2
PSD1206
- PSD1210
- SIL 3 - SIL 2 Switching Power Supply 24 Vdc
G.M. International ISM0076-7
General Description:
The PSD1206 or PSD1210 is a DIN-Rail Power Supply to supply process control equipment and can be located in Safe Area/ Non Hazardous Location or
Zone 2 / Division 2 Hazardous Area / Hazardous Location. PSD1206 provides 24 Vdc nominal with 6 A output current and isolation between input - output - ground (2000 V).
PSD1210 provides 24 Vdc nominal with 10 A output current and isolation between input - output - ground (2000V). These supply units can be paralleled for redundancy operation to
increase availability upgrading the system from SIL 2 to SIL 3 or to increase the output power. Internal power diode for parallel operation prevents fault propagation in parallel
connected supply systems and load sarin distributes current load equally to each power supply to increase reliability and reduce internal power dissipation.
Signalling LED:
Power supply status indication (green).
Alarm:
Output voltage deviation
≥
± 5 % from nominal 24 Vdc. Power ON led is off when output voltage is in overvoltage condition or is blinking in undervoltage or overload condition.
Overvoltage protection:
Three independent overvoltage protections: 1 voltage limiting loop at 27 Vdc and 1 + 1 crowbars at 29 Vdc.
Periodical testing:
builtin provisions for on-site T-proof test without having to remove the enclosure.
EMC:
Fully compliant with CE marking applicable requirements.
High load fuse breaking capacity:
In case of short circuit of one of the loads, the output current has a peak of 430 A for a duration of 0.5 ms (40 times the max. value) and then
reaches 12 A (max. value) after 1.5 ms. For two units in parallel this current reaches 860 A (80 times the max. value). This characteristic ensures the instant breakage of the protective
fuse or circuit breaker. Because of the very short peak duration, other equipments connected are not affected by the failure event and continue to operate without interruption.
Refer to instruction manual ISM0076 for a detailed diagram of the output current.
PSD1206 Switching Power Supply 24 Vdc 6A Output
PSD1210 Switching Power Supply 24 Vdc 10A Output
Characteristics
........................................................................................................................................................................... 2
Technical
Data
.......................................................................................................................................................................... 2
Ordering
Information
................................................................................................................................................................. 3
Features
.................................................................................................................................................................................... 3
Function
Diagram
...................................................................................................................................................................... 3
Warning
..................................................................................................................................................................................... 4
Storage
...................................................................................................................................................................................... 4
Disposal
..................................................................................................................................................................................... 4
Operation
................................................................................................................................................................................... 5
Installation
................................................................................................................................................................................. 5
Start-up
...................................................................................................................................................................................... 6
High load fuse breaking capacity .............................................................................................................................................. 6
Functional Safety Manual for Safety Related Systems and SIL2, SIL3 Applications ................................................................ 6
Functional Safety Specifications from EXIDA analysis and report according IEC 61508 – IEC 61511 .................................... 7
Definitions
.................................................................................................................................................................................. 7
General
Terms
.......................................................................................................................................................................... 8
Assumptions
.............................................................................................................................................................................. 8
Summary of Data from EXIDA .................................................................................................................................................. 9
Notes
....................................................................................................................................................................................... 12
Possible Proof Tests to reveal Dangerous Undetected Faults ................................................................................................ 13
Impact of lifetime of critical components on Failure Rate ........................................................................................................ 17
Influence of PFDavg calculation on efficiency of Proof Test for a 1oo1 architecture. ............................................................. 17
48 Vdc Output with connection in series of power supply ....................................................................................................... 17
48 Vdc Output with 100 % redundance ................................................................................................................................... 18
Side A Configuration ............................................................................................................................................................... 19
Side B configuration ................................................................................................................................................................ 20
Characteristics
Index
Supply:
Input voltage:
95 to 264 Vac (48 to 62 Hz) or 115 to 350 Vdc. Limit supply voltage to 250 Vrms for Instrinsic Safety applications.
Power Factor Correction (AC input):
0.95.
Efficiency:
higher than 80 %.
Max. internal power dissipation PSD1206:
30 W.
Max. internal power dissipation PSD1210:
50 W
AC input current (sinusoidal at full load) PSD1206:
0.8 A @ 230 Vac supply voltage, 1.7 A @ 115 Vac supply voltage
AC input current (sinusoidal at full load) PSD1210:
1.4 A @ 230 Vac supply voltage, 2.8 A @ 115 Vac supply voltage
Protection:
6.5 A fuse (dual).
Connection:
plug-in terminal block for 4 mm
2
wire.
Isolation:
Input to output isolation:
2000 Vrms (routine test).
Input to ground isolation:
2000 Vrms (routine test).
Output:
Output voltage:
24 Vdc (adjustable from 22.8 to 25.2 Vdc).
Regulation:
0.2 % for a 100 % load change.
Stability:
0.1 % for a 20 % line voltage change.
Ripple:
≤
50 mVpp.
Output current PSD1206:
6 A nominal. Parallel connection for redundancy with load sharing.
Output current PSD1210:
10 A nominal, 12 A maximum. Parallel connection for redundancy with load sharing.
Technical Data
