IS200TDBSH2A GE Mark VIe Simplex Discrete I/O Board

IS200TDBSH2A GE Mark VIe Simplex Discrete I/O Terminal Board

Technical Specifications of IS200TDBSH2A

• Brand: General Electric (GE)
• Model: IS200TDBSH2A
• Series: Mark VIe, Mark VI Speedtronic
• Manufacturer: General Electric
• Model Role: Simplex Discrete I/O Terminal Board
• Functional Designation: Contact Input/Relay Output Terminal Board (TDBS)
• Redundancy: Simplex Only
• Contact Inputs: 24 Discrete Contact Inputs
• Output Channels: 12 Relay Outputs
• Group: H2A
• Supply Voltage: 24VDC
• Voltage Range: 18.5-32VDC
• Excitation Voltage: 125 VDC or 24 VDC (Jumper Selectable)
• Excitation Voltage Range: 18 to 132 VDC (Application Dependent)
• Wetting Current: 2.5 mA per Channel (Nominal)
• Input Filter Constant: 4 ms (Hardware-Based Debounce)
• Relay Type: Form-C (Changeover Architecture)
• Relay Contact Rating: 2.0 A Continuous
• Relay Commutation Speed: Less than 10 ms (Typical)
• Surge Suppression: Integrated Metal-Oxide Varistors (MOV) per Channel
• Isolation Rating: 1500 V RMS (Group Isolation)
• Interface Connector: 37-Pin D-Sub Connector (JR1)
• Terminal Blocks: Two Barrier-Type Terminal Strips
• Pluggable TB: Yes
• Mounting Type: Flat, DIN-Rail
• Dimensions: 23.8 cm (H) x 17.8 cm (W)
• Operating Temperature: -30°C to 65°C
• Related Manual: GEH-6721G

Key Performance and Environmental Features

• The board handles a wide excitation voltage range from 18 to 132 VDC for varied applications.
• Each input channel receives protection through integrated Metal-Oxide Varistors for surge suppression.
• The input filter constant of 4 ms provides hardware-based debounce for stable signal reading.
• Group isolation rated at 1500 V RMS protects the control system from electrical noise.
• Relay commutation completes in less than 10 ms for fast response in turbine control.
• The operating temperature range of -30°C to 65°C suits demanding industrial environments.
• Contact input currents stay resistance-limited at 2.5 mA on the first 21 circuits.
• Circuits 22 through 24 carry a higher contact input current of 10 mA.
• The 24 VDC supply on the board is current-limited to 0.5 A with resettable polymer fuses.
• Filters reduce high-frequency noise and suppress surge near each signal entry point.

Installation Guide for IS200TDBSH2A

• Mount the TDBS board plus a plastic insulator on a sheet metal carrier.
• Attach that carrier to a DIN rail for standard cabinet installation.
• Alternatively, mount the board and insulator on a sheet metal assembly.
• Bolt that assembly into a cabinet when DIN-rail mounting does not fit.
• Wire connections directly to two sets of 48-point terminal blocks.
• Use #18 AWG wires for typical field wiring of this board.
• Connect the upper terminal set TB1 to the relay portion of the board.
• Connect the lower terminal set TB2 to the contact input circuits.
• Follow screw assignments identical to those on the SRLY relay board.
• Follow screw assignments identical to those on the STCI contact input board.
• Terminate shields on a separate bracket for noise control.
• Plug any relay option board onto TDBS connectors JW1 and JW2.
• The connector force holds the option board in place.
• Wire external power to a connector provided on the option board.

Operation Overview

• The contact input function and signal conditioning match those on the STCI board.
• The inputs scale for 24, 48, and 125 VDC wetting voltage.
• The input wetting voltage range covers 16 to 32 VDC, 32 to 64 VDC, and 100 to 145 VDC.
• The threshold voltage sits at 50% of the wetting voltage.
• The I/O processor receives discrete input voltage signals from the field.
• Optical isolators pass those signals and convert them to digital form.
• The processor then transfers the digital signals to the controller.

TDBSH2A with WROB Option Board

• The WROBH1A option board adds relay circuit functionality to the TDBSH2A.
• The combination matches a TRLYH1B terminal board when used in simplex mode.
• The option board includes fused-sensed power distribution to the first six relays.
• It also provides dedicated power to the last relay.
• WROBH1 uses default fuse values of 3.15 A.
• Both sides of the power distribution on relays 1-6 are fused.
• This design supports systems where DC power floats with respect to earth.
• Fuse voltage feedback works with 24 V, 48 V, and 125 VDC applications.
• It also works with 120 V and 240 VAC applications.

Packaging List

• 1 x IS200TDBSH2A Simplex Discrete I/O Terminal Board
• 1 x Plastic insulator for mounting
• 1 x Anti-static protective packaging

Shipping and Support

• We ship with FedEx, UPS, and DHL for global delivery.
• We keep this item in stock and dispatch it within 5 days.
• We offer 30-day returns for eligible orders.
• We provide new original products for this General Electric Mark VIe board.

FAQ

• Q: What is the operating temperature range of the IS200TDBSH2A?
  A: The board works from -30°C to 65°C.
• Q: How many contact inputs does this board support?
  A: It supports 24 discrete contact inputs.
• Q: How many relay outputs does this board provide?
  A: It provides 12 Form-C relay outputs.
• Q: What is the supply voltage for the IS200TDBSH2A?
  A: The supply voltage is 24VDC with a range of 18.5-32VDC.
• Q: Does this board support redundant configurations?
  A: No, this board works in simplex configuration only.
• Q: What mounting types does the board support?
  A: It supports flat and DIN-rail mounting.
• Q: What is the isolation rating?
  A: The group isolation rating is 1500 V RMS.
• Q: What is the related manual number?
  A: The related manual is GEH-6721G.
• Q: What is the lead time for shipping?
  A: We ship in-stock items within 5 days via FedEx, UPS, or DHL.

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