Edwards SCU-1600 - Setspeedsetpoint

SCU-1600 Control Unit for Turbomolecular Pump
March 10 91 Issue 1-a
5
SERIAL COMMUNICATION PROTOCOL
Parameter Item Data format Remarks
1 The number of
"Error Record"
8-bits hexadecimal coded
ASCII
Up to 10 errors
2 to 11 Error Record 1 to
Error Record 10
8-bits hexadecimal coded
ASCII
*1
*1
Value corresponding to the error message is transmitted (refer to Table 21 and 22). The most recent error has the smallest
parameter number. When the number of errors being detected is under the maximum number, the value of parameter that is
larger than the number of errors has been detected is set to 0.
Example:
When 3 errors have been detected in the past;
The number of "Error Record" : 03
hex
= 3 errors
Error Record 1 : 0F
hex
= 15 = Disturbance Xb
Error Record 2 : 0D
hex
= 13 = Disturbance Xh
Error Record 3 : 15
hex
= 21 = T.Cable Disconnected
Error Record 4 to 10 : 00
hex
= No error recorded
Parameter 1 2 3 4 5 6 7 8 9 10 11
ASCII 0 3 0 F 0 D 1 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0
HEX 30 33 30 46 30 44 31 35 30 30 30 30 30 30 30 30 30 30 30 30 30 30
5.4.12 SetSpeedSetPoint
Function: Changes the "Speed Set Point" value. This value can be changed in the range from half of
the rated rotational speed to the rated rotational speed.
Transmission frame:
PC->SIM Stx 0 0 1 Bsp h
Parameter 1 Etx LRC
SIM->PC Ack
PC->SIM Ack
SIM->PC Stx 0 0 1 # Etx LRC