CONTROL A3-290605 Control And Trigger Board For 3- Phase Power Supplies

CONTROL A3-290605 CONTROL AND TRIGGER BOARD FOR 3-PHASE POWER SUPPLIES

Product Details

The Control and Trigger Board, CAT Board, is designed to the requirements learned from many years of experience with SCR controlled high power equipment. Modern CMOS integrated circuit technology has allowed an extremely compact, unitized design with low power consumption. The following description covers the major features and applications of the design.

Power and Reference Regulator

1. Control power (120 VAC nominal) must be applied to terminals TB1-1 and terminal TB1-2.

a) Minimum input voltage: 85 VAC

b) Maximum input voltage: 135 VAC

2. Phasing References

a) Must be applied to terminals TB1-3, TB1-4, and TB1-5.

b) Correct phase rotation and sequence is important to assure proper firing of the SCR’s.

c) The 3-phase references must be balanced to within ± 5% of each other. The CAT board incorporates phase imbalance detection and in the event of a lost phase or high imbalance the board will inhibit its output until the phase balance has been restored.

d) The voltage of the 3-phase reference is not critical; it may be between 60 VAC and 200 VAC.

e) The 3-phase reference may be obtained through a resistor divider or through three small control transformers.

3. Control Amplifier Reference

a) A stable control reference with a low temperature co-efficient is provided on terminal TB1-7.

b) The reference must be preset to 5.00 volts through P1; it can supply approximately 30 ma to the control potentiometers.

c) The control potentiometers may be 10K, 2 watts. They are returned to terminals TB1-12 (VREF) and TB1-13 (IREF). The ground return is terminal TB1-6.

d) Ample filtering of the input reference inputs (RC = 0.4) is used to obtain maximum noise suppression before the control amplifier.

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it is a leading global supplier of control system components. We specialize in control systems and drives.
With many years of experience in the industrial sector, we consistently deliver the highest quality of spare parts.

We have tens of thousands of spare parts and spare parts warehouse . Products and services to serve for installing of users control system,
Distributed control systems, programmable controllers, panel controller and drive!

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* Reduced maintenance costs!

We have a large inventory of control system components. We also made a lot of new hardware and discontinued spare parts to help supporting your existing control systems.

We have experienced staff, extensive testing , all the spare parts which we sold are with warranty period of one year, and they have undergone rigorous testing and certification!