SeaSpace TeraScan 1.5M, Operation And Maintenance Manual

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SeaSpace Corporation
S PCU Status. Response is four ASCII characters representing the system status according to
the table below. PCU status bits. PCU response: "S1234", CR, LF, ">"
(Items marked by * are different from the 2.4m, 3.6m, and 4.5m antennas.)
BYTE 1 BYTE 2
Bit 7 = 0: No dish scan; 1: Dish scan *Bit 7 = Elevation Targeting
(should always be 0)
Bit 6 = 1 Bit 6 = 1
Bit 5 = 1: Fast Mode; 0: Std Mode Bit 5 = Azimuth Targeting
Bit 4 = 1: Sat Ref Mode; 0: Gyro Mode Bit 4 = 0
*Bit 3 =1: Moving to Cross-level Target Bit 3 = Heading Valid
*Bit 2 =1: Unwrap Bit 2 = Error Detected
(see bytes 3 & 4)
Bit 1 = DI2 Status Bit 1 = 1: Initializing PCU
0: Not Initializing PCU
Bit 0 = 1: Downconverter Fault Bit 0 = 1: Searching
0: Downconverter OK 0: Signal > Threshold
BYTE 3 (Not Used) BYTE 4 (PCU Errors)
Bit 7 = 0 Bit 7 = 0
Bit 6 = 1 Bit 6 = 1
Bit 5 = 0 Bit 5 =
Bit 4 = 0 Bit 4 =
Bit 3 = 0 Bit 3 = 1: Azimuth Reference Error
Bit 2 = 0 Bit 2 = 1: Azimuth Servo Limit Error
(Torque Error)
Bit 1 = 0 Bit 1 = 1: Elevation Servo Limit Error
(Torque Error)
Bit 0 = 0 Bit 0 = 1: Cross-level Servo Limit Error
(Torque Error)
Some common status values for ac 1 st follow (XX = any value):
40 40 40 60
Antenna idle. No tracking in progress.
XX XX X2 XX
PCU initializing. Other errors (such as communications errors) may also
be shown. Ignore these errors until PCU initialization is complete.
41 XX XX XX
Cross-level torque error.
42 XX XX XX
Elevation torque error.
44 XX XX XX
Azimuth torque error.
48 XX XX XX
Azimuth reference error.