 1
Stand-alone
operation
J1-J2
Set the type of power supply Vac
J1=PRESENT - J2=NOT PRESENT
Set the type of power supply Vdc
J1= PRESENT - J2= NOT PRESENT
J3
Enable audible signal
J3= PRESENT = enabled
J3= NOT PRESENT = disabled
J5-J6
Set the alarm delay by setting the jumpers shown
in the table below. If an RS485 serial connection is
used, select J5=Off and J6=Off , setting the delay by
parameter via the serial connection.
Delay jumper Sounder and Relay Delay
J5
J6
OFF
OFF
0 (no delay)
ON
OFF
1 minute
OFF
ON
5 minutes
ON
ON
10 minutes
Key:
On=Present Off =Not present
-
SW1-
SW2
Set serial address: SW1 selects addresses from 1 to
15. SW2 multiplies the value set on SW1 by value
16. See table 2
Formula: ID = SW1+(SW2 x 16)
Example: ID = 17 SW1=1; SW2=1
-
-
-
CN4
Carefully connect the RS485 serial cable. Default
baud rate 9600. Make sure the software allows
management of the sensor.
-
-
-
CN3
N/O – COM digital output connections
(max 1A/24V)
-
-
-
CN2
Connect current output between
0V and I (see Note 3)
-
-
CN1
Power up the sensor with 12-24 Vac 3 VA external
transformer (if only powering the sensor the
following transformers can be used:
TRA12VDE00 – panel,
TRADR4W012 – DIN rail,
TRASP3E120 – plug-in);
See note 2
Tab. 1
Key
to do
- not to do
Note:
When used with the IR33 Universal controller the value on the display in ppm for the semiconductor version is x 10, for the
infrared version is x100; DC power is also available from the pRack via the +VTerm and GND (J24) terminals. In this case,
DPWL - J1 is not present, J2 is present; J7 – J8 – J9 – J10 are only confi gured for voltage output (see the technical manual).
Changing the baud rate from 9600 (default) to 19200
1. Switch rotary selectors SW1=F and SW2=F;
2. Jumper terminal J4 for a brief moment;
3. Reset the desired address on SW1 and SW2;
4. To make sure that the setting has been changed, power down and when restarting check that the red LED fl ashes (confi r-
ming the parameter has been changed);
Changing the alarm threshold in ppm
1. Connect the multimeter with DC voltage setting between TP3 (0V–GND) and TP1 (alarm).
2. Turn trimmer P1 on the scale from 0 to 5 Vdc to select the value (linear scale). For the calculation apply the following formula:
V
(TP1-TP3)
=
ppm (set point desiderato) x 5V
max valore fondo scala ppm
E.g. semiconductor ver. sensor
with set point 500 ppm
V
(TP1-TP3)
=
500 x 5
1000
= 2,5 V
max. full scale ppm value:
Semiconduttore = 1000; Infrared = 10000.
It is possible change the threshold alarm by supervisor or modbus parameter.
Example address ID settings (SW1-SW2)
Address SW1 SW2
Selection
Address SW1 SW2
Selection
Address SW1 SW2
Selection
0
0
0
Reserve
11
B
0
Address 11
………
…. ……
………….
1
1
0
Address 1
12
C
0
Address 12
246
6
F
Address 246
2
2
0
Address 2
13
D
0
Address 13
247
7
F
Address 247
3
3
0
Address 3
14
E
0
Address 14
248
8
F
Reserve
4
4
0
Address 4
15
F
0
Address 15
249
9
F
Reserve
5
5
0
Address 5
16
0
1
Address 16
250
A
F
Reserve
6
6
0
Address 6
17
1
1
Address 17
251
B
F
Reserve
7
7
0
Address 7
18
2
1
Address 18
252
C
F
Reserve
8
8
0
Address 8
19
3
1
Address 19
253
D
F
Reserve
9
9
0
Address 9
20
4
1
Address 20
254
E
F
9600 Baud rate
10
A
0
Address 10
21
5
1
Address 21
255
F
F
19200 Baud rate
Tab. 2
Semiconductor sensor R22-R134a-R404a-R407a-
R407c-R407f-R410a-R507a-R290-CO2 version
Infrared sensor
CO
2
version
Semiconductor
(SC) Sensor
PC board
GREEN
LED
RED
LED
TP2
(Vs)
TP
(Alarm)
Reset
J4
Addressing
SW1
SW2
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
Alarm
P1
P4
4-20mA
J3
J2
J1
AC Select
DC
Select
0 0 1 2
5 10 5 10
CN4
CN2
SPAN
Volts
TP3
(0V)
Board
Ground
Plane
Test Point
Sensor
Voltage
Test Point
Audible Alarm
and Relay Set Point
Voltage Test Point
J7 J8 J9 J10
A
U
D
IBLE ALA
R
M
N/O
N/C
CO
M
CN3
G
Modbus
+
–
GNX
Output Signal
V
I
12-24 Vdc
CN1
0V V+
P3
J5
J6
Delay
ADJ V
P2
TP1(Alarm)
Addressing
Alarm
Reset
J5
J6
J4
J3
SW1
SW2
Infrared
(IR-RS)
Sensor
PC board
J2
TP2 (Vs)
GREEN
LED
RED
LED
J1
AC Select
DC
Select
0 0 1 2
5 10 5 10
P4
P1
Zero
P2
CN4
CN2
SPAN
Volts
TP3 (0V)
J7 J8 J9 J10
0
1
2
3
4
5
6
7
8
9
A
B
0
1
2
3
4
5
6
7
8
9
A
B
A
U
D
IBLE ALA
R
M
N/O
N/C
CO
M
CN3
G
Modbus
+
–
GNX
Output Signal
V
I
12-24 Vdc
CN1
0V V+
4-20mA
P3
Delay
SIGNAL
TX
+V
–V
RX
Fig. 1
Fig. 2
Legenda:
SW1 and SW2
Modbus Addressing
J4 Reset Jumper
J3 Audible Alarm
Jumper
CN3 Relay Connector
N/O
N/C
CO
M
CN3
N
/
O
Norma
ll
y
Open
C
O
M
Common
N
/C
Norma
ll
y
C
l
osed
Reserved
Address
0
F
:
F
0
1
:
1
:
7
D00
248
:
255
D0
1
D02
:
D
1
7
:
247
0
SW2
(MSB)
ADDR
(D
E
C)
SW1
(
L
SB)
8
:
F
1
0
:
1
:
7
Va
l
id
Addresses
Reserved
Addresses
O
FF
Norma
l
Operation
J4
Reset
ON
(
Th
en
O
FF
)
J1 and J2 Power Supply
Selection Jumper
P1-P4 Adjustment Pots
J5 and J6 Delay Jumper
for Audible Alarm and Relay
AC
Po
w
er
Se
l
ected
DC
Po
w
er
Se
l
ected
O
FF
J
1
J2
ON
O
FF
ON
J
1
P
1
P2
P3
P4
J2
CN
1
1
2-24
Vac
1
2-24
Vdc
CN
1
0V V
+
1
0
5
1
0
J5
J6
J5
J6
J5
J6
J5
J6
0
Minutes
(No
De
l
ay)
Ad
j
usts
A
l
arm
Setpoint
for
Audib
l
e
A
l
arm
and
Re
l
ay
Ad
j
usts
Z
ero
Leve
l
Vo
l
tage
for
Output
Signa
l
Ad
j
usts
Output
Signa
l
Span
Ad
j
usts
4-20
mA
Current
Output
1
Minutes
De
l
ay
5
Minutes
De
l
ay
1
0
Minutes
De
l
ay
CN4 Modbus Connector
J7-J10 Output Jumper
for CN2 Output Signal Connector
G
Modbus
+ –
G
Ground
(Iso
l
ated
from
0V)
+
Non-inverting
Modbus
Signa
l
T
xD
+
/RxD
+
–
Non-inverting
Modbus
Signa
l
T
xD
–
/RxD
–
GNX
Output
Signa
l
V
I
GNX
J7
J8
J
9
J
10
0
Vo
l
t,
Ground
V
0-5
V
Output
0-
1
0
V
Output
1
-5
V
Output
2-
1
0
V
Output
I
Current
Output,
4-20
mA
