IS200TRLYH1CDB - Relay Output with Contact Sensing

SPECIFICATIONS:

Part Number: IS200TRLYH1CDB
Manufacturer: General Electric
Series: Mark VIe
Product Type: Relay Output with Contact Sensing
Number of Relaychannels: 12
Maximum operating voltage: 250 V rms
Power supply voltage: 28 V dc
Voltage Range: 14 to 32 V dc
Max response time on: 1ms
Mounting: DIN-rail mounting
Technology: Surface mount
Operating temperature: -35 to 65°C
Size: 17.8 cm wide x 33.02 cm
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH-6421I

FUNCTIONAL DESCRIPTION:

IS200TRLYH1CDB is a Relay Output with Contact Sensing manufactured and designed by General Electric as part of the Mark VIe Series used in GE Distributed Gas Turbine Control Systems. TRLYH1C holds 12 plug-in magnetic relays. The first six relay circuits are Form-C contact outputs to drive external solenoids. A standard 125 V dc or 115 V ac source with fuses and onboard suppression is provided for field solenoid power. TRLYH2C holds 12 plug-in magnetic relays. The first six relay circuits are Form-C contact outputs to drive external solenoids. A standard 24 V dc source with fuses and onboard suppression is provided for field solenoid power. The next five relays (7-11) are unpowered isolated Form-C contacts. Output 12 is an isolated Form-C contact with a non-fused power supply, used for ignition transformers. For example, 12 NO contacts have jumpers to apply or remove the feedback voltage sensing. TRLYH1C and H2C are the same as the standard TRLY board except for the following:

• Six jumpers for converting the solenoid outputs to dry contact type are removed. These jumpers were associated with the fuse monitoring.
• Input relay coil monitoring is removed from the 12 relays.
• Relay contact voltage monitoring is added to the 12 relays. Individual monitoring circuits have voltage suppression and can be isolated by removing their associated jumper.
• High-frequency snubbers are installed across the NO and Sol terminals on the six solenoid driver circuits and the special circuit, output 12.

INSTALLATION:

The customer 12 relay outputs are wired directly to two I/O terminal blocks mounted on the terminal board as shown in the following figure. Each block is held down with two screws and has 24 terminals accepting up to #12 AWG wires. A shield terminal strip attached to the chassis ground is located immediately to the left of each terminal block. Solenoid power for outputs 1-6 is plugged into JF1 normally. JF2 can be used to daisy-chain power to other TRLYs. Alternatively, customer power may be wired directly into TB3 when power is not plugged into JF1/JF2. JG1 provides power to the customer’s special solenoid, Output 12.

OPERATION:

For simplex operation, a cable carries control signals plus monitor feedback voltages between the I/O board and TRLY through JA1. Relay drivers, fuses, and jumpers are mounted on the relay board. Relays 1-6 have a 250 V MOV for transient suppression between normally open and the power return terminals. Relays are driven at the frame rate and have a 3.0 A rating. The rated contact-to-contact voltage is 500 V ac for one minute and the rated coil-to-contact voltage is 1,500 V ac for one minute. The typical time to operate is 10 ms. The relay outputs have failsafe features so that when a cable is unplugged, the inputs vote to de-energize the corresponding relays. Similarly, if communication with the associated I/O board is lost, the relays de-energize.

WOC has the largest stock of GE Distributed Gas Turbine Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly contact our team by phone or email.

FREQUENTLY ASKED QUESTIONS:

What is a relay output with contact sensing?

A relay output with contact sensing combines a traditional relay (which can control high-power circuits) with the ability to detect whether the contacts of the relay are open or closed.

How does contact sensing work in a relay output?

Contact sensing typically involves using additional circuitry to monitor the state (open or closed) of the relay contacts. This can be achieved by using a separate set of contacts or by sensing the current flowing through the contacts.

What are the applications of relay outputs with contact sensing?

These relays are commonly used in scenarios where it's essential to know whether a load (such as a motor or a valve) is actively connected or disconnected. They are used in industrial automation, HVAC systems, and equipment monitoring.