���?/3Ѱ&*� �X��ٚf��&T�G6�Y�*�\����>K����M2�i�id4���{>� ��aQ[:�rh~��l��� *pU� �\ ���~�q�ӌ�t�iq����9=5����t���.+r}V�9�� �vi�L�R��]C�ԑ���X��س$ signal inputs when driven with Bus Cards PCI, VME, D-S cards using Use E in part number in lieu of -A, -B, -C, when driven by our cPCI Cards.
!s���}�LJ���+�0;�u JHOSb���#H�`���(fງ�&Dm�ڳ&��Á� It was the first integrated reference source on synchro/resolver data converters. On the outside, this type of resolver may look like a small electrical motor having a stator and rotor. reference voltage 40V and signal voltage 38V are expressed as -40/38) Application notes Using this AC pulsating power technique, the output signals are tightly coupled to the reference input and the only power dissipated is the current times the small voltage difference between the pulsating power stage and the synchro signal outputs.
According to theory synchro is a three wire signal S1 S2 S3 with reference voltage R1 R2. defining reference and signal voltage and frequency, operating temperature range and whether Synchro or Resolver format is given below. Our first Synchro Conversion Handbookwas conceived in 1973 during a series of technical seminars con-ducted at DDC. 8) of MDSC/MDRC29 Series Digital to Synchro Converters or Digital to Resolver Converters Fig. Optimum efficiency is achieved by essentially using as much AC direct power transfer as possible to drive the AC outputs because there is no DC conversion in the power transfer and the amplitude of the internal AC power rails need only be a few volts greater than the voltages driven on the outputs.Because the outputs are allowed to follow the reference input (synchro’s and converters use ratio accuracy), these supplies only need to be a small percentage higher in voltage than the amplifiers maximum output voltage to accommodate the headroom required of the circuit.The lower the voltage differential required input to output (considering the internal transformers), to drive the load; the minimum the power loss (in the form of heat), and the greater the efficiency of the amp.Using this AC pulsating power technique, the output signals are tightly coupled to the reference input and the only power dissipated is the current times the small voltage difference between the pulsating power stage and the synchro signal outputs.Because both the power stage and the signal outputs are sinusoidal, and the power stages headroom is very small, the power required to drive the load is minimal.
A logic 1 is used to disable the power outputs, a logic 0 will will enable the outputs providing the unit is powered and is not in a thermal overload sensed condition.When Driving Torque Receivers, the current limiting is typically experience whenever the rotor is off null (any significant difference in angle, from where it is being commanded to go), typically activating the kick circuit to rapidly set the driven synchro in motion (to free the rotor from hang-up), allowing the rotor to move towards its commanded angle (=null).~~~~~~~~~~~~~~~~~~~~SPECIFICATIONS:~~~~~~~~~~~~~~~~~~~~* Providing unit is not in thermal overload; internal Temperature is less than 125* Synchro Outputs when disabled are as open circuit, high impedance state.
Hi, i am working on developing a synchro simulator using NI 9269 in LV 2012. !�P�ck���1/�_��4��Y�G^������?�J1��w� :���A+��yRWw�)���J`�9\b�ȬX&g�E�s���Q��ZAh�Mt����B�R�&"C^>���n����f���o�.^�#2hh��sb��/��R$q���1�'�1|�{��&_��ߕ��wۣ�'�\�����l%z���yk�) Ta���h�z.OHO�=;z���+�eLh�;��a���#�K����66��{�nAr"�qzU��S�s�cg�o��J~����� y����b�H��"S�]�>�x+9��C��D��-�c�eJ�ĝB0����0�������t�D�,�4�O�C��������梡��g��L�$��1��AY@��>!�Xa9��������_�f+1�w.-�iA�qQ�$AOz*�N�������zª�+�f��w���=����"c���hE�J`[���b?�",F�[��z`�c�b�M�k��3�/����A���w�&%A��D� �!����%� 3OJ�bf� �$A˩�H&DP����et�먷s8��[�)-~�����'E�'�뤬�ž��Qe�cO*�.�(w��i����V=�ow_u����
They are commonly used on synchro based data transmission, retransmission, simulation, and instantaneous absolute position indicating and active control systems.The SPA series accepts any 3 wire synchro, or 4 wire sine/cosine resolver inputs.
The amount by which the output voltages differ from an exact 0° or 180° time-phase relationship with the input voltage is known as the synchro (time) phase shift. They accept +/- 15V DC and provide up to 5VA of transformer isolated output power. This will provide a very smooth transition that will reduce surges, and inductive content, allowing the user to minimize the required size of the relays, and dramatically increase the life of any relays used for switching these (high power) terminations. 11. 881 0 obj <>/Outlines 588 0 R/Metadata 878 0 R/AcroForm 883 0 R/Pages 852 0 R/OpenAction 882 0 R/Type/Catalog>> endobj 588 0 obj <> endobj 878 0 obj <>stream ]P�i�N/5���t�,ҝ��Sryi?�!y����q���- ���r}fz��vȔuLMi�"ƟX���8d�M ĢBN��+�j`����_�Qz�2M݀���m���J The relays can very safely switch these points without any appreciable power demand during the actual switching. ��D0��9A�_��� is same as the digital data common only.10 arc.
D-S options include: Data Latch inputs for synchronous or strobed data transfer and high-byte/low byte latched enable inputs for use with either an 8 or 16 bit data bus.The power supply produces unfiltered, full-wave rectified positive and negative voltages. In other words, both speeds are converted using the same reference signal. Use this feature only if at least one Torque Receiver is being driven from the outputs.The disable can be used to sequentially power up the synchro amps if several are used in a power sensitive application, or when used where the synchro signal outputs are going through switching relays for auxiliary, back-up, or test systems.The disabling the outputs prior to switching either the reference/power inputs or the stator outputs, or both, and then driving the synchro amp inputs to match the angle dictated on the destination source prior enabling the outputs. Isolation Transformer isolated units are completely isolated from each other and the backplane for all the reference and signal lines. The amplifier will sense the overload that occurs if the rotor is persistently drawing too much current trying (unsuccessfully) to move the shaft load, and (with the kick/CO jumper installed) the amp will automatically shift the output by 120 degrees for a nominal 1/2 second duration to free the rotor from the false null.Once the rotor is put in motion, it has greater control of its output. �g�Bq��~����?Gq0�!���=
%PDF-1.6 %����