SPECIFICATIONS
Part Number: IS200TBCIH2B
Manufacturer: General Electric
Series: Mark VIe
Function: Contact Input with Group Isolation
Size: 33.02 cm high x 10.16 cm wide
Temperature: -30 to 65 degrees Celsius
No.of channels: 24 contact voltage input channels
Input filter: Hardware filter, 4 ms
Power consumption: 20.6 W on the terminal board
Voltage: 24 VDC
Replacement Module: TBCIH2C
Connection Type: Cables or J-Port
Manual: GEH-6721L
Product type: PCB
Availability: In Stock
Country of Manufacture: United States (USA)
Functional Description
IS200TBCIH2B is a Contact Input Terminal Board developed by GE under Mark VIe control system. The terminal board Contact Input with Group Isolation accepts 24 dry contact inputs wired to two barrier-type terminal blocks. For contact excitation, it is wired with dc power. Surge and high-frequency noise are protected by noise suppression circuitry in the contact inputs. The board is compatible with the PDIA I/O pack and can handle simplex, dual, and TMR applications. This board accepts twenty-four dry contact inputs that are wired to two barrier-type terminal blocks. This board also includes noise suppression to aid in the prevention of high-frequency noise and surges.One, two, or three PDIAs can be directly connected to the module. For correct mechanical alignment of connector JT1 with I/O pack mechanical support, Mark VIe requires the C version of this board.
IS200TBCIH2B Features
- Do not inadvertently connect the 240 V ac and dc voltages in 240 V ac applications. The peak voltage will exceed the MOV rating, causing the device to fail. Most ac supplies have a grounded neutral, and if an inadvertent connection between the 125 V dc and the ac voltage is made, the sum of the ac peak voltage and the 125 V dc is applied to MOVs connected between dc and ground. In 120 V ac applications, however, the MOV rating can withstand the peak voltage without failing.
- The terminal board is capable of operating within a temperature range of -30 to 65 degrees Celsius, ensuring reliable operation in a wide range of environments. It also features a hardware filter with a 4 ms response time, which helps to reduce noise and improve signal quality. With a power consumption of 20.6 W on the terminal board, this product is energy-efficient and cost-effective. The board also features an LED indicator that provides users with a visual indication of the status of the inputs.
- There are no jumpers or hardware settings on the module.
Wiring
- Connect the wires for the 24 dry contact inputs directly to two I/O terminal blocks on the terminal board. These blocks are held down with two screws and can be unplugged from the board for maintenance. Each block has 24 terminals accepting up to #12 AWG wires.
- A shield terminal strip attached to chassis ground is located immediately to the left of each terminal block.
Cabling Connections
- Connect the I/O processor using connector JR1 in a simplex system.
- Connect I/O processors in a TMR system using connectors JR1, JS1, and JT1. Depending on the type of Mark VI, Mark VIe, or Mark VIeS system and the level of redundancy, cables or I/O packs are plugged in. The I/O packs for a Mark VIe/VIeS control system plug and attach to side-mounting brackets.
- The pack accepts one or two Ethernet cables. It is possible that firmware must be downloaded.
Operation
- Filters at each input near the point of signal entry reduce high-frequency noise and suppress surge. The dry contact inputs on H1 are powered by the turbine control's floating 125 V dc (100-145 V dc) supply.
- Prior to feeding each contact input, the 125 V dc bus is current limited in the power distribution module. The discrete input voltage signals are routed to the I/O processor, which sends them through optical isolators to provide group isolation before sending them to the system controller. The isolation circuits' reference voltage establishes a transition threshold equal to 50% of the applied floating power supply voltage.
- When the voltage drops below 13% of the nominal rated supply voltage, the tracking is clamped to force all contacts to indicate open.
- For each input, a pair of terminal points is provided, with one point (screw) providing the positive dc source and the second point providing the board's return (input). The first 21 inputs on each terminal board have a current loading of 2.5 mA per point, and the last three have a 10 mA load to support interface with remote solid-state output electronics. The contact input circuitry is NEMA Class G creepage and clearance rated.
Input Current
- H1 / S1 (for 125 V dc applications): First 21 circuits draw 2.5 mA (50 kohm), Last three circuits draw 10 mA (12.5 kohm)
- H2 / S2 (for 24 V dc applications): First 21 circuits draw 2.5 mA (10 kohm), Last three circuits draw 9.9 mA (2.42 kohm)
- H3 / S3 (for 48 V dc applications): First 21 circuits draw 2.5 mA, Last three circuits draw 10 mA
Characteristics
- Size: 33.02 cm high x 10.16 cm wide
- Temperature: -30 to 65 degrees Celsius
- Number of channels: 24 contact voltage input channels
- Input filter: Hardware filter, 4 ms
- Power consumption: 20.6 W on the terminal board
- Fault detection: Loss of contact input excitation voltage, Non-responding contact input in test mode, Unplugged cable
Installation Procedure
- Connect the wires for the 24 dry contact inputs to the terminal board's two I/O terminal blocks. These blocks are held in place by two screws and can be disconnected from the board for maintenance. Each block has 24 terminals that accept wires up to #12 AWG.
- To the left of each terminal block is a shield terminal strip connected to chassis ground. Connect the TBCI to the VCCC/VCRC board using connector JR1 in a simplex system. Connect board to the VCCC/VCRC boards in a TMR system using connectors JR1, JS1, and JT1. Using plugs JE1 and JE2, connect TBCI to the contact excitation voltage source.
Power Requirements
- Control cabinet can be powered by a variety of sources. Before entering the Mark VIe enclosure, each power input source (such as the dc and two ac sources) should pass through its own external 30 A two-pole thermal magnetic circuit breaker.
- The breaker must be supplied in accordance with the applicable site codes. Any combination of 24 V dc, 125 V dc, and 120/240 V ac power sources can be used.
- The power distribution hardware in the Mark VIe is configured for the required sources, and not all inputs may be available in a configuration. For control electronics operation, input power is converted to 28 V dc. Other power is distributed as needed for I/O signal processing.
System Environment Features
- Mark VIe electronics are packaged in a variety of different configurations and are housed in a variety of different environments. When packaging active electronics in an enclosure, heat sensitive components must be considered. The maximum temperature change allowed without condensation is 15°C per hour.
- To maximize life expectancy, the environment should be kept at levels lower than the maximum rating of the equipment. Temperature has an inverse relationship with mean time between failure (MTBF). As a result, system reliability at 60°C is lower than at 35°C.
WOC is happy to assist you with any of your GE requirements. Please contact us by phone or email for pricing and availability on any parts and repairs.
FREQUENTLY ASKED QUESTIONS
What is IS200TBCIH2B?
It is a Contact Input Terminal Board developed by GE
What is the operating temperature range of the board?
The device can operate in temperatures ranging from -30 to 65 degrees Celsius.
How many contact voltage input channels does the board have?
It has 24 contact voltage input channels.
Does the card have an input filter?
Yes, it has a hardware filter with a 4 ms response time.
What is the power consumption of the terminal board?
The power consumption of the terminal board is 20.6 W.
