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Universal Thyristor Amplitude controller SD 110






SD 110 3 to 10 A

SD 214 10 to 25 A


Universal Thyristor Amplitude controller SD 110 to 3 A to 10 A







Automatic operating range
220 - 380 Volt, 50 Hz - 60 Hz

Phase Control, 0 - 95 % of voltage
compatible e-m vibrators half-wave drive
other controlsystems on demand

3 Amp to 10 Amp

Potentiometer / or 0 - 10 Volt
adjustable max. amplitude
setting range stepless from zero to max. .
soft start

open to panelmounting
size 200 x 115 x 57 mm


Operating conditions : -10 - +40 ºC, 10 - 80% RH

Subharmonic controller for a dual coil electromagnetic vibrator, which derives both power and timing from a
conventional a.c. line, having a zero crossing detector providing pulses at twice line frequency to a phase control.
The phase control provides a selectively variable pulse width and triggers a frequency divider, which in turn triggers
a divide-by-two-counter. Pulses from each of the phase control, divider and counter are fed to a logic controller which generates plus and minus gate signals. The gate signals alternately fire a pair of oppositely-directed SCR's, each SCR connected in series with one
of the dual coils across the a.c. line. A polarity detector and reset circuit restore the polarity information and
synchronize it with the direction of conduction of the SCR's.

Drawing 1) control input


Scheme of control input to both
amplitude controllers
SD 110 and SD 214


Drawing 2) control input with jumper


This konfiguration with jumper, is using
the internal potentiometer (P-intern) to control the SD110.


Drawing 3) with external potentiometer


This configuration shows how to control
the SD110 with external 10k potentiometer

The P-intern potentiometer reduces the maximum range of the external potentiometer.


Drawing 4) connecting to computer or PLC


Analogue Controlled Thyristor Controllers AC Solid state relay, 1 and 2 pole. Analogue switching for resistive loads. 4-20mA or 0-10V control. Rated operational voltage up to 480V. LED Indication for normal operation and alarm status. IP20 Protection (finger-proof). DIN rail mountable. All types CE marked. What is a Thyristor Controller? Conventional burst-firing control of heater loads results in fairly large temperature swings in both the heater itself and the thyristor junction switching it. Full-cycle control is a method of distributing energy to heaters evenly and at the same time keeping the thyristor junction temperature at a reasonable level. The Carlo Gavazzi thyristors are designed to eliminate the problems of interfacing BMS (Building Management System) or other analogue output controllers to solid state relays (Thyristors) in heating applications. The innovative A/D input circuitry enables full-cycle control of the heater load with linear transfer. Acceptable control inputs are 4-20mA (RN.F.I) or 0-10Vdc (RN.F.V). The voltage-controlled versions require a 24VAC/DC auxiliary supply whilst current controlled versions require no external supply, being loop-powered. The benefits over conventional systems include: Easy installation Reduced wiring Lower cost Space saving Reduced electromagnetic emissions. To ease ordering and installation even further this series is available in both 1 pole and 2 pole versions. The 1 pole version has been overhauled and is now the RJ1P series as below. The benefits of the new series includes: Built in varistor for load over voltage protection Higher operational voltage range - greater flexibility Higher non-rep peak voltage - further protection against transient and voltage spikes (prevent false triggering) Higher dv / dt - better with inductive loads - prevents false operation of SSR The 50A version is only 45mm wide against 90mm for the RN1F Lighter in weight Microprocessor controlled - more linear, better resolution and can be modified for specific applications