Sensitron SMART S-IS, Instruction Manual

Page: 31 / 40

ENGLISH
Pag. 27
Figure 2) Detector circuit layout with HART module
For the complete description of HART module and HART communication, refer to the proper
technical manual.
WARNING!
1
1
11
22
33
44
55
66
JP1
+
-
A
B
4-20mA Signal with
HART Communication
JP4
1 6
JP6
JP5
JPS2
JPS3
JPC3 JPC2 JPC1
JPP1
S1
JPS2 : Selection of activation event for Relay K2:
Closed on Pin 1-2 : ALARM 1 Selected
Closed on Pin 2-3 : ALARM 2 Selected (Default)
JPS3
: Selection of activation event for Relay K3:
Closed on Pin 1-2 : ALARM 2 Selected
Closed on Pin 2-3 : ALARM 3 Selected (Default)
+
-
JPC1 : Select the contact NO/NC of the K1 relay
Closed 1-2: Normally closed contact (Default)
Closed 2-3: Normally open contact
Relays contacts on
1-2 : Relay K1
3-4 : Relay K2
5-5 : Relay K3
DLB1 , DLB2 , DLB3 :relays status
LED On Relay energized
LED Off Relay de-energized
JPP1 : Global Operation Mode Setting of 3 Relays:
Open : Normally Energized Mode (Default)
Closed : Normally De-Energized Mode
RELAY K2 : User programmable
Default : ALARM 2.
RELAY K3 : User programmable
Default : ALARM 3.
RELAY K1: FAULT
and external watch dog status
(Not programmable by the user)
JP5 : Connector for calibration keypad
H
K
S1 : SET S1 TOWARD H SIDE FOR NORMAL WORKING
WITH HART CONNECTION.
S1 : SET S1 TOWARD K SIDE FOR CALIBRATION WITH
KEYPAD.
POWER SUPPLY
RS485
1 2 3
1 2 3
JPC2 : Select the contact NO/NC of the K2 relay
Closed 1-2: Normally closed contact (Default)
Closed 2-3: Normally open contact
JPC3 : Select the contact NO/NC of the K3 relay
Closed 1-2: Normally closed contact (Default)
Closed 2-3: Normally open contact
JP 6 : connector for flat cable
from HART module board
DLB3
DLB2
DLB1
1
K3 K2 K1
1 1
2 3 4 5
JP4 terminal block
5.5 Detector configuration
The detector provides a 4-20 mA proportional output and a RS485 serial output. Optional
relay and HART cards can be integrated into the detector.
5.6 4-20 mA output connection
The detector is configured to have a 4-20 mA proportional output by default. For the con-
nection of the detector with the control unit and the power supply it is recommended:
³
The use of shielded cable conforming to EN /IEC 60332-3.
³
Wires’ cross section depends on the distance between the control panel and the detec-
tor: for a distance up to m 100 we advise a 3-core wire with cross section area of 0.75
mm2; for a distance between m 100 and 200 we recommend a 3-core wire with cross
section of 1.0 mm2; for a distance between m 200 and 300 we recommend a 3-core
wire with cross section 1.5 mm2.
³
Should any junctions be necessary on wires, please make sure there is no interruption
on the shield.