DHR Series Getting Started Guide Page 54
System POST Error Codes
Table 4: DHR Series POST Error Codes
Number of Beeps Code (hex) Description
1 1 Signal cable not fitted
2 2 Power cable not fitted
3 4 Instrument ±48V supply not activated
4 8 System controller communications failure
5 10 Heater drive communications failure
6 20 Display not present
7 40 Keypad not present
8 80 Sensor board magnetic bearing data communications
failure
9 100 Sensor board encoder data communications failure
10 200 Magnetic bearing actuator fault
11 400 Motor drive activation failed
12 800 Gap set drive activation failed
13 1000 Module firmware version error
14 2000 Module status/POST error
15 4000 FPGA version error
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