GMI D5020D Isolators
I.S. SIL2 HART® Isolating Driver
Description
The Isolating Driver D5020 module is a high integrity analog output interface suitable for applications requiring SIL 2 level in safety related systems for high risk industries. It isolates and transfers a 4- 20 mA signal from a controller located in Safe Area to a load in Hazardous Area. It has a high output capacity combined with a low drop across its input terminals. The circuit allows bi-directional communication signals, for HART® smart positioners. Line and load open/short circuit detection is provided: the fault in the field is directly mirrored to the PLC AO and it is also reported by opening the fault output.
FEATURES
- SIL 2 / SC 3
- Output to Zone 0/Div. 1
- Installation in Zone 2/Div. 2
- 2 fully independent channels
- 4-20 mA Input, Output Signal
- HART® compatible
- Line & Load short/open circuit detection
- Field fault mirroring to the PLC AO
- In-field programmability by DIP Switch
- High Accuracy
- Three port isolation, Input/Output/Supply
- High Density, two channels per unit
Discover: D5000
Technical data
Technical Data
Supply |
|
Voltage | 24 Vdc nom (18 to 30 Vdc), reverse polarity protected |
Current Consumption | 70 mA @ 24 Vdc with 20 mA output on 500 Ω load, typical. |
Power Dissipation | 1.3 W @ 24 Vdc with 20 mA output on 500 Ω load, typical. |
Input |
|
Type | 4 to 20 mA with ≤ 2.5 V voltage drop, reverse polarity protected in normal operation, ≥ 5 kΩ impedance (≈ 2 mA sinking from 10 to 30 Vdc) when fault condition detected. |
Output |
|
Type | 4 to 20 mA, on max. 700 Ω load. |
Response time | 25 ms (0 to 100 % step change). |
Fault |
|
Type | Field device and wiring open circuit or short circuit detection; short circuit detection can be disabled via dip-switch. |
Short output | load resistance < 50 Ω or < 100 Ω dip-switch selectable (≈ 2 mA forcing to detect fault). |
Open output | load resistance > (21 V / Loop current) -300 Ω (for example, if Loop current = 20 mA: load resistance > (21 V / 20 mA) -300 Ω = 750 Ω). |
Fault signaling | voltage free NE SPST optocoupled open-collector transistor (output de-energized in fault condition). |
Open-collector/drain rating | 100 mA @ 35 Vdc (≤ 1.5 V voltage drop). |
Leakage current | ≤ 50 μA @ 35 Vdc. |
Response time | ≤ 30 ms. |
Performance |
|
Ref. Conditions | 24 V supply, 250 Ω load, 23 ± 1 °C ambient temperature. |
Calibration accuracy | ≤ ± 0.1 % FSR. |
Linearity accuracy | ≤ ± 0.1 % FSR. |
Temp. influence | ≤ ± 0.01 % FSR on zero/span for a 1 °C change. |
Isolation |
|
Test Voltage | I.S. Out/In 2.5 kV; I.S. Out/Supply 2.5 kV; I.S. Out/Fault 2.5 kV; I.S. Out/I.S. Out 500 V; In/Supply 500 V; In/In 500 V; Fault/In 500 V; Fault/Supply 500 V; Fault/Fault 500 V. |
Environmental conditions |
|
Operating temperature | temperature limits –40 to +70 °C. |
Storage temperature | temperature limits –45 to +80 °C. |
Safety description |
|
Equipment | Associated apparatus and non-sparking electrical equipment. |
Safety parameters | Uo = 25.9 V, Io = 93 mA, Po = 595 mW at terminals 7-8, 9-10. Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C. |
Mounting |
|
Type | DIN-Rail 35 mm, with or without Power Bus or on custom Term. Board. |
Weight | about 145 g |
Connection | by polarized plug-in disconnect screw terminal blocks to accommodate terminations up to 2.5 mm² (13 AWG). |
Dimensions | Width 12.5 mm, Depth 123 mm, Height 120 mm. |
Download
Datasheet D5020D
Instruction manual, 5020S-5020D
Instruction manual, D5000 – D5200 Series
G.M. International srl