VEGA 912X-IS FISCO POWER SUPPLIES - Manual (Page 2)

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May 2003
SAFETY
Location of module
Safe area, Zone 2, IIC T4 hazardous area or Class 1, Div 2,
Groups A, B, C, D T4 hazardous location.
Location of field wiring
Zone 1, IIC T4 hazardous area or Class 1, Div 1, Groups A, B,C,
D T4 hazardous location.
Field wiring protection
Intrinsically safe
Certification Code
II(2) GD [EEx ib] IIC, II 3 GD EEx nA IIC T4.
Safety description
14V, 180mA, 2.52W, 0.20 µF*, 300µH*
FM entity parameters
14V, 180mA, 2.52W, 0.20 µF*, 300µH*
ATEX certificate numbers
MTL02ATEX9121
BAS02ATEX7276
FM certificate number
J.I.3012571
Certification is compatible with
Fieldbus FOUNDATION FF816-FISCO.
IEC/TS 60079-27 FISCO Technical Specification.
MECHANICAL
Mounting
DIN rail/surface mounting
Module width
42mm
Weight
360g
LED INDICATORS
OFF ON
Power (green) Power fail Power OK
Fault (red) Normal Fault
Host Comm (yellow) Comms failure Comms OK
IS Comm (yellow) Comms failure Comms OK
◆ ◆ Typically more than 6 IS fieldbus
devices per power supply
◆ ◆ Fieldbus repeater
◆ ◆ Multidrop isolators on single fieldbus link
◆ ◆ Power, fault and repeater LEDs
◆ ◆ 250V ac input/output/power supply
isolation
◆ ◆ Switch selectable terminator on host side
◆ ◆ Fixed terminator on IS side
◆ ◆ Switch selectable power for host side
◆ ◆ Mountable in Zone/Division 2
MODULE SPECIFICATION
See also System Specification
OUTPUT
Number of channels
One
Voltage
12.0V (min.) at 0°C (see note)
Design Current
0 to 120mA
Output ripple
Complies with clause 22.6.2 of the fieldbus standard†
Minimum load
No load
Maximum cable length
Determined by IS load, see Application Note AN9026 for details
Isolation
Input to output: 250V ac rms
Input and output to power supply: 250V ac rms
U
m = 250V rms
INPUT
Input voltage
19.2 - 30V dc
Current consumption:
235mA (typical) 330mA (max.) at 20V
190mA (typical) 265mA (max.) at 24V
155mA (typical) 215mA (max.) at 30V
Power dissipation with 110mA laod:
2.9W (typical) 4.3W (max.)
Input protection
Fuse + supply reversal diode
9121-IS FISCO POWER
SUPPLY - IIC
* When used in accordance with IEC/TS 60079-27, there is no need to take into
consideration Co and Lo.
Note: Temperature coefficient 12mV/°C. If operated below 0°C, the reduced resistance of
the fieldbus cable more that compensates for the reduction in voltage available.
Fieldbus Foundation™ and FOUNDATION™ are trademarks of Fieldbus Foundation, Austin, Texas, USA.
† The applicable fieldbus specifications and standards are:
— FOUNDATION™ Fieldbus 31.25 kb/s Physical Layer Profile
Specification, document FF-816.
— IEC 61158-2: 2000.
— ISA-S50.02-1992 for 31.25 kb/s fieldbus systems.