360 Telescope Electronic Documents
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Chapter 3- 360 Alpha & Delta Drives

3	1	Servo Control System
3	1.1	Introduction
3	1.2	The mechanical Drive System.
3	1.3	Analogue Feedback Loops
3	2	Analog Servo System
3	2.1	General Arrangement
3	2.2	Servo Interface Operating Modes
3	2.3	Drive Current Monitoring
3	2.4	Accelerometers
3	2.5	Strip Encoder
3	3	General System Layout
3	3.1	General Equipment Layout
3	3.2	The Control Chassis
3	3.3	Control Chassis Interlock
3	4	The Basic Analogue Servo System
3	4.1	Introduction and References
3	4.2	General Description
3	4.3	Specifications
3	4.4	Construction and Layout
3	4.5	Power Supply And Interlock Wiring
3	4.6	Amplifier Input/Output Connections
3	4.7	Amplifier Circuit Operation
3	4.8	Intermediate Driver Stage
3	4.9	The Power Sections
3	4.10	Current Limiting Circuitry
3	4.11	Preset Adjustments
3	5	Accelerometers
3	5.1	Location And General Wiring
3	5.2	Circuit Operation
3	5.3	Fault-Finding
3	6	Analogue Control Circuits.
3	6.1	Location and General Wiring
3	6.2	Speed Limitation
3	6.3	Acceleration Limitation
3	6.4	The PID Unit
3	6.5	Servo Interface Circuits
3	6.6	Adjustment And Calibration Levels
3	7.0	Engineering Panel