Pacific Laser Equipment 1SA-1000 - Manual (Page 8)

Servo Amplifier 1ch-1000 User manual
1SA-1000
April 28, 2004 Release: 1.21 2003 by Pacific Laser Equipment
PLEquipment, 3941 S. Bristol St. Unit E, # 122, Santa Ana, CA. 92704, ( & Fax: 509-355-5155, Email: [email protected]
Page 8 of 16
3. Blocks description
3.1 General
The system is composed of the following subassemblies.
Power supply. Providing regulated +/-12V @ 100mA and +5V at 500mA from AC 120V
High voltage amplifier. Provides 0 to –1000VDC from +12VDC. Gain of (–)200.
Servo controller. Specialized for SGS. Pre-calibrated with a matched piezo actuator.
Digital display. Calibrated for HV output reading x10 and displacement in microns.
3.2 Servo controller (Component Functions):
The servo controller shown in the picture bellow is specialized for strain gage sensors and
has been pre-calibrated for the piezo actuator purchased with it.
The main adjusting potentiometers and dipswitches are listed with their function bellow.
1. Voltage setting for SGS. At full expansion set to a voltage range between 4-6V on (6).
2. Sensor gain. Adjusted (in manufacturing) for nominal expansion on 10V analog input.
3. P-term. Adjusted (in manufacturing) so that the system will not self oscillate in EC.
4. Display offset. Adjusted in VC with 0V in so that the digital display reads 0V.
5. Monitor output. Adjusted for 0-10V on a displacement range of 0 to nominal expansion.
6. Test point for SGS excitation. See point (1).