D1048
- SIL 3 Digital Output Driver NE Loads Loop Powered
G.M. International ISM0096-4
2
General Description:
The single channel DIN-Rail Loop Powered Digital Output Isolator, D1048S, is suitable for driving solenoid valves, visual or audible alarms to alert a plant operator,
or other process control devices in Hazardous Area from a driving signal in Safe Area. It can also be used as a controllable supply to power measuring or process control equipment.
Its use is allowed in applications requiring up to SIL 3 level (according to IEC 61508) in safety related systems for high risk industries.
The Safety PLC or DCS driving signal powers the field device through the D1048S, which provides isolation and is capable of monitoring the conditions of the line.
Short and open circuit diagnostic monitoring, dip-switch selectable and active when input power is present, provides LED indication and NC transistor output signaling.
When fault is detected output is de-energized until normal condition is restored. Line short and open output circuit fault detection is also reflected on the PLC / DCS input circuit
providing less than 10 mA consumption.
An override input, dip-switch selectable, is provided to permit a safety system to override the control signal. When enabled, a low input voltage always de-energizes the field device
regardless of the input signal.
Three basic output circuits are selectable, with different safety parameters, to interface the majority of devices on the market. The selection among the three output characteristics
is obtained by connecting the field device to a different terminal block.
Function:
1 channel I.S. digital output to operate Hazardous Area normally energized loads from PLC or DCS drive logics in Safe Area, providing 3 port isolation (input/output/fault).
Signalling LEDs:
Output status (yellow), fault condition (red).
Field Configurability:
Line Fault Detection enable or disable and Override Control Input enable or disable.
EMC:
Fully compliant with CE marking applicable requirements.
Characteristics
Loop Input:
loop powered control signal.
Loop Supply:
24 Vdc nom (20 to 30 Vdc) reverse polarity protected, 2 A time lag fuse internally protected. Supplies also diagnostic monitoring control circuit.
Current consumption @ 24 V:
65 mA with 45 mA output typical in normal operation,
≤
10 mA when fault circuit enabled and fault condition detected.
Power dissipation:
1.1 W with 24 V supply, output energized at 45 mA nominal load.
Max. power consumption:
at 30 V supply voltage, 1.8 W.
Override Input:
override control signal de-energizes output when enabled by dip-switch.
Override range:
24 Vdc nom (20 to 30 Vdc) to disable (field device controlled by input), 0 to 5 Vdc to de-energize field device, reverse polarity protected.
Current consumption @ 24 V:
5 mA.
Isolation (Test Voltage):
I.S. Out/In 1.5 KV; I.S. Out/Override 1.5 KV; I.S. Out/Fault 1.5 KV; In/Fault 500 V; In/Override 500 V; Fault/Override 500 V.
Output:
45 mA at 13.0 V (21.0 V no load, 174
Ω
series resistance) at terminals 13-16 Out A.
45 mA at 10.2 V (21.0 V no load, 236
Ω
series resistance) at terminals 14-16 Out B.
45 mA at 8.5 V (21.0 V no load, 275
Ω
series resistance) at terminals 15-16 Out C.
Short circuit current:
≥
50 mA (55 mA typical).
Response time:
75 ms.
Fault detection:
field device and wiring open circuit or short circuit detection dip-switch selectable. When fault is detected output is de-energized until normal condition is restored.
Short output detection:
load resistance
≤
50
Ω
(
≈
2 mA forcing to detect fault).
Open output detection:
load resistance > 10 K
Ω
.
Fault signalling:
voltage free NE SPST optocoupled open-collector transistor (output de-energized in fault condition and when input power not present).
Open-collector rating:
100 mA at 35 Vdc (
≤
1.5 V voltage drop).
Leakage current:
≤
50 µA at 35 Vdc.
Loop input consumption:
≤
10 mA when fault detected.
Response time:
≤
5 ms.
Compatibility:
CE mark compliant, conforms to 94/9/EC Atex Directive and to 2004/108/CE EMC Directive.
Environmental conditions:
Operating:
temperature limits -20 to + 60 °C, relative humidity max 90 % non condensing, up to 35 °C.
Storage:
temperature limits – 45 to + 80 °C.
Safety Description:
ATEX:
II 3(1) G Ex nA [ia Ga] IIC T4 Gc, II (1) D [Ex ia Da] IIIC, I (M1) [Ex ia Ma] I
IECEx:
Ex nA [ia Ga] IIC T4 Gc, [Ex ia Da] IIIC, [Ex ia Ma] I,
associated apparatus and non-sparking electrical equipment.
Uo/Voc = 24.8 V, Io/Isc = 147 mA, Po/Po = 907 mW at terminals 13-16 Out A.
Uo/Voc = 24.8 V, Io/Isc = 108 mA, Po/Po = 667 mW at terminals 14-16 Out B.
Uo/Voc = 24.8 V, Io/Isc = 93 mA, Po/Po = 571 mW at terminals 15-16 Out C.
Um = 250 Vrms, -20 °C
≤
Ta
≤
60 °C.
Approvals:
DMT 01 ATEX E 042 X conforms to EN60079-0, EN60079-11, EN60079-15, EN60079-26, EN61241-11,
IECEx BVS 07.0027X conforms to IEC60079-0, IEC60079-11, IEC60079-15, IEC60079-26, IEC61241-11,
FM & FM-C No. 3024643, 3029921C, conforms to Class 3600, 3610, 3611, 3810 and C22.2 No.142, C22.2 No.157, C22.2 No.213, E60079-0, E60079-11, E60079-15.
TUV Certificate No. C-IS-204194-01, SIL 3 conforms to IEC61508. Please refer to Functional Safety Manual for SIL applications.
Mounting:
T35 DIN Rail according to EN50022.
Weight:
about 130 g.
Connection:
by polarized plug-in disconnect screw terminal blocks to accomodate terminations up to 2.5 mm
2
.
Location:
Safe Area/Non Hazardous Locations or Zone 2, Group IIC T4, Class I, Division 2, Groups A, B, C, D Temperature Code T4 and Class I, Zone 2, Group IIC, IIB, IIA T4 installation.
Protection class:
IP 20.
Dimensions:
Width 22.5 mm, Depth 99 mm, Height 114.5 mm.
Technical Data
2
4
6
8
10
12
14
16
18
20
22
13
V (V)
I (mA)
0
D1048 Output Diagram
Rout
≤
174
Ω
(Out A)
10
0
20
30
40
50
21
10.2
8.5
45
Vo
≥
21.0 V (no load)
Rout
≤
236
Ω
(Out B)
Rout
≤
275
Ω
(Out C)
Ilim
≥
50 mA
Out A
Out B
Out C
For Safety Related System and SIL2, SIL3 Applications according IEC61508 & IEC61511 Standards refer to “Functional Safety Manual” document number ISM0071
SIL Applications
