SPA-Case Series: Portable 25VA Synchro Amplifier in Instrument Case with Readout (Ruggedized Synchro Simulator)
Features:
- Rugged Sealed Case
- Cable & Manual Storage
- Kick Circuit (Prevents Rotor Hang-Up)
- Transformer Isolated
- Static & Dynamic Mode (8 Speeds and Direction)
- 20VA Output Drive
- Self-test
- Short Circuit & Thermal Protection
- Current Overload Indicator
- Large .56" High LED Display
Description:
The Synchro Simulator has two modes of operation: Static and Dynamic. The mode of operation is selected by the position of the mode switch. In the static mode, the thumbwheel switches select the output angle. In the dynamic mode, the speed and direction switches determine the rate and direction of synchro outputs. Self test circuitry continuously monitors and displays the output.
Theory of Operation
(REF. BLOCK DIAGRAM DWG #B4879-1)
The Synchro Simulator has two modes of operation: Static and Dynamic. The mode of operation is selected by the position of the mode switch. In the static mode, the thumbwheel switches select the output angle. In the dynamic mode, the speed and direction switches determine the rate and direction of synchro outputs. Self test circuitry continuously monitors and displays the output.
Other features include dynamic mode and overload indicators. The dynamic mode indicator will be lit when the simulator is in the dynamic mode. The output overload indicator will light if a current overload or thermal overload exists. The kick circuit should be enabled for torque receiver loads (not for passive CT or CDX loads). The function of the kick circuit is to free a hang-up condition so the rotor can return to null. The kick shifts the synchro output angle by 1200 for 1/2 second when current overload is present and will repeat every 4.5 seconds as long as the overload condition exists.
