GMW 231HC, Руководство пользователя

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4.4.1 - USB-6251 DAQ
The National Instruments USB-6251 DAQ together with GMW’s Magnet Control software
provides control and monitoring of the 231HC Bipolar Amplifier. If GMW’s Magnet
Control software is not used, it is still possible to computer control the 231HC Bipolar
Amplifier by writing custom software to communicate with the USB-6251. The table below
describes the channels used and their functions.
USB-6251 Connections
Signal Type Direction 6251 Terminal
Current Control Output
±10V output proportional to ±70A
current output
Analog Output AO-0
Current Control Common Ground Ground AO-GND
Current Monitor
±1V / 10A
Analog Input AI-1
Current Monitor Common Analog Input AI-9
Voltage Monitor
±1V / 20V
Analog Input AI-0
Voltage Monitor Common Analog Input AI-8
Field M
Analog Input AI-2
Field Monitor -
Analog Input AI-10
Field Monitor Common Ground Ground AI-GND
+5V (Amplifier Power)
- Active high,
the 231HC DC supply is providing
sufficient voltage for operation
Digital Input P0.0
Normal
- Active low, the 231HC is
ready and will operate when not
inhibited
Digital Input P0.1
Inhibit
- Active low, the front panel
inhibit switch is active
Digital Input P0.2
Module Fault
- Active low, the
231HC has a fault in the MOSFET
power output module
Digital Input P0.3
DC Fault
- Active low, one or more
DC voltages are outside operating
limits
Digital Input P0.4
Over Current
- Active low, the
231HC is disabled due to current over
limits
Digital Input P0.5
Over Temperature
- Active low, the
231HC is disabled due to an over
temperature condition
Digital Input P0.6
231HC Digital Ground Ground Ground DGND
Interlock Status
- Digital Input P0.7
Interlock Status Common Ground Ground DGND