Inactive - Unable to repair

1027

The model 1027 linearly controls, with respect to a command or control signal, the electrical power applied to a single-phase resistive load by distributive zero-cross operation of silicon controlled rectifiers (SCRs).

 

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1026

The model 1026 is a single phase, zero-cross, solid state contactor replacement. The model 1026 re- sponds to an AC command signal of 120 or 240 Volts.

 

The command signal is electrically isolated from the line and load voltage.

 

The 1026 circuit provides the proper loading to triacs and other solid state switching devices to insure correct turn-on of the switching device and to insure that the leakage current from these devices when in the off state does not cause false operation of the SCR.

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1024A

The models 1024 and 1024A are single phase, zero- cross power controllers.

 

The model 1024 controller responds to a DC command signal between 3.5 and 32 Volts.

 

The model 1024A controller responds to an AC com- mand signal between 90 and 280 Volts.

 

Both models control the average AC voltage to the load proportional to the command signal.

 

The command signal is electrically isolated from the line and load voltage.

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1024

The models 1024 and 1024A are single phase, zero- cross power controllers.

 

The model 1024 controller responds to a DC command signal between 3.5 and 32 Volts.

 

The model 1024A controller responds to an AC com- mand signal between 90 and 280 Volts.

 

Both models control the average AC voltage to the load proportional to the command signal.

 

The command signal is electrically isolated from the line and load voltage.

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1023

The model 1023 is a single phase, time proportioning, zero-cross power controller.

 

The control circuit is powered from the mA command signal.

 

The percentage of ‘ON’ time to ‘OFF’ time is linearly proportional to the mA current command signal.

 

The cycle time range is adjustable from 1 to 10 seconds.

 

The command signal is electrically isolated from the line and load voltage.

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1010

The model 1010 provides an optically isolated constant current gate drive to a pair of SCR's. The drive is operated by applying a voltage to the control inputs.

 

The model 1010 can be used to operate each SCR separately by applying current or voltage to the correct input.

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