GE 8034-CC-12 Intrinsically Safe Carrier Extension
♦ 8 inputs - any combination of inputs and outputs
♦ Certified for use in SIL 2 safety applications
♦ Non-arcing inputs and outputs
♦ Output channels rated up to 2A continuous
♦ Inputs for dry contact switches
♦ 24Vdc Bussed Field Power required from 8914-PS-AC
MODULE SPECIFICATION
See also System Specification
Number of channels ..............................................................8
(independently configured as inputs or outputs)
INPUTS
ON/OFF threshold current ....................................0.9mA (typ.)
O/C Voltage......................24V dc (typ.) - depends on BFP Supply
Wetting current ......................................................1.2mA (typ.)
Minimum pulse width detected........................................5ms
Max input frequency in pulse counting mode (no debounce) 30Hz
Isolation (any channel to Railbus).......................................250V ac
OUTPUTS
Maximum Output Current per Channel ................................2A
Maximum Output Current per Module
Continuous ........................................................................................6A
Non-continuous (<10 seconds)..........................................................8A
INPUT CONFIGURABLE PARAMETERS
Filter time interval ....................................0 to 8s (in 1ms steps)
Earth Leakage Detection Channel ............................ON/OFF
Latch inputs ........................................................enable /disable
Latch polarity ....................................latch on high/latch on low
Pulse counting ....................up transition/down transition/disable
Line fault detection.......... none/open circuit/open & short circuit
OUTPUT CONFIGURABLE PARAMETERS
Output type ..............................................pulse/discrete/pattern
Pulse width................................................................1ms to 60s
Line fault detection*..........open line & short circuit detect /disable
* Normally de-energised channels only
RESISTANCE MEASUREMENT ACCURACY
For normally de-energised output open and short-circuit
detection.
With forward biased test current
.................................... ±(3.4%+5.3Ω) for line resistance ≤ 220Ω
..greater of: ±7% or ±(3.1%+27Ω) for line resistance >220Ω, <1kΩ
With reverse biased test current
................................................greater of: ±7% or ±(3.1%+430Ω)
RESPONSE TIME
Input Signal change to availability on Railbus .....5ms (max.)
Railbus command to output change .......................1ms (max.)

HAZARDOUS AREA SPECIFICATION
Protection Technique.......................................EEx nA nL IIC T4
Location (FM and CSA) ............Class 1, Div.2, Grps A,B,C,D T4
POWER SUPPLIES
System Power Supply ........................50mA (typ.), 70mA (max.)
Bussed Field Power Supply
All channels configured as inputs ................................50mA (max)
Any channels configured as output......50mA + output load currents
MECHANICAL
Module key code ..................................................................B6
Module width ..................................................................42mm
Weight ................................................................................210g
For recommended and compatible Field Terminals, see
Field Terminal - Specification and Selection Guide.