System Overview
2-47
Collimator Control Board
MOT
_IRIS+
MOT_IRIS-
MOT_ROT+
MOT_ROT-
MOT_WIDTH+
MOT_WIDTH-
Collimator
COL_REF+
5V
COL_REF-
IRIS_POSN
ROT_POSN
WIDTH_POSN
POWER SUPPLY
ERROR
INDICATORS
MCB
Collimator Control Board
DAC with
SPI
control
IRIS
Analog
PID
ROT
Analog
PID
WIDTH
Analog
PID
IRIS
ROT
WIDTH
IRIS
MOT
Driver
IRIS
MOT
Driver
IRIS
MOT
Driver
IRIS
MOT
ROT
MOT
WIDT
H
MOT
DIN
SCLK
SYNC
Mother board
+15V -15V +5V
Power
There are +5V, +15V and -15V inputs.
- +15V is used to drive OC input and all the OPA.-15V is used to drive all the OPA.
- +5V is used to drive OC output, DAC and output-drive circuit. Locally,
- -5V shall be generated from -15V by MC7905, and it’s used to drive output-drive circuit.
- Locally, +5V±1% reference shall be generated from +15V by LM4040-5.0, and it’s used as DAC reference.
- Another LM4040-5 shall be used to output +5V±1% reference to collimator potentiometer.
To Next Page
Loading...
