GMW 231HC, User Manual

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Section 2
SPECIFICATIONS
Table 1. Model 231HC Bipolar Current Amplifier Specifications
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Electrical
Power Input (From DC Supply)
50V minimum to 160V maximum
Up to 1,000W required by the power amplifier
Recommended DC Power Supplies
Sorensen SGA 160/31 160V, 31A, 4,960W
Sorensen SGA 160/63 160V, 63A, 10,080W
Power Input for DC Power Supplies
Voltage
187 - 242VAC* 342-440VAC 396 - 528VAC
Current
SGA 160/31 21A 14A 13A
SGA 160/63 41A 27A 26A
3 phase, 3 wire plus ground
* Standard delivery
Input Capacitor Bank
200mF
20 x 10,000 μ F, 250VDC
Power Input (Aux Power Supply)
115VAC, 50/60Hz, 2A
or 220VAC, 50/60hz, 1A
User selectable on rear panel
Power
Output
160V, 70A maximum
With SGA 160/31, approx. 3,960W average
With SGA 160/63, approx 9,080W average
Control Modes
Computer
Control
National Instruments Multifunction DAQ, Model USB-6251
Current Control Resolution: 16 bits
(1)
Current & Voltage Monitor Resolution:16 bits
Digital read back of amplifier and magnet interlock status
Magnetic field read back resolution:16 bits
Output Current Control
(1)
Differential, ±10 volt analog input on rear panel
Input Impedance 50K Ω each input to ground, 25K Ω to each other
External Monitoring of Output Current & Voltage
Current Output:
±1V/10A, ±1%, Output Impedance 0.1 Ω
Voltage Output:
±1V/20V, ±1%, Output Impedance 0.1 Ω
Note (1): The Current output control may be via either the USB interface or the analog interface,
but not both.