• Servo Systems Co.

General Dynamics 31TRX4A • M20708/62

M20708/62 23TRX6B

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REQUIREMENTS

Requirement Value Unit Tolerance
Frequency 400 Hz ±1%
Primary Voltage 115 volts ±1%
Primary Current 1650 milliamps maximum
Primary Power 14.4 watts maximum
Impedance Zss 2.5-5.5 ohms min.-max.
Impedance Angle Zss 60-75 degrees min.-max.
Transformation Ratio 0.783 ----- ±2%
Phase Shift (Lead) 2.0 degrees ±1.5
Electrical Error 36.0 minutes maximum
Receiver Error 8.0 minutes maximum
Null Voltage Total 170 millivolts maximum
Fundamental 35.0 millivolts maximum
Synchronizing Time:
30 ±2
1.0 seconds maximum
Synchronizing Time:
177 ±2
2.0 seconds maximum
Torque Gradient 0.67 ounces-inches minimum
Radical Play 0.0008 inches maximum
End Play 0.0030 inches ±0.0020
Temperature Rise 60.0 degrees (C) maximum
Variation of Voltage
(+10%) and Freq. (-5%)
27.0 watts maximum